Date Geyser Time Interval Duration M/S Preplay Dur. Preplay Height Prediction Bar.Press. 2nd diff 3rd diff Sec/ max.ht. M/S>100' Sec.to1stGdB M/S 75' M/S 100' M/S 70' M/S 50' M/S 30' 12/1/1974 Madison (tremors) 13:47:00 slight rocking motion 12/1/1974 Madison (tremors) 13:50:00 "lo thud,as if hvy item drop" 12/1/1974 Grand 13:45:00 ie 12/2/1974 Old Faithful 10:41:00 02:03 10:38 12/2/1974 Old Faithful 11:32:00 0:51:00 03:59 11:27 12/2/1974 Beehive 10:59:00 12/2/1974 Grand 11:11:00 12/3/1974 Old Faithful 8:51:00 04:43 8:39 12/3/1974 Old Faithful 10:09:00 1:18:00 ~02:00 9:47 12/3/1974 Old Faithful 10:55:00 0:46:00 04:49 10:50 12/3/1974 Old Faithful 12:09:00 1:14:00 02:03 12:04 12/3/1974 Old Faithful 13:04:00 0:55:00 04:22 12:55 12/3/1974 Old Faithful 14:19:00 1:15:00 01:49 14:11 12/3/1974 Old Faithful 15:05:00 0:46:00 04:47 14:59 12/3/1974 Old Faithful 16:30:00 1:25:00 04:17 16:29 12/3/1974 Old Faithful 17:34:00 1:04:00 04:34 17:32 12/3/1974 Old Faithful 18:52:00 1:18:00 03:54 12/3/1974 Old Faithful 19:58:00 1:06:00 04:27 12/3/1974 Old Faithful 21:10:00 1:12:00 02:01 12/3/1974 Old Faithful 21:55:00 0:45:00 05:07 12/3/1974 Beehive 13:10:00 d=5m14s 12/3/1974 Beehive's Indicator 12:55:00 ie 12/6/1974 Old Faithful 9:30:00 01:57 ~9:23 12/6/1974 Old Faithful 10:13:00 0:43:00 04:48 10:04 12/6/1974 Old Faithful 11:33:00 1:20:00 01:49 11:19 12/6/1974 Old Faithful 12:21:00 0:48:00 04:47 12:20 12/6/1974 Old Faithful 13:42:00 1:21:00 01:57 13:33 12/6/1974 Old Faithful 14:29:00 0:47:00 ~4 1/2 12/6/1974 Old Faithful (tremor) 15:11:00 vry lod~tank drvng to door 12/6/1974 Old Faithful (tremor) 15:11:00 "bowl undgrnd,windowss at" 12/6/1974 Old Faithful (tremor) 15:11:00 Old Faithful Lodge rattled 12/6/1974 Old Faithful 15:57:00 1:28:00 04:07 15:48 12/6/1974 Old Faithful 17:13:00 1:16:00 02:06 16:57 12/6/1974 Round 15:12:00 12/7/1974 Great Fountain 14:45:00 ie 12/8/1974 Old Faithful 8:20:00 04:10 12/8/1974 Old Faithful 9:26:00 1:06:00 04:48 9:26 12/8/1974 Old Faithful 10:38:00 1:12:00 04:01 10:33 12/8/1974 Old Faithful 11:49:00 1:11:00 04:32 11:37 12/8/1974 Old Faithful 12:57:00 1:08:00 04:11 12:50 12/8/1974 Old Faithful 14:12:00 1:15:00 04:06 14:08 12/8/1974 Old Faithful 15:22:00 1:10:00 01:59 15:13 12/8/1974 Old Faithful 16:13:00 0:51:00 04:39 16:08 12/8/1974 Castle 14:32:00 12/8/1974 Depression 14:41:00 12/8/1974 Giantess 8:15:00 ie began btwn 23:00&7:20 12/8/1974 Giantess 9:26:00 12/8/1974 Giantess 11:06:00 d=8m 12/8/1974 Giantess 11:46:00 d~9m 12/8/1974 Giantess 12:19:00 d~7m 12/8/1974 Giantess 13:10:00 d=7m22s 12/8/1974 Giantess 13:52:00 d~7 3/4m 12/8/1974 Giantess 14:44:00 d=9m47s 12/8/1974 Giantess 15:58:00 d~8m 12/8/1974 Grand 8:57:00 ie 12/8/1974 Round 9:46:00 minor ~10' 12/9/1974 Old Faithful 9:54:00 04:36 12/9/1974 Old Faithful 11:07:00 1:13:00 02:05 11:06 12/9/1974 Old Faithful 11:57:00 0:50:00 04:49 11:45 12/9/1974 Old Faithful 13:16:00 1:19:00 04:08 13:05 12/9/1974 Old Faithful 14:29:00 1:13:00 04:14 14:18 12/9/1974 Old Faithful 15:32:00 1:03:00 04:34 15:21 12/9/1974 Old Faithful 16:44:00 1:12:00 03:57 16:38 12/9/1974 Old Faithful 18:03:00 1:19:00 02:44 18:00 12/9/1974 Old Faithful 18:51:00 0:48:00 04:59 18:50 12/9/1974 Old Faithful 20:09:00 1:18:00 01:48 20:02 12/9/1974 Old Faithful 20:56:00 0:47:00 04:59 20:52 12/9/1974 Old Faithful 22:11:00 1:15:00 02:18 ~22:03 12/9/1974 Castle 10:17:00 ie 12/9/1974 Castle 19:30:00 ie 12/10/1974 Old Faithful 8:58:00 ~2 8:56 12/10/1974 Old Faithful 9:51:00 0:53:00 ~4 3/4 9:40 12/10/1974 Old Faithful 11:02:00 1:11:00 04:14 11:00 12/10/1974 Old Faithful 12:06:00 1:04:00 03:35 12:06 12/10/1974 Old Faithful 13:16:00 1:10:00 ~1 3/4 13:11 12/10/1974 Old Faithful 14:13:00 0:57:00 04:47 13:58 12/10/1974 Old Faithful 15:21:00 1:08:00 03:36 none 12/10/1974 Old Faithful 16:31:00 1:10:00 03:31 16:18 12/10/1974 Old Faithful 17:37:00 1:06:00 04:03 17:33 12/10/1974 Old Faithful 18:56:00 1:19:00 04:41 18:42 12/10/1974 Old Faithful 20:20:00 1:24:00 04:31 20:05 12/10/1974 Old Faithful 21:32:00 1:12:00 04:14 21:24 12/10/1974 Old Faithful 22:40:00 1:08:00 04:29 12/10/1974 Castle 12:47:00 ie 12/10/1974 Castle 21:31:00 12/10/1974 Depression 17:35:00 12/10/1974 Lion 10:55:00 ie 12/10/1974 North Goggles 11:54:00 ie 12/13/1974 Dome 9:50:00 ie 12/14/1974 Old Faithful 12:08:00 03:37 12:08 12/14/1974 Old Faithful 13:10:00 1:02:00 04:31 none 12/14/1974 Old Faithful 14:22:00 1:12:00 29:00 14:21 <100' 12/14/1974 Old Faithful 15:06:00 0:44:00 04:42 15:05 12/14/1974 Old Faithful 16:23:00 1:17:00 02:15 16:16 12/14/1974 Old Faithful 17:09:00 0:46:00 04:29 17:08 12/14/1974 Old Faithful 18:21:00 1:12:00 ~3 1/2 18:20 12/14/1974 Old Faithful 19:27:00 1:06:00 04:05 none 12/14/1974 Old Faithful 20:31:00 1:04:00 04:12 12/14/1974 Old Faithful 21:47:00 1:16:00 21:38 12/14/1974 Beehive 16:01:00 12/14/1974 Dome 13:44:00 ie 12/14/1974 Lion 11:40:00 ie 12/14/1974 Lion 14:43:00 12/14/1974 Lion 16:37:00 ie 12/15/1974 Old Faithful 11:55:00 01:54 11:37 12/15/1974 Old Faithful ~12:37:00 0:42:00 12/15/1974 Old Faithful 14:07:00 1:30:00 01:44 13:46 12/15/1974 Old Faithful 14:44:00 0:37:00 05:10 14:43 <100' 12/15/1974 Old Faithful 16:08:00 1:24:00 01:53 15:52 12/15/1974 Old Faithful 16:53:00 0:45:00 04:18 16:41 12/15/1974 Old Faithful 18:14:00 1:21:00 01:54 18:01 12/15/1974 Depression 13:02:00 ie 12/15/1974 Grand 16:57:00 ie 12/15/1974 Lion 11:45:00 ie 12/15/1974 Lion 14:21:00 minor 12/16/1974 Old Faithful 9:06:00 01:55 8:59 12/16/1974 Beehive 8:25:00 d=5m3 12/16/1974 Beehive's Indicator 8:15:00 ie 12/17/1974 Old Faithful 9:34:00 04:45 9:25 12/17/1974 Old Faithful 10:47:00 1:13:00 ~02:00 10:47 12/17/1974 Old Faithful 11:32:00 0:45:00 04:43 11:32 12/17/1974 Old Faithful 12:52:00 1:20:00 01:50 12:46 12/17/1974 Old Faithful 13:40:00 0:48:00 04:26 13:34 12/17/1974 Old Faithful 14:51:00 1:11:00 04:01 14:48 12/17/1974 Old Faithful 16:03:00 1:12:00 02:03 15:57 12/17/1974 Old Faithful 16:48:00 0:45:00 04:36 16:47 12/17/1974 Old Faithful 18:00:00 1:12:00 03:53 17:59 12/17/1974 Old Faithful 19:14:00 1:14:00 04:20 19:05 12/17/1974 Old Faithful 20:26:00 1:12:00 short 20:23 12/17/1974 Old Faithful 21:21:00 0:55:00 04:47 21:04 12/17/1974 Castle 16:31:00 ie "hvysno,vis100',gst-28mph" 12/17/1974 Grand 15:17:00 ie 12/17/1974 Lion 8:56:00 minor 12/17/1974 Lion 14:21:00 ie 12/18/1974 Old Faithful 9:27:00 04:40 9:09 12/18/1974 Old Faithful 10:50:00 1:23:00 04:23 10:35 12/18/1974 Old Faithful 12:02:00 1:12:00 02:09 11:58 12/18/1974 Old Faithful 12:55:00 0:53:00 04:51 12:45 12/18/1974 Old Faithful 14:16:00 1:21:00 03:58 14:04 12/18/1974 Old Faithful 15:21:00 1:05:00 04:11 15:16 12/18/1974 Old Faithful 16:44:00 1:23:00 01:47 16:23 12/18/1974 Old Faithful 17:21:00 0:37:00 long 12/18/1974 Old Faithful 18:41:00 1:20:00 02:11 18:37 12/18/1974 Old Faithful 19:36:00 0:55:00 05:19 19:26 12/18/1974 Old Faithful 20:57:00 1:21:00 01:52 12/18/1974 Beehive 10:53:00 gusts 15-36 mph 12/18/1974 Castle 10:15:00 ie steam phase 12/18/1974 Castle 18:30:00 ie 12/18/1974 Round 15:58:00 12/19/1974 Old Faithful 7:47:00 01:49 none 12/19/1974 Old Faithful 8:42:00 0:55:00 04:36 8:30 8:37 12/19/1974 Old Faithful 9:51:00 1:09:00 long 9:57 12/19/1974 Old Faithful 11:05:00 1:14:00 0:3:59 10:52 12/19/1974 Old Faithful 12:18:00 1:13:00 01:56 12:15 12:16 12/19/1974 Old Faithful 13:16:00 0:58:00 04:17 13:01 13:08 12/19/1974 Old Faithful 14:34:00 1:18:00 01:57 14:26 14:29 12/19/1974 Old Faithful 15:19:00 0:45:00 04:42 15:16 15:24 12/19/1974 Old Faithful 16:32:00 1:13:00 ~04:00 16:24 16:35 12/19/1974 Old Faithful 17:39:00 1:07:00 04:16 17:33 17:44 12/19/1974 Old Faithful 18:54:00 1:15:00 01:47 ~18:44 18:52 12/19/1974 Old Faithful 19:44:00 0:50:00 05:20 19:41 12/19/1974 Old Faithful 20:55:00 1:11:00 04:03 21:00 12/19/1974 Old Faithful 22:14:00 1:19:00 04:19 21:59 22:07 12/19/1974 Beehive 14:29:00 12/19/1974 Castle 12:56:00 12/19/1974 Castle 21:50:00 ie 12/19/1974 Depression 12:03:00 12/19/1974 Grand 13:32:00 12/20/1974 Old Faithful 7:23:00 04:21 12/20/1974 Old Faithful 8:29:00 1:06:00 04:22 8:22 8:35 12/20/1974 Old Faithful 9:53:00 1:24:00 03:51 9:38 9:42 12/20/1974 Old Faithful 11:11:00 1:18:00 03:47 10:48 11:03 12/20/1974 Old Faithful 12:24:00 1:13:00 01:50 12:12 12:21 12/20/1974 Old Faithful 13:05:00 0:41:00 04:38 13:05 13:11 12/20/1974 Old Faithful 14:27:00 1:22:00 02:01 14:17 14:21 12/20/1974 Old Faithful 15:11:00 0:44:00 04:35 15:08 15:22 12/20/1974 Old Faithful 16:38:00 1:27:00 01:49 16:20 16:26 12/20/1974 Old Faithful 17:28:00 0:50:00 long 17:18 17:25 12/20/1974 Old Faithful 18:41:00 1:13:00 02:18 18:38 18:43 12/20/1974 Old Faithful 19:47:00 1:06:00 04:47 19:29 19:33 12/20/1974 Old Faithful 21:08:00 1:21:00 03:40 21:02 12/20/1974 Castle 15:30:00 12/21/1974 Old Faithful 8:13:00 03:15 12/21/1974 Old Faithful 9:25:00 1:12:00 04:28 9:18 9:23 12/21/1974 Old Faithful 10:34:00 1:09:00 01:47 10:34 10:40 12/21/1974 Old Faithful 11:24:00 0:50:00 04:19 11:18 12:37 12/21/1974 Old Faithful 12:44:00 1:20:00 01:58 12:38 13:34 12/21/1974 Old Faithful 13:34:00 0:50:00 03:53 14:46 12/21/1974 Old Faithful 14:45:00 1:11:00 04:00 14:40 15:56 12/21/1974 Old Faithful 15:58:00 1:13:00 03:23 12/21/1974 Old Faithful 17:17:00 1:19:00 04:09 16:59 17:08 12/21/1974 Beehive 15:11:00 VR 12/21/1974 Castle 9:10:00 ie 12/21/1974 Dome 11:50:00 12/21/1974 Dome 12:56:00 12/22/1974 Old Faithful 7:54:00 04:29 7:50 12/22/1974 Old Faithful 9:07:00 1:13:00 02:04 9:04 9:09 12/22/1974 Old Faithful 9:56:00 0:49:00 04:10 9:51 9:57 12/22/1974 Old Faithful 11:11:00 1:15:00 03:43 11:03 11:09 12/22/1974 Old Faithful 12:21:00 1:10:00 03:53 12:14 12:21 12/22/1974 Old Faithful 13:28:00 1:07:00 04:40 13:28 13:33 12/22/1974 Old Faithful 14:37:00 1:09:00 02:50 14:44 12/22/1974 Old Faithful 15:42:00 1:05:00 03:45 15:42 15:32 12/22/1974 Old Faithful 16:48:00 1:06:00 04:19 16:48 16:52 12/22/1974 Castle 13:08:00 12/22/1974 Dome 7:56:00 12/22/1974 Dome 9:20:00 12/22/1974 Dome 10:03:00 12/22/1974 Dome 12:17:00 12/22/1974 Dome 13:06:00 ie 12/22/1974 Lion 16:44:00 ie 12/22/1974 Riverside 10:30:00 VR 12/23/1974 Old Faithful 8:36:00 04:12 8:24 12/23/1974 Old Faithful 9:44:00 1:08:00 04:05 9:36 9:49 12/23/1974 Old Faithful 10:57:00 1:13:00 04:27 10:47 10:56 12/23/1974 Old Faithful 12:03:00 1:06:00 01:44 12:00 12:10 12/23/1974 Old Faithful 12:49:00 0:46:00 ~4 1/2 12:48 12:50 12/23/1974 Old Faithful 14:07:00 1:18:00 01:46 14:01 14:04 12/23/1974 Old Faithful 14:59:00 0:52:00 ~4 1/2 14:44 14:54 12/23/1974 Old Faithful 16:15:00 1:16:00 01:55 16:07 16:14 12/23/1974 Old Faithful 16:58:00 0:43:00 04:44 16:53 17:05 12/23/1974 Old Faithful 18:19:00 1:21:00 02:04 18:14 12/23/1974 Old Faithful 18:59:00 0:40:00 05:04 19:09 12/23/1974 Beehive 11:24:00 ie 12/23/1974 Castle 16:20:00 ie 12/23/1974 Grand 15:35:00 ie 3B 12/23/1974 Lion 10:10:00 ie 12/23/1974 Lion 12:46:00 12/23/1974 Lion 14:58:00 12/24/1974 Old Faithful 8:59:00 04:46 8:51 12/24/1974 Old Faithful 10:14:00 1:15:00 02:05 10:07 10:15 12/24/1974 Old Faithful 11:03:00 0:49:00 04:43 10:57 11:04 12/24/1974 Old Faithful 12:23:00 1:20:00 01:52 12:09 12:19 12/24/1974 Old Faithful 13:04:00 0:41:00 03:42 13:00 13:10 12/24/1974 Old Faithful 14:28:00 1:24:00 02:01 14:20 14:14 12/24/1974 Old Faithful 15:18:00 0:50:00 04:33 15:02 15:18 12/24/1974 Old Faithful 16:30:00 1:12:00 ~02:00 16:27 16:33 12/24/1974 Old Faithful ~17:17:00 ~0:47:00 long 17:20 12/24/1974 Old Faithful 18:38:00 ~1:21:00 03:19 18:33 12/24/1974 Old Faithful 19:41:00 ie ~1:03:00 12/24/1974 Beehive 15:28:00 ie "Lo -30oF,OF,-33oF W.Ent" 12/24/1974 Castle 8:42:00 12/24/1974 Castle 18:35:00 Lo -35oF Lamar 12/24/1974 Riverside 16:09:00 12/24/1974 Spiteful 15:39:00 VR 12/25/1974 Old Faithful 8:56:00 03:53 12/25/1974 Old Faithful 10:11:00 1:15:00 04:20 9:56 10:08 12/25/1974 Old Faithful 11:17:00 1:06:00 03:52 11:16 11:24 12/25/1974 Old Faithful 12:27:00 1:10:00 04:11 12:23 12:27 12/25/1974 Old Faithful 13:32:00 1:05:00 04:00 13:32 13:40 12/25/1974 Old Faithful 14:46:00 1:14:00 03:36 14:46 14:42 12/25/1974 Old Faithful 15:52:00 1:07:00 01:40 15:51 15:56 12/25/1974 Old Faithful 20:50:00 03:56 12/25/1974 Old Faithful 22:06:00 1:16:00 ~3 3/4 12/25/1974 Castle 14:11:00 VR 12/25/1974 Grand 11:47:00 ie 12/25/1974 Lion 15:26:00 12/25/1974 Lone Star 12:58:00 VR 12/25/1974 Riverside 15:30:00 ieVR 12/26/1974 Old Faithful 9:08:00 ~02:00 12/26/1974 Old Faithful 9:57:00 0:49:00 ~4 1/2 9:56 9:58 12/26/1974 Old Faithful 11:21:00 1:24:00 ~1 1/2 10:02 11:12 12/26/1974 Old Faithful 12:05:00 0:44:00 ~4 3/4 12:01 12:06 12/26/1974 Old Faithful 13:26:00 1:21:00 02:01 13:14 13:20 12/26/1974 Old Faithful 14:16:00 0:50:00 04:19 14:14 14:16 12/26/1974 Old Faithful 15:35:00 1:19:00 03:52 15:34 15:30 12/26/1974 Old Faithful 16:40:00 1:05:00 04:05 16:38 16:46 12/26/1974 Old Faithful 17:45:00 1:05:00 03:43 17:52 12/26/1974 Old Faithful 18:50:00 1:05:00 04:03 18:55 12/26/1974 Old Faithful 19:57:00 1:07:00 03:49 20:02 12/26/1974 Old Faithful 21:11:00 1:14:00 01:57 21:07 12/26/1974 Beehive 9:20:00 VR Lo -23oF 12/26/1974 Castle 8:52:00 VR 12/26/1974 Castle 17:36:00 ie 12/26/1974 Depression 12:21:00 12/26/1974 Fan and Mortar 14:48:00 VR 12/26/1974 Riverside 14:16:00 overflow 70m 12/26/1974 Vault 12:06:00 12/26/1974 Vault 13:00:00 12/26/1974 Vault 15:11:00 12/26/1974 Vault 15:57:00 12/27/1974 Old Faithful 8:31:00 ~4 1/4 12/27/1974 Old Faithful 9:39:00 1:08:00 03:22 9:36 9:44 12/27/1974 Old Faithful 10:40:00 1:01:00 04:20 10:48 12/27/1974 Old Faithful 11:57:00 1:17:00 03:38 11:50 11:53 12/27/1974 Old Faithful 13:02:00 1:05:00 02:01 13:07 12/27/1974 Old Faithful 13:55:00 0:53:00 04:50 13:46 13:52 12/27/1974 Old Faithful 15:09:00 1:14:00 02:26 15:06 15:10 12/27/1974 Old Faithful 16:04:00 0:55:00 04:35 15:59 16:01 12/27/1974 Old Faithful 21:45:00 12/27/1974 Beehive 8:31:00 12/27/1974 Castle 10:49:00 start 12/27/1974 Grand 17:05:00 VR end 17:20 12/27/1974 Riverside 13:40:00 12/28/1974 Old Faithful 8:53:00 ~1 1/2 12/28/1974 Old Faithful 9:34:00 0:41:00 04:09 9:34 9:38 12/28/1974 Old Faithful 10:46:00 1:12:00 01:45 10:46 10:47 12/28/1974 Old Faithful 11:41:00 0:55:00 04:32 11:30 11:33 12/28/1974 Old Faithful 12:54:00 1:13:00 02:02 12:56 12/28/1974 Old Faithful 13:46:00 0:52:00 04:10 none 13:44 12/28/1974 Old Faithful 15:05:00 1:19:00 02:20 14:51 14:59 12/28/1974 Old Faithful 16:02:00 0:57:00 04:41 15:49 15:54 12/28/1974 Beehive 10:25:00 Lo -19oF 12/28/1974 Lion 11:06:00 12/28/1974 Riverside 13:35:00 12/29/1974 Old Faithful 8:30:00 ie long 12/29/1974 Old Faithful 9:40:00 ~1:10:00 01:58 9:28 9:35 12/29/1974 Old Faithful 10:23:00 0:43:00 ~03:00 10:30 12/29/1974 Old Faithful 11:40:00 1:17:00 ~2 3/4 11:33 12/29/1974 Old Faithful 12:50:00 1:10:00 01:45 12:44 12:35 12/29/1974 Old Faithful 13:32:00 0:42:00 ~4 1/2 13:39 12/29/1974 Old Faithful 14:51:00 1:19:00 ~02:00 14:47 12/29/1974 Old Faithful 15:35:00 0:44:00 ~04:00 12/29/1974 Beehive 13:19:00 "Lo -24oF,Lamar -31oF" 12/29/1974 Castle 8:30:00 ie 12/29/1974 Castle 16:40:00 12/29/1974 Grand 13:04:00 12/29/1974 Lion 16:25:00 VR 12/29/1974 Penta 15:30:00 VR 12/29/1974 Riverside 13:29:00 12/30/1974 Old Faithful 8:54:00 05:02 12/30/1974 Old Faithful 10:14:00 1:20:00 01:48 10:07 10:10 12/30/1974 Old Faithful 11:00:00 0:46:00 04:29 10:58 11:01 12/30/1974 Old Faithful 12:13:00 1:13:00 ~03:00 12:15 12/30/1974 Old Faithful 13:29:00 1:16:00 04:24 13:12 13:26 12/30/1974 Old Faithful 14:37:00 1:08:00 01:50 14:44 12/30/1974 Old Faithful 15:27:00 0:50:00 04:34 15:23 15:24 12/30/1974 Old Faithful 16:39:00 1:12:00 02:03 16:37 16:42 12/30/1974 Castle 10:55:00 12/30/1974 Castle 20:05:00 12/30/1974 Grand 11:56:00 ie 12/30/1974 Grand 20:12:00 "5B,1st~9m,end~14m" 12/30/1974 Riverside 13:05:00 VR 12/30/1974 Riverside 13:14:00 VR 12/31/1974 Old Faithful 8:16:00 ~4 3/4 12/31/1974 Old Faithful 9:40:00 1:24:00 ~04:00 9:26 ~9:30 12/31/1974 Old Faithful 10:47:00 1:07:00 04:11 10:50 12/31/1974 Old Faithful 11:49:00 1:02:00 ~4 1/4 11:49 12:00 12/31/1974 Old Faithful 12:57:00 1:08:00 long 12:55 13:02 12/31/1974 Old Faithful 14:11:00 1:14:00 01:57 14:05 14:06 12/31/1974 Old Faithful 14:53:00 0:42:00 04:43 14:51 15:01 12/31/1974 Old Faithful 16:11:00 1:18:00 02:06 16:03 16:09 12/31/1974 Old Faithful 17:04:00 0:53:00 04:33 16:56 17:01 12/31/1974 Old Faithful 18:19:00 1:15:00 02:02 18:19 12/31/1974 Castle 14:06:00 "Lo -27oF,Lake -28oF" 12/31/1974 Depression 14:30:00 ie 12/31/1974 Grand 12:14:00 VR 12/31/1974 Lone Star 15:15:00 VR 12/31/1974 Lone Star 18:15:00 VR 12/31/1974 Lone Star 13:23:00 VR 1/1/1975 Old Faithful 6:25:00 02:15 1/1/1975 Old Faithful 8:44:00 02:01 8:42 1/1/1975 Old Faithful 9:39:00 0:55:00 04:18 9:29 9:34 1/1/1975 Old Faithful 10:53:00 1:14:00 02:09 10:47 10:52 1/1/1975 Old Faithful 11:40:00 0:47:00 04:38 11:36 11:45 1/1/1975 Old Faithful 13:06:00 1:26:00 02:03 12:51 12:56 1/1/1975 Old Faithful 13:56:00 0:50:00 04:26 13:46 13:56 1/1/1975 Old Faithful 15:14:00 1:18:00 04:09 15:02 15:11 1/1/1975 Old Faithful 16:26:00 1:12:00 01:53 16:26 1/1/1975 Old Faithful 17:24:00 0:58:00 04:29 17:09 17:16 1/1/1975 Castle 8:40:00 ie Lo-20oF 1/1/1975 Depression 14:15:00 West -29oF 1/1/1975 Dome 11:36:00 ie 1/1/1975 Grand 10:05:00 ie 1/1/1975 North Goggles 12:56:00 ie 1/1/1975 Riverside 12:35:00 1/1/1975 Vault 16:15:00 ie 1/2/1975 Old Faithful 9:04:00 04:42 8:46 1/2/1975 Old Faithful 10:19:00 1:15:00 02:03 10:09 10:20 1/2/1975 Old Faithful 11:16:00 0:57:00 ~4 1/4 11:09 11:08 1/2/1975 Old Faithful 12:40:00 1:24:00 ~4 1/4 12:27 12:29 1/2/1975 Old Faithful 13:45:00 1:05:00 04:08 13:43 13:52 1/2/1975 Old Faithful 14:54:00 1:09:00 04:08 14:52 14:57 1/2/1975 Old Faithful 16:12:00 1:18:00 02:12 16:01 16:07 1/2/1975 Old Faithful 17:01:00 0:49:00 ~4 1/2 17:04 1/2/1975 Brilliant Pool 16:05:00 Lo-10oF 1/2/1975 Dome active pm 1/2/1975 Grand 15:38:00 2B 1/2/1975 Lone Star 12:59:00 1/2/1975 Riverside 11:38:00 1/2/1975 Round 16:23:00 1/2/1975 Splendid 15:44:00 1/3/1975 Old Faithful 10:38:00 ~4 1/4 1/3/1975 Old Faithful 11:57:00 1:19:00 01:50 11:47 11:51 1/3/1975 Old Faithful 12:46:00 0:49:00 ~3 3/4 12:41 12:44 1/3/1975 Old Faithful 13:57:00 1:11:00 01:16 13:53 13:56 1/3/1975 Old Faithful 14:46:00 0:49:00 ~4 1/2 14:43 14:49 1/3/1975 Old Faithful 16:06:00 1:20:00 ~3 15:58 16:01 1/3/1975 Beehive 10:20:00 VR Lo-18oF 1/3/1975 Castle 14:10:00 ie 1/3/1975 Grand 15:48:00 1/3/1975 Lion 10:44:00 1/3/1975 Lion 13:21:00 ie 1/3/1975 Lion 15:57:00 1/3/1975 Riverside 12:02:00 VR 1/4/1975 Old Faithful 9:44:00 01:38 1/4/1975 Old Faithful 10:41:00 0:57:00 04:39 10:35 10:31 1/4/1975 Old Faithful 11:52:00 1:11:00 short 11:49 11:57 1/4/1975 Old Faithful 12:42:00 0:50:00 04:01 12:42 1/4/1975 Old Faithful 14:03:00 1:21:00 01:50 13:54 13:54 1/4/1975 Old Faithful 14:44:00 0:41:00 ~4 14:43 14:52 1/4/1975 Old Faithful 15:58:00 1:14:00 01:56 15:58 15:55 1/4/1975 Old Faithful 16:49:00 0:51:00 04:21 none 16:48 1/4/1975 Beehive 10:20:00 Lo 7oF 1/4/1975 Daisy ~16:00 VR Snowing 1/4/1975 Riverside ~11:05 VR 1/4/1975 Splendid ~16:00 VR 1/5/1975 Old Faithful 8:54:00 02:09 8:41 140' 1/5/1975 Old Faithful 9:45:00 0:51:00 04:40 9:39 9:46 1/5/1975 Old Faithful 11:02:00 1:17:00 02:03 10:54 11:41 1/5/1975 Old Faithful 11:49:00 0:47:00 04:15 11:46 11:52 1/5/1975 Old Faithful 13:05:00 1:16:00 02:02 12:58 13:02 1/5/1975 Old Faithful 14:04:00 0:59:00 ~4 1/2 13:51 13:55 1/5/1975 Old Faithful 15:12:00 1:08:00 03:42 15:19 1/5/1975 Old Faithful 16:26:00 1:14:00 04:27 16:18 16:22 1/5/1975 Old Faithful 17:37:00 1:11:00 02:05 17:36 17:41 1/5/1975 Old Faithful 18:29:00 0:52:00 04:37 18:27 1/5/1975 Beehive 11:55:00 ie Lo-3oF 1/5/1975 Castle 11:59:00 Lake -15oF 1/5/1975 Giantess 14:00:00 end 15:54 1/5/1975 Riverside 11:49:00 1/6/1975 Old Faithful 8:41:00 04:29 1/6/1975 Old Faithful 9:49:00 1:08:00 04:16 9:56 1/6/1975 Old Faithful 11:01:00 1:12:00 03:23 11:02 1/6/1975 Old Faithful 12:00:00 0:59:00 03:57 12:11 1/6/1975 Old Faithful 13:16:00 1:16:00 02:08 13:09 13:12 1/6/1975 Old Faithful 14:13:00 0:57:00 04:41 14:08 1/6/1975 Old Faithful 15:20:00 1:07:00 03:49 15:29 1/6/1975 Old Faithful 16:34:00 1:14:00 04:09 16:26 16:30 1/6/1975 Castle 14:41:00 Lo-11oF Hi24oF 1/6/1975 Riverside ~10:30 High 24oF 1/7/1975 Old Faithful 8:59:00 04:21 none 1/7/1975 Old Faithful 10:19:00 1:20:00 01:52 10:09 10:12 1/7/1975 Old Faithful 11:06:00 0:47:00 03:50 11:02 11:06 1/7/1975 Old Faithful 12:16:00 1:10:00 03:55 12:15 12:16 1/7/1975 Old Faithful 13:29:00 1:13:00 02:01 13:20 13:28 1/7/1975 Old Faithful 14:23:00 0:54:00 04:27 14:15 14:19 1/7/1975 Old Faithful 15:37:00 1:14:00 02:38 15:36 15:38 1/7/1975 Old Faithful 16:38:00 1:01:00 04:34 16:29 16:32 1/7/1975 Castle 8:31:00 Lo 3oF 1/7/1975 Daisy last night? 1/7/1975 Daisy 11:00:00 1/7/1975 Oblong 11:10:00 1/7/1975 Riverside 10:00:00 VR 1/7/1975 Round 16:15:00 1/7/1975 Splendid 11:00:00 1/7/1975 Splendid last night? 1/8/1975 Old Faithful 8:33:00 04:11 8:26 1/8/1975 Old Faithful 9:38:00 1:05:00 03:38 9:46 1/8/1975 Old Faithful 10:54:00 1:16:00 04:03 10:46 10:48 1/8/1975 Old Faithful 12:13:00 1:19:00 01:55 12:02 12:06 1/8/1975 Old Faithful 12:55:00 0:42:00 ~4 3/4 12:54 12:55 1/8/1975 Old Faithful 14:09:00 1:14:00 03:35 14:10 1/8/1975 Old Faithful 15:16:00 1:07:00 04:36 15:11 15:19 1/8/1975 Old Faithful 16:22:00 1:06:00 ~3 1/4 16:31 1/8/1975 Old Faithful 17:34:00 1:12:00 03:56 17:28 17:32 1/8/1975 Old Faithful 18:46:00 1:12:00 02:07 18:46 1/8/1975 Brilliant Pool 16:43:00 Low -2oF 1/8/1975 Brilliant Pool 16:45:00 1/8/1975 Castle 11:17:00 1/8/1975 Dome 9:00:00 active 1/8/1975 Grand 10:35:00 4B 11m21s 1/8/1975 Grand 17:55:00 ie 1/8/1975 Lion 9:10:00 ie 1/8/1975 Lion 15:38:00 ie 1/8/1975 Minor 10:11:00 no typo 1/8/1975 Riverside 9:58:00 1/8/1975 Splendid 16:24:00 "BP29:45""" 1/9/1975 Old Faithful 11:26:00 04:33 11:15 1/9/1975 Old Faithful 12:38:00 1:12:00 ~4 1/4 12:36 12:41 1/9/1975 Old Faithful 13:52:00 1:14:00 ~4 13:41 13:48 1/9/1975 Old Faithful 15:04:00 1:12:00 04:01 15:00 15:02 1/9/1975 Old Faithful 16:17:00 1:13:00 04:11 16:08 16:16 1/9/1975 Old Faithful 17:28:00 1:11:00 17:26 17:30 1/9/1975 Castle 14:10:00 Lo -13oF 1/9/1975 Daisy 10:26:00 both at night? 1/9/1975 Grand 10:06:00 4B D~13m 1/9/1975 Lone Star 13:38:00 ie water 1/9/1975 Riverside 10:00:00 ie Lamar -25oF 1/10/1975 Old Faithful 9:29:00 04:11 9:23 1/10/1975 Old Faithful 10:38:00 1:09:00 01:58 10:33 10:42 1/10/1975 Old Faithful 11:25:00 0:47:00 04:15 11:24 11:26 1/10/1975 Old Faithful 12:42:00 1:17:00 01:56 12:35 12:38 1/10/1975 Old Faithful 13:30:00 0:48:00 04:41 13:30 1/10/1975 Old Faithful 14:46:00 1:16:00 02:21 14:44 14:46 1/10/1975 Old Faithful 15:39:00 0:53:00 ~4 3/4 15:39 15:38 1/10/1975 Old Faithful 16:58:00 1:19:00 02:03 16:48 16:55 1/10/1975 Old Faithful 17:47:00 0:49:00 04:59 17:48 1/10/1975 Beehive 13:27:00 ie Lo 1oF 1/10/1975 Castle 8:30:00 ie 1/10/1975 Castle 17:35:00 ie 1/10/1975 Vent 11:07:00 ie 1/11/1975 Old Faithful 8:56:00 02:46 1/11/1975 Old Faithful 10:02:00 1:06:00 ~2 1/4 9:57 9:51 1/11/1975 Old Faithful 10:46:00 0:44:00 long 10:54 1/11/1975 Old Faithful 12:07:00 1:21:00 01:44 11:58 12:00 1/11/1975 Old Faithful 12:51:00 0:44:00 04:13 12:54 1/11/1975 Old Faithful 14:04:00 1:13:00 03:54 14:02 14:04 1/11/1975 Old Faithful 15:09:00 1:05:00 01:42 15:09 15:16 1/11/1975 Old Faithful 15:58:00 0:49:00 04:50 ~15:48 15:56 1/11/1975 Lion 13:12:00 Lo-25oF 1/11/1975 Lion 15:06:00 1/11/1975 Round 11:55:00 1/12/1975 Old Faithful 8:56:00 long 1/12/1975 Old Faithful 10:07:00 1:11:00 02:06 10:06 10:06 1/12/1975 Old Faithful 11:08:00 1:01:00 long?steam 10:53 10:57 1/12/1975 Old Faithful 12:27:00 1:19:00 02:33 12:15 12:20 1/12/1975 Old Faithful 13:21:00 0:54:00 04:49 13:16 13:19 1/12/1975 Old Faithful 14:35:00 1:14:00 02:45 14:34 14:37 1/12/1975 Old Faithful 15:33:00 0:58:00 04:37 15:27 15:30 1/12/1975 Castle 15:02:00 Lo-37oF 1/12/1975 Lake -42oF 1/12/1975 10:57coyoteOF 1/13/1975 Old Faithful 9:38:00 long 1/13/1975 Old Faithful 10:59:00 1:21:00 01:50 10:47 10:54 1/13/1975 Old Faithful 11:39:00 0:40:00 04:19 none 11:46 1/13/1975 Old Faithful 12:50:00 1:11:00 03:21 none 12:52 1/13/1975 Old Faithful 14:00:00 1:10:00 02:01 13:52 14:00 1/13/1975 Old Faithful 15:03:00 1:03:00 04:31 14:47 14:50 1/13/1975 Old Faithful 16:21:00 1:18:00 02:03 16:19 16:18 1/13/1975 Old Faithful 17:11:00 0:50:00 04:14 17:09 17:11 1/13/1975 Old Faithful 18:21:00 1:10:00 03:46 18:24 1/13/1975 Old Faithful 19:37:00 1:16:00 01:59 19:31 1/13/1975 Old Faithful 20:19:00 0:42:00 04:53 20:27 1/13/1975 Old Faithful ~21:48 1/13/1975 Lo 6oF 1/14/1975 Old Faithful 9:44:00 03:37 9:42 1/14/1975 Old Faithful 10:49:00 1:05:00 04:07 10:48 10:54 1/14/1975 Old Faithful 12:06:00 1:17:00 01:53 11:56 12:02 1/14/1975 Old Faithful 12:59:00 0:53:00 04:19 12:49 12:56 1/14/1975 Old Faithful 14:25:00 1:26:00 01:42 14:12 14:12 1/14/1975 Old Faithful 15:07:00 0:42:00 04:06 15:06 15:12 1/14/1975 Old Faithful 16:34:00 1:27:00 01:54 16:17 16:19 1/14/1975 Old Faithful 17:23:00 0:49:00 04:48 17:24 1/14/1975 Beehive 13:49:00 d=4m59s 1/14/1975 Beehive's Indicator 13:39:00 ie Lo 10oF 1/14/1975 Castle 17:08:00 ie 13:26OF9d1b 1/14/1975 Depression 13:53:00 1/14/1975 Riverside 15:35:00 VR 1/14/1975 Round 17:13:00 1/15/1975 Old Faithful 9:29:00 03:35 9:21 1/15/1975 Old Faithful 10:33:00 1:04:00 04:05 10:39 1/15/1975 Old Faithful 11:42:00 1:09:00 02:22 11:41 11:45 1/15/1975 Old Faithful 12:37:00 0:55:00 04:27 12:37 12:34 1/15/1975 Old Faithful 13:55:00 1:18:00 01:53 13:52 1/15/1975 Old Faithful 14:50:00 0:55:00 04:37 14:36 14:45 1/15/1975 Old Faithful 15:59:00 1:09:00 04:03 15:58 16:05 1/15/1975 Old Faithful 17:07:00 1:08:00 long 17:11 1/15/1975 Beehive 18:47:00 ie Lo4oF Hi32oF 1/15/1975 Castle 10:37:00 ie Hi 32oF 1/15/1975 Depression 11:08:00 ie 1/15/1975 Grand 16:20:00 1/15/1975 Lone Star 11:20:00 "3m,P15m,20m" 1/15/1975 Lone Star 11:38:00 1/16/1975 Old Faithful 8:59:00 01:43 1/16/1975 Old Faithful 9:44:00 0:45:00 04:44 9:39 9:46 1/16/1975 Old Faithful 11:02:00 1:18:00 01:56 10:56 11:00 1/16/1975 Old Faithful 11:49:00 0:47:00 04:31 11:46 11:52 1/16/1975 Old Faithful 13:08:00 1:19:00 ~4 12:58 13:04 1/16/1975 Old Faithful 14:13:00 1:05:00 02:44 14:20 1/16/1975 Old Faithful 15:26:00 1:13:00 01:54 15:14 15:08 1/16/1975 Old Faithful 16:10:00 0:44:00 04:36 16:06 16:16 1/16/1975 Old Faithful 17:26:00 1:16:00 01:51 15:26 17:25 1/16/1975 Castle 13:50:00 VR 1/16/1975 Grand 15:21:00 "2B,#2=47s" 1/17/1975 Old Faithful 10:44:00 01:47 10:36 1/17/1975 Old Faithful 11:28:00 0:44:00 03:50 11:31 1/17/1975 Old Faithful 12:44:00 1:16:00 01:48 none 12:40 1/17/1975 Old Faithful 13:31:00 0:47:00 02:01 13:31 13:31 1/17/1975 Old Faithful 14:23:00 0:52:00 04:31 14:17 14:21 1/17/1975 Old Faithful 15:34:00 1:11:00 03:50 15:33 15:38 1/17/1975 Old Faithful 16:41:00 1:07:00 16:44 1/17/1975 Beehive 11:20:00 d=5m14s 1/18/1975 Old Faithful 9:26:00 04:26 9:25 1/18/1975 Old Faithful 10:50:00 1:24:00 01:48 none 10:40 1/18/1975 Old Faithful 11:34:00 0:44:00 04:40 11:31 11:37 1/18/1975 Old Faithful 12:50:00 1:16:00 01:59 12:46 12:50 1/18/1975 Old Faithful 13:36:00 0:46:00 02:32 none 13:40 1/18/1975 Old Faithful 14:32:00 0:56:00 05:02 14:23 14:28 1/18/1975 Old Faithful 15:51:00 1:19:00 01:44 15:44 15:48 1/18/1975 Old Faithful 16:33:00 0:42:00 03:34 16:38 1/18/1975 Old Faithful 22:08:00 17:43 1/18/1975 Castle 14:02:00 ie 1/18/1975 Fountain 15:24:00 1/18/1975 Grand 14:24:00 1/18/1975 Great Fountain 15:39:00 ie 1/19/1975 Old Faithful 9:46:00 long 9:43 1/19/1975 Old Faithful 10:55:00 1:09:00 01:48 10:58 1/19/1975 Old Faithful 11:53:00 0:58:00 04:28 11:38 11:42 1/19/1975 Old Faithful 13:06:00 1:13:00 01:44 13:00 13:08 1/19/1975 Old Faithful 13:56:00 0:50:00 04:36 13:54 13:53 1/19/1975 Old Faithful 15:17:00 1:21:00 02:35 15:14 1/19/1975 Old Faithful 16:06:00 0:49:00 04:13 16:06 1/19/1975 Old Faithful 17:21:00 1:15:00 03:09 17:17 17:19 1/19/1975 Vault active pm 1/19/1975 Lo OF-1oF 1/20/1975 Old Faithful 9:10:00 04:16 9:04 1/20/1975 Old Faithful 10:24:00 1:14:00 ~3 1/2 10:19 10:23 1/20/1975 Old Faithful 11:41:00 1:17:00 02:09 11:28 11:34 1/20/1975 Old Faithful 12:27:00 0:46:00 03:54 12:20 12:33 1/20/1975 Old Faithful 13:44:00 1:17:00 02:08 13:39 13:39 1/20/1975 Old Faithful 14:31:00 0:47:00 04:39 14:28 14:35 1/20/1975 Old Faithful 15:50:00 1:19:00 01:52 15:48 15:47 1/20/1975 Old Faithful 16:36:00 0:46:00 04:33 16:33 16:37 1/20/1975 Old Faithful 17:50:00 1:14:00 ~1 1/2 17:51 1/20/1975 Old Faithful 18:34:00 0:44:00 04:36 18:33 18:35 1/20/1975 Old Faithful 19:48:00 1:14:00 long 19:49 1/20/1975 Old Faithful 21:01:00 1:13:00 01:55 20:48 21:00 1/20/1975 Beehive 9:18:00 d=5m13s 1/20/1975 Castle 13:28:00 ie 1/20/1975 Dome 8:40:00 1/20/1975 Dome 9:06:00 1/20/1975 Dome 9:37:00 1/20/1975 Dome ~10:00 1/20/1975 Dome 10:31:00 1/20/1975 Dome 11:32:00 1/20/1975 Fountain 12:15:00 1/20/1975 Giantess "7-8ft,minor" 1/20/1975 Grand 10:44:00 ie 1/20/1975 Spiteful 13:51:00 1/20/1975 Vault drained 1/21/1975 Old Faithful 9:07:00 04:35 9:04 1/21/1975 Old Faithful 10:23:00 1:16:00 01:58 10:22 10:22 1/21/1975 Old Faithful 11:24:00 1:01:00 04:16 11:12 11:12 1/21/1975 Old Faithful 12:31:00 1:07:00 01:40 12:30 12:37 1/21/1975 Old Faithful 13:23:00 0:52:00 ~3 1/2 13:16 1/21/1975 Old Faithful 14:50:00 1:27:00 02:00 14:33 150-160' 14:33 1/21/1975 Old Faithful 15:36:00 0:46:00 04:20 15:30 15:40 1/21/1975 Old Faithful 16:51:00 1:15:00 01:59 16:44 16:49 1/21/1975 Old Faithful 17:46:00 0:55:00 ~04:44 17:39 17:41 1/21/1975 Beehive 9:54:00 Lo13oF 1/21/1975 Castle 8:25:00 ie 1/21/1975 Castle 16:33:00 ie 1/21/1975 Daisy 15:15:00 ie 1/21/1975 Grand 9:17:00 ie 1/21/1975 Grand 16:33:00 ie 1/21/1975 Lion 9:11:00 ie 1/21/1975 Lion 13:55:00 ie 1/21/1975 Round 9:25:00 1/21/1975 Round 17:55:00 1/21/1975 Splendid 15:15:00 ie 1/22/1975 Old Faithful 10:59:00 04:23 10:51 1/22/1975 Old Faithful 12:12:00 1:13:00 01:54 12:03 12:14 1/22/1975 Old Faithful 13:02:00 0:50:00 04:47 12:52 13:02 1/22/1975 Old Faithful 14:17:00 1:15:00 03:58 14:10 14:18 1/22/1975 Old Faithful 15:27:00 1:10:00 01:57 15:23 15:29 1/22/1975 Old Faithful 16:28:00 1:01:00 04:31 16:10 16:17 1/22/1975 Old Faithful 17:40:00 1:12:00 03:17 17:43 1/22/1975 Old Faithful 18:44:00 1:04:00 ~2 18:50 1/22/1975 Old Faithful 19:42:00 0:58:00 04:13 19:34 1/22/1975 Old Faithful 21:08:00 1:26:00 01:56 20:55 1/22/1975 Beehive 12:01:00 ie 1/22/1975 Grand 16:07:00 ie 1/22/1975 Plume 12:21:00 1/22/1975 Plume 13:06:00 1/22/1975 Plume 13:32:00 1/22/1975 Plume 14:21:00 1/22/1975 Plume 15:56:00 1/22/1975 Riverside 11:23:00 VR 1/23/1975 Old Faithful 10:07:00 04:14 9:53 1/23/1975 Old Faithful 11:31:00 1:24:00 04:13 11:27 11:20 1/23/1975 Old Faithful 12:42:00 1:11:00 04:03 12:33 12:43 1/23/1975 Old Faithful 13:50:00 1:08:00 ~4 13:45 13:54 1/23/1975 Old Faithful 14:54:00 1:04:00 04:12 14:53 15:02 1/23/1975 Old Faithful 16:01:00 1:07:00 04:09 15:53 16:07 1/23/1975 Beehive 13:30:00 ie 1/23/1975 Castle 11:46:00 1/23/1975 Riverside 11:01:00 d=21 1/24/1975 Old Faithful 11:06:00 ~4 1/4 1/24/1975 Old Faithful 12:27:00 1:21:00 02:01 12:16 12:19 1/24/1975 Old Faithful 13:17:00 0:50:00 04:02 13:17 1/24/1975 Old Faithful 14:24:00 1:07:00 02:44 14:29 1/24/1975 Old Faithful 15:32:00 1:08:00 04:40 15:31 15:19 1/24/1975 Old Faithful 16:40:00 1:08:00 long 16:48 1/24/1975 Castle 14:50:00 ie 1/24/1975 Daisy 16:10:00 1/24/1975 Grand 13:22:00 ie 1/24/1975 Riverside 11:12:00 1/24/1975 Splendid 16:10:00 1/25/1975 Old Faithful 9:21:00 ~4 9:20 1/25/1975 Old Faithful 10:29:00 1:08:00 01:50 10:28 10:33 1/25/1975 Old Faithful 11:14:00 0:45:00 04:11 11:08 11:16 1/25/1975 Old Faithful 12:27:00 1:13:00 04:03 12:26 12:26 1/25/1975 Old Faithful 13:34:00 1:07:00 03:17 none 13:39 1/25/1975 Old Faithful 14:37:00 1:03:00 04:07 14:33 14:44 1/25/1975 Old Faithful 15:50:00 1:13:00 04:06 15:42 15:49 1/25/1975 Fountain several/hour 1/25/1975 Grand 10:26:00 ie 1/25/1975 Lion 10:23:00 ie 1/25/1975 Lion 14:04:00 ie 1/25/1975 Oblong 11:50:00 ie 1/25/1975 Riverside 10:32:00 1/26/1975 Old Faithful 8:52:00 ~4 1/4 1/26/1975 Old Faithful 10:00:00 1:08:00 02:06 9:59 10:05 1/26/1975 Old Faithful 10:49:00 0:49:00 04:46 10:43 10:50 1/26/1975 Old Faithful 12:06:00 1:17:00 01:50 12:00 12:05 1/26/1975 Old Faithful 12:49:00 0:43:00 02:40? 12:49 12:53 1/26/1975 Old Faithful 14:08:00 1:19:00 01:49 14:00 13:44 1/26/1975 Old Faithful 15:02:00 0:54:00 long 14:54 1/26/1975 Old Faithful 16:18:00 1:16:00 01:59 16:09 16:17 1/26/1975 Old Faithful 17:06:00 0:48:00 04:36 17:00 17:08 1/26/1975 Dome 9:21:00 ie gusts 35mph 1/26/1975 Dome 11:34:00 ie heavy snow 1/26/1975 Vault 9:31:00 1/27/1975 Old Faithful 9:20:00 02:21 9:15 1/27/1975 Old Faithful 10:08:00 0:48:00 04:49 10:07 10:12 1/27/1975 Old Faithful 11:31:00 1:23:00 02:03 11:18 11:24 1/27/1975 Old Faithful 12:15:00 0:44:00 05:12 12:21 1/27/1975 Old Faithful 13:34:00 1:19:00 01:49 13:18 13:31 1/27/1975 Old Faithful 14:26:00 0:52:00 ~4 1/2 14:19 14:21 1/27/1975 Old Faithful 15:46:00 1:20:00 ~3 1/2 15:44 15:41 1/27/1975 Old Faithful 19:21:00 ~4 1/4 1/27/1975 Old Faithful 20:31:00 1:10:00 01:49 20:29 20:34 1/27/1975 Old Faithful 21:30:00 0:59:00 05:09 21:18 1/27/1975 Old Faithful 22:49:00 1:19:00 22:46 1/27/1975 Castle 13:50:00 1/27/1975 Castle 21:37:00 ie 1/27/1975 Grand 12:47:00 3B 1/27/1975 Grotto Fountain 13:47:00 1/28/1975 Old Faithful 8:01:00 long 1/28/1975 Old Faithful 9:11:00 1:10:00 02:01 9:10 1/28/1975 Old Faithful 9:57:00 0:46:00 04:51 9:55 10:01 1/28/1975 Old Faithful 11:19:00 1:22:00 04:02 11:11 11:13 1/28/1975 Old Faithful 12:25:00 1:06:00 04:09 12:22 12:31 1/28/1975 Old Faithful 13:41:00 1:16:00 04:14 13:26 13:38 1/28/1975 Old Faithful 14:47:00 1:06:00 04:15 14:46 14:44 1/28/1975 Old Faithful 15:56:00 1:09:00 02:04 15:55 16:00 1/28/1975 Old Faithful 16:56:00 1:00:00 04:31 16:43 16:47 1/28/1975 Castle 10:14:00 Lo-28oF 1/28/1975 Grand 13:17:00 Lamar -36oF 1/29/1975 Old Faithful 9:38:00 02:27 9:27 1/29/1975 Old Faithful 10:33:00 0:55:00 04:34 10:24 10:26 1/29/1975 Old Faithful 11:55:00 1:22:00 02:08 11:41 11:48 1/29/1975 Old Faithful 12:43:00 0:48:00 04:10 12:38 12:46 1/29/1975 Old Faithful 14:05:00 1:22:00 01:57 13:53 13:59 1/29/1975 Old Faithful 14:49:00 0:44:00 ~4 1/2 14:55 1/29/1975 Old Faithful 16:02:00 1:13:00 ~3 1/4 none 16:04 1/29/1975 Old Faithful 16:59:00 0:57:00 04:23 1/29/1975 Beehive 15:38:00 Lo-13oF 1/29/1975 Riverside 15:00:00 ieVR 1/30/1975 Old Faithful 9:18:00 ~2 9:11 1/30/1975 Old Faithful 10:21:00 1:03:00 04:51 10:04 10:08 1/30/1975 Old Faithful 11:34:00 1:13:00 01:49 11:31 11:37 1/30/1975 Old Faithful 12:24:00 0:50:00 04:40 12:20 12:21 1/30/1975 Old Faithful 13:34:00 1:10:00 03:36 13:40 1/30/1975 Old Faithful 14:50:00 1:16:00 02:06 14:35 14:44 1/30/1975 Old Faithful 15:34:00 0:44:00 04:25 15:33 15:40 1/30/1975 Beehive 14:01:00 1/30/1975 Castle 7:30:00 VR 1/31/1975 Old Faithful 9:02:00 04:25 9:01 1/31/1975 Old Faithful 10:23:00 1:21:00 03:57 10:15 10:16 1/31/1975 Old Faithful 11:32:00 1:09:00 04:02 11:30 11:34 1/31/1975 Old Faithful 12:44:00 1:12:00 ~2 12:35 12:44 1/31/1975 Old Faithful 13:29:00 0:45:00 ~4 1/2 13:27 1:31 1/31/1975 Old Faithful 14:44:00 1:15:00 01:56 14:41 14:44 1/31/1975 Old Faithful 15:34:00 0:50:00 04:18 15:28 15:34 1/31/1975 Old Faithful 16:49:00 1:15:00 ~2 16:46 16:47 1/31/1975 Beehive 14:01:00 1/31/1975 Grand 14:31:00 2/1/1975 Old Faithful 9:23:00 02:50 9:19 2/1/1975 Old Faithful 10:07:00 0:44:00 ~4 10:18 2/1/1975 Old Faithful 11:23:00 1:16:00 03:15 11:22 11:20 2/1/1975 Old Faithful 12:23:00 1:00:00 04:13 12:23 12:26 2/1/1975 Old Faithful 13:41:00 1:18:00 01:47 13:31 13:34 2/1/1975 Old Faithful 14:34:00 0:53:00 04:50 14:26 14:31 2/1/1975 Old Faithful 15:49:00 1:15:00 01:40 15:42 15:50 2/1/1975 Old Faithful 16:36:00 0:47:00 ~4 1/2 16:33 16:36 2/1/1975 Old Faithful 18:00:00 1:24:00 01:50 none 17:51 2/2/1975 Old Faithful 8:42:00 long 2/2/1975 Old Faithful 9:50:00 1:08:00 03:54 9:50 9:52 2/2/1975 Old Faithful 11:00:00 1:10:00 01:48 10:59 11:02 2/2/1975 Old Faithful 11:51:00 0:51:00 04:37 11:43 11:47 2/2/1975 Old Faithful 13:03:00 1:12:00 03:33 13:01 13:06 2/2/1975 Old Faithful 14:17:00 1:14:00 04:06 14:10 14:13 2/2/1975 Old Faithful 15:20:00 1:03:00 ~3 1/2 15:25 2/2/1975 Old Faithful 16:27:00 1:07:00 04:07 16:23 16:30 2/3/1975 Old Faithful 10:02:00 04:11 9:46 2/3/1975 Old Faithful 11:10:00 1:08:00 01:37 11:05 11:15 2/3/1975 Old Faithful 12:08:00 0:58:00 ~4 1/2 11:54 11:55 2/3/1975 Old Faithful 13:20:00 1:12:00 01:47 13:14 13:23 2/3/1975 Old Faithful 14:06:00 0:46:00 04:41 14:00 14:07 2/3/1975 Old Faithful 15:16:00 1:10:00 04:07 15:16 15:22 2/3/1975 Old Faithful 16:26:00 1:10:00 04:17 16:22 16:28 2/3/1975 Old Faithful 18:44:00 04:28 18:48 2/3/1975 Old Faithful 19:56:00 1:12:00 02:09 19:58 2/3/1975 Beehive 14:43:00 d=5m11s 2/3/1975 Grand 14:46:00 ie 4B/ Hi 27oF 2/4/1975 Old Faithful 9:02:00 02:07 8:58 2/4/1975 Old Faithful 9:54:00 0:52:00 ~4 1/2 9:43 9:52 2/4/1975 Old Faithful 11:15:00 1:21:00 01:59 11:02 11:07 2/4/1975 Old Faithful 12:02:00 0:47:00 ~4 1/2 11:51 12:05 2/4/1975 Old Faithful 13:14:00 1:12:00 01:46 13:13 13:17 2/4/1975 Old Faithful 13:58:00 0:44:00 04:16 13:51 14:01 2/4/1975 Old Faithful 15:20:00 1:22:00 03:56 15:12 15:11 2/4/1975 Old Faithful 17:39:00 03:59 2/4/1975 Castle 13:10:00 ie water 2/4/1975 Dome 12:07:00 Lo -8oF 2/4/1975 Dome 15:06:00 ie 2/4/1975 Grand 11:39:00 ie 2/4/1975 Lion 14:19:00 ie 2/4/1975 Vault 12:01:00 2/5/1975 Old Faithful 8:51:00 03:47 8:42 2/5/1975 Old Faithful 9:56:00 1:05:00 ~4 1/4 9:56 10:01 2/5/1975 Old Faithful 11:09:00 1:13:00 01:58 11:05 11:10 2/5/1975 Old Faithful 12:04:00 0:55:00 ~4 1/2 11:52 12:00 2/5/1975 Old Faithful 13:11:00 1:07:00 04:05 13:10 13:19 2/5/1975 Old Faithful 14:20:00 1:09:00 ~2 1/2 14:19 14:23 2/5/1975 Old Faithful 15:14:00 0:54:00 04:46 15:11 15:12 2/5/1975 Old Faithful 18:19:00 04:24 2/5/1975 Castle 8:30:00 ie 2/5/1975 Castle 17:40:00 VR 2/5/1975 Daisy 9:18:00 2/5/1975 Daisy 17:15:00 VR 2/5/1975 Depression 11:27:00 ie 2/5/1975 Fountain 15:08:00 surging 10' 2/5/1975 Grand 10:15:00 3B 2/5/1975 Grotto Fountain 11:28:00 ie 2/5/1975 Lion 9:08:00 ie 2/5/1975 Lion 14:47:00 2/5/1975 Riverside 10:41:00 2/5/1975 Splendid 17:15:00 VR 2/5/1975 Vault 9:04:00 ie 2/6/1975 Old Faithful 8:59:00 04:41 8:56 2/6/1975 Old Faithful 10:11:00 1:12:00 04:03 10:08 10:15 2/6/1975 Old Faithful 11:20:00 1:09:00 04:19 11:14 11:23 2/6/1975 Old Faithful 12:32:00 1:12:00 04:04 12:25 12:32 2/6/1975 Old Faithful 13:50:00 1:18:00 04:14 13:35 13:44 2/6/1975 Old Faithful 15:04:00 1:14:00 01:48 15:02 15:03 2/6/1975 Old Faithful 15:49:00 0:45:00 ~4 1/2 15:52 2/6/1975 Beehive 11:20:00 2/6/1975 Castle 11:54:00 2/6/1975 Cliff 10:35:00 2/6/1975 Grand 9:10:00 ie 2/6/1975 Riverside 3:45:00 VR 2/6/1975 Riverside 10:16:00 VR 2/7/1975 Old Faithful 9:04:00 02:33 9:04 2/7/1975 Old Faithful 10:02:00 0:58:00 04:35 9:49 9:56 2/7/1975 Old Faithful 11:18:00 1:16:00 ~2 11:10 11:17 2/7/1975 Old Faithful 12:10:00 0:52:00 04:25 12:07 12:08 2/7/1975 Old Faithful 13:24:00 1:14:00 ~2 1/2 13:20 13:24 2/7/1975 Old Faithful 14:26:00 1:02:00 04:25 14:07 14:16 2/7/1975 Old Faithful 15:38:00 1:12:00 04:04 15:37 15:40 2/7/1975 OF Lo 4oF 2/7/1975 Madison -26oF 2/8/1975 Old Faithful 9:36:00 01:48 9:27 2/8/1975 Old Faithful 10:37:00 1:01:00 04:40 10:16 10:23 2/8/1975 Old Faithful 11:57:00 1:20:00 01:58 11:46 11:53 2/8/1975 Old Faithful 12:50:00 0:53:00 ~4 1/2 12:41 12:47 2/8/1975 Old Faithful 14:00:00 1:10:00 01:47 none 14:05 2/8/1975 Old Faithful 14:54:00 0:54:00 05:08 14:39 14:47 2/8/1975 Old Faithful 16:08:00 1:14:00 ~2 15:59 16:10 2/8/1975 Grand 12:50:00 ie 2/8/1975 Round 10:18:00 2/9/1975 Old Faithful 9:27:00 ~4 1/2 9:19 2/9/1975 Old Faithful 10:32:00 1:05:00 ~ 3 1/2 10:32 10:42 2/9/1975 Old Faithful 11:30:00 0:58:00 long 11:30 11:42 2/9/1975 Old Faithful 12:47:00 1:17:00 01:59 12:46 12:42 2/9/1975 Old Faithful 13:39:00 0:52:00 ~4 1/2 13:34 13:37 2/9/1975 Old Faithful 14:58:00 1:19:00 04:12 14:50 14:54 2/9/1975 Old Faithful 16:02:00 1:04:00 ~4 none 16:11 2/9/1975 Old Faithful 18:04:00 04:25 18:01 2/9/1975 Dome active/ Lo -8oF 2/9/1975 Vault active/ Hi 34oF 2/10/1975 Old Faithful 9:34:00 02:37 9:21 2/10/1975 Old Faithful 10:39:00 1:05:00 04:43 10:20 10:26 2/10/1975 Old Faithful 11:59:00 1:20:00 02:41 11:44 11:54 2/10/1975 Old Faithful 12:54:00 0:55:00 04:17 12:50 12:54 2/10/1975 Old Faithful 14:10:00 1:16:00 02:11 14:07 2/10/1975 Old Faithful 14:57:00 0:47:00 04:41 14:56 15:02 2/10/1975 Old Faithful 16:13:00 1:16:00 02:00 16:06 16:13 2/10/1975 Castle 14:05:00 ie Lo 23oF 2/10/1975 Grand 16:11:00 ie 2/10/1975 Lion 9:25:00 VR 2/10/1975 Lion 10:46:00 d=3m24s 2/10/1975 Lion 12:33:00 2/10/1975 Lion 15:28:00 ie 2/10/1975 Riverside 12:32:00 VR 2/10/1975 Round 15:20:00 2/11/1975 Old Faithful 9:43:00 ~1:10 02:02 9:43 2/11/1975 Old Faithful 10:31:00 0:48:00 04:36 10:33 2/11/1975 Old Faithful 11:45:00 1:14:00 01:48 11:41 11:46 2/11/1975 Old Faithful 12:34:00 0:49:00 04:31 12:31 12:32 2/11/1975 Old Faithful 13:54:00 1:20:00 ~2 13:43 13:49 2/11/1975 Old Faithful 14:46:00 0:52:00 14:42 14:43 2/11/1975 Old Faithful 16:03:00 1:17:00 01:52 15:53 15:59 2/11/1975 Beehive 9:42:00 ie 2/11/1975 Leather Pool blue/chng yel-br 2/11/1975 Lion 9:29:00 ie 2/11/1975 Lion 11:45:00 2/11/1975 Lion 14:08:00 ie 2/11/1975 Lion 14:10:00 ie 2/11/1975 Grotto Fountain 11:32:00 2/11/1975 South Grotto Fountain 11:32:00 2/12/1975 Old Faithful 8:52:00 01:50 8:50 2/12/1975 Old Faithful 9:50:00 0:58:00 04:38 9:35 9:40 2/12/1975 Old Faithful 11:17:00 1:27:00 01:52 11:10 11:06 2/12/1975 Old Faithful 12:06:00 0:49:00 04:41 11:59 12:04 2/12/1975 Old Faithful 13:15:00 1:09:00 01:56 13:14 13:22 2/12/1975 Old Faithful 14:05:00 0:50:00 04:25 14:04 14:05 2/12/1975 Old Faithful 15:15:00 1:10:00 01:55 15:15 15:20 2/12/1975 Old Faithful 16:02:00 0:47:00 04:33 16:00 16:05 2/12/1975 Lone Star 14:12:00 2/12/1975 Riverside 13:45:00 ieVR 2/13/1975 Old Faithful 9:32:00 02:18 9:30 2/13/1975 Old Faithful 10:15:00 0:43:00 long 10:24 2/13/1975 Old Faithful 11:37:00 1:22:00 01:44 11:32 11:30 2/13/1975 Old Faithful 12:20:00 0:43:00 ~4 1/4 12:24 2/13/1975 Old Faithful 13:32:00 1:12:00 01:54 13:32 13:33 2/13/1975 Old Faithful 14:22:00 0:50:00 04:25 14:22 14:22 2/13/1975 Old Faithful 15:38:00 1:16:00 02:01 15:34 15:37 2/13/1975 Old Faithful 16:23:00 0:45:00 ~4 1/4 16:28 2/13/1975 Old Faithful 2tremors~14:39 2/13/1975 OF Govt.Ar/Geys.Hill felt tremors 2/13/1975 South Entrance heard by ranger 2/13/1975 Red Spouter ovfl caused LP 2/13/1975 Leather Pool color change 2/14/1975 Old Faithful 8:16:00 ~1 3/4 2/14/1975 Old Faithful 8:57:00 0:41:00 ~4 1/2 9:02 2/14/1975 Old Faithful 10:15:00 1:18:00 03:47 10:05 10:12 2/14/1975 Old Faithful 11:18:00 1:03:00 04:32 11:25 2/14/1975 Old Faithful 12:29:00 1:11:00 03:56 12:26 12:33 2/14/1975 Old Faithful 13:47:00 1:18:00 03:46 13:27 13:41 2/14/1975 Old Faithful 14:59:00 1:12:00 02:09 14:51 14:57 2/14/1975 Old Faithful 15:45:00 0:46:00 ~4 3/4 15:51 2/14/1975 Old Faithful 17:11:00 1:26:00 01:52 16:57 17:01 2/14/1975 Old Faithful 18:01:00 0:50:00 04:57 17:52 17:58 2/14/1975 Old Faithful 19:18:00 1:17:00 01:51 19:11 19:17 2/14/1975 Old Faithful 20:06:00 0:48:00 04:29 20:00 20:05 2/14/1975 Castle 8:00:00 ie 2/14/1975 Riverside 11:36:00 VR d=25m 2/14/1975 Vault active 2/15/1975 Old Faithful 7:50:00 2/15/1975 Old Faithful 8:57:00 1:07:00 02:09 8:53 2/15/1975 Old Faithful 9:49:00 0:52:00 ~4 1/2 9:44 9:48 2/15/1975 Old Faithful 11:08:00 1:19:00 01:45 10:58 11:04 2/15/1975 Old Faithful 12:05:00 0:57:00 ~4 1/2 11:50 150' 11:55 2/15/1975 Old Faithful 13:23:00 1:18:00 ~3 1/4 13:11 13:20 2/15/1975 Old Faithful 14:45:00 1:22:00 ~ 4 1/4 14:19 14:29 2/15/1975 Old Faithful 15:52:00 1:07:00 02:05 15:51 15:58 2/15/1975 Old Faithful 16:40:00 0:48:00 04:54 16:39 16:42 2/15/1975 Old Faithful 17:56:00 1:16:00 02:03 17:52 17:56 2/15/1975 Old Faithful 18:43:00 0:47:00 04:59 18:40 18:46 2/15/1975 Old Faithful 19:58:00 1:15:00 04:04 19:52 19:59 2/15/1975 Old Faithful 21:02:00 1:04:00 03:46 none 21:10 2/15/1975 Beach 11:03:00 2 1/2' / Lo -7oF 2/15/1975 Beehive 10:56:00 ie 2/15/1975 Castle 10:50:00 ie 2/15/1975 Castle 17:29:00 2/15/1975 Grand 12:28:00 ie 2/15/1975 Oblong 14:17:00 2/16/1975 Old Faithful 9:17:00 01:51 9:04 2/16/1975 Old Faithful 10:03:00 0:46:00 ~4 1/2 9:59 10:04 2/16/1975 Old Faithful 11:14:00 1:11:00 03:28 11:14 11:18 2/16/1975 Old Faithful 12:29:00 1:15:00 04:31 12:17 12:24 2/16/1975 Old Faithful 13:39:00 1:10:00 ~1 3/4 13:44 2/16/1975 Old Faithful 14:25:00 0:46:00 ~4 3/4 14:24 14:26 2/16/1975 Old Faithful 15:36:00 1:11:00 long 15:32 15:41 2/16/1975 Artemisia 11:10:00 VR Lo -11oF 2/16/1975 Beehive 11:03:00 d=5m14s 2/16/1975 Beehive's Indicator 10:55:00 ie 2/16/1975 Castle 15:04:00 2/16/1975 Grand 10:45:00 VR 2/16/1975 Riverside 10:20:00 VR 2/16/1975 Riverside 15:57:00 VR 2/16/1975 Round 14:08:00 2/17/1975 Old Faithful 9:11:00 none 2/17/1975 Old Faithful 10:18:00 1:07:00 03:58 none 10:21 2/17/1975 Old Faithful 11:32:00 1:14:00 02:02 11:30 11:30 2/17/1975 Old Faithful 12:19:00 0:47:00 04:22 12:18 12:22 2/17/1975 Old Faithful 13:44:00 1:25:00 01:49 12:25 13:32 2/17/1975 Old Faithful 14:26:00 0:42:00 04:44 14:18 14:31 2/17/1975 Old Faithful 15:44:00 1:18:00 01:51 15:40 15:42 2/17/1975 Old Faithful 16:23:00 0:39:00 04:58 16:23 16:31 2/17/1975 Old Faithful 17:46:00 1:23:00 01:43 17:40 17:39 2/17/1975 Old Faithful 18:29:00 0:43:00 04:25 18:26 18:33 2/17/1975 Beehive 11:09:00 d=5m17s 2/17/1975 Beehive's Indicator 10:57:00 Lo -22oF/Hi 23oF 2/17/1975 Castle 9:02:00 Lake -27oF 2/17/1975 Castle 17:49:00 2/17/1975 Grand 10:02:00 2/17/1975 Grand 17:42:00 2/17/1975 Plume 9:00:00 2/17/1975 Plume 9:26:00 2/17/1975 Plume 9:52:00 2/17/1975 Plume 11:04:00 2/17/1975 Plume 11:27:00 2/17/1975 Plume 11:52:00 2/17/1975 Riverside 15:08:00 2/17/1975 Rocket 14:38:00 2/17/1975 Splendid 9:46:00 2/18/1975 Old Faithful 5:43:00 2/18/1975 Old Faithful 6:52:00 1:09:00 >10m 2/18/1975 Old Faithful 8:10:00 1:18:00 long 2/18/1975 Old Faithful 9:10:00 1:00:00 ~4 none 9:22 2/18/1975 Old Faithful 10:20:00 1:10:00 02:22 10:18 10:22 2/18/1975 Old Faithful 11:09:00 0:49:00 04:36 11:06 11:12 2/18/1975 Old Faithful 12:30:00 1:21:00 02:28 12:18 12:23 2/18/1975 Old Faithful 13:22:00 0:52:00 04:29 13:20 13:22 2/18/1975 Old Faithful 14:46:00 1:24:00 02:00 14:34 14:37 2/18/1975 Old Faithful 15:28:00 0:42:00 04:01 15:27 15:36 2/18/1975 Old Faithful 16:39:00 1:11:00 02:20 16:40 2/18/1975 Old Faithful 17:29:00 0:50:00 04:18 17:29 17:31 2/18/1975 Old Faithful 18:53:00 1:24:00 03:18 18:40 18:42 2/18/1975 Old Faithful 19:53:00 1:00:00 long 20:03 2/18/1975 Old Faithful 21:03:00 1:10:00 02:00 21:03 2/18/1975 Old Faithful 21:53:00 0:50:00 05:01 21:53 2/18/1975 Beehive 11:22:00 d=5m6s 2/18/1975 Beehive's Indicator 11:11:00 Lo -11oF 2/18/1975 Castle 11:28:00 minor 2/18/1975 Castle 14:43:00 2/18/1975 Grand 12:03:00 2/18/1975 Oblong 14:31:00 2/18/1975 Riverside 8:37:00 2/18/1975 Riverside 14:49:00 2/18/1975 Sawmill 8:51:00 d=76m 2/19/1975 Old Faithful 7:21:00 2/19/1975 Old Faithful 8:38:00 1:17:00 01:52 8:28 2/19/1975 Old Faithful 9:17:00 0:39:00 ~4 1/2 9:25 2/19/1975 Old Faithful 10:42:00 1:25:00 01:46 10:30 10:30 2/19/1975 Old Faithful 11:43:00 1:01:00 ~4 1/2 11:28 11:29 2/19/1975 Old Faithful 12:56:00 1:13:00 02:28 12:55 12:58 2/19/1975 Old Faithful 13:51:00 0:55:00 04:21 13:47 13:48 2/19/1975 Old Faithful 15:08:00 1:17:00 ~2 1/4 15:01 15:04 2/19/1975 Old Faithful 15:59:00 0:51:00 04:23 16:00 2/19/1975 Old Faithful 18:34:00 04:27 16:18 2/19/1975 Old Faithful 19:49:00 1:15:00 19:49 2/19/1975 Castle 8:57:00 2/19/1975 Castle 17:54:00 ie 2/19/1975 Dome 13:50:00 ie 2/19/1975 Lion 15:14:00 ie 2/19/1975 Riverside 7:53:00 ie 2/20/1975 Old Faithful 9:53:00 03:29 9:44 2/20/1975 Old Faithful 10:56:00 1:03:00 ~2 1/4 10:54 11:03 2/20/1975 Old Faithful 11:48:00 0:52:00 04:19 11:40 11:48 2/20/1975 Old Faithful 13:05:00 1:17:00 01:46 12:49 13:00 2/20/1975 Old Faithful 13:57:00 0:52:00 04:16 13:49 13:52 2/20/1975 Old Faithful 15:13:00 1:16:00 01:46 15:09 15:10 2/20/1975 Old Faithful 16:00:00 0:47:00 04:23 15:54 16:01 2/20/1975 Beehive 12:22:00 ie 2/20/1975 Dome active am 2/21/1975 Old Faithful 9:03:00 01:53 9:01 2/21/1975 Old Faithful 10:01:00 0:58:00 04:23 9:48 9:51 2/21/1975 Old Faithful 11:21:00 1:20:00 01:52 11:08 11:14 2/21/1975 Old Faithful 12:08:00 0:47:00 04:29 11:57 12:10 2/21/1975 Old Faithful 13:23:00 1:15:00 01:52 13:15 13:22 2/21/1975 Old Faithful 14:13:00 0:50:00 04:44 14:06 14:10 2/21/1975 Old Faithful 15:38:00 1:25:00 ~2 15:22 15:29 2/21/1975 Beehive 14:51:00 ie 2/21/1975 Lion 13:44:00 ie 2/22/1975 Old Faithful 9:29:00 short 9:28 9:30 2/22/1975 Old Faithful 10:29:00 1:00:00 ~4 1/4 10:17 10:19 2/22/1975 Old Faithful 11:49:00 1:20:00 01:38 11:36 11:42 2/22/1975 Old Faithful 12:32:00 0:43:00 04:18 12:22 12:36 2/22/1975 Old Faithful 13:46:00 1:14:00 01:58 13:44 13:45 2/22/1975 Old Faithful 14:30:00 0:44:00 ~4 1/4 14:36 2/22/1975 Old Faithful 15:51:00 1:21:00 01:58 15:44 15:43 2/22/1975 Old Faithful 16:32:00 0:41:00 16:41? 16:41 2/22/1975 Little Cub 16:07:00 ie 2/23/1975 Old Faithful 9:28:00 ~2 2/23/1975 Old Faithful 10:29:00 1:01:00 04:01 10:12 10:19 2/23/1975 Old Faithful 11:37:00 1:08:00 02:07 11:36 11:41 2/23/1975 Old Faithful 12:43:00 1:06:00 04:08 12:25 12:27 2/23/1975 Old Faithful 13:49:00 1:06:00 04:07 none 13:56 2/23/1975 Old Faithful 15:09:00 1:20:00 01:44 14:59 15:01 2/23/1975 Old Faithful 15:50:00 0:41:00 04:27 15:56 2/23/1975 Old Faithful 18:07:00 04:43 17:58 2/23/1975 Old Faithful 19:25:00 1:18:00 long 19:23 2/23/1975 Old Faithful 20:32:00 1:07:00 04:32 20:35 2/23/1975 Beehive 11:59:00 d=4m38s 2/23/1975 Beehive's Indicator 11:51:00 ie Change to DST 2/23/1975 Castle 13:18:00 ie ` water 2/23/1975 Grand 13:58:00 ie 2/23/1975 Oblong 11:49:00 2/23/1975 Round 9:32:00 ie 2/24/1975 Old Faithful ~8:33 long 2/24/1975 Old Faithful 9:43:00 ~4 9:42 9:45 2/24/1975 Old Faithful 10:49:00 1:06:00 03:48 none 10:55 2/24/1975 Old Faithful 12:05:00 1:16:00 03:53 11:54 11:59 2/24/1975 Old Faithful 13:14:00 1:09:00 02:06 13:08 13:15 2/24/1975 Old Faithful 14:05:00 0:51:00 04:27 14:00 14:04 2/24/1975 Old Faithful 15:16:00 1:11:00 04:05 15:15 15:20 2/24/1975 Old Faithful 16:26:00 1:10:00 02:02 16:25 16:28 2/24/1975 Old Faithful 17:11:00 0:45:00 04:24 17:08 17:16 2/24/1975 Old Faithful 18:37:00 1:26:00 01:47 18:29 18:26 2/24/1975 Old Faithful 19:26:00 0:49:00 04:38 19:23 19:24 2/24/1975 Old Faithful 20:50:00 1:24:00 02:01 20:35 20:42 2/24/1975 Castle 15:58:00 ie 2/24/1975 Depression 16:29:00 ie 2/24/1975 Grand 14:39:00 ie 2/24/1975 Lone Star 15:34:00 2/24/1975 Riverside 12:41:00 VR 2/25/1975 Old Faithful 9:01:00 01:46 2/25/1975 Old Faithful 9:54:00 0:53:00 ~0:4:10 9:44 9:48 2/25/1975 Old Faithful 11:14:00 1:20:00 02:10 11:02 11:01 2/25/1975 Old Faithful 12:03:00 0:49:00 04:54 12:00 12:00 2/25/1975 Old Faithful 13:21:00 1:18:00 ~2 13:11 13:19 2/25/1975 Old Faithful 14:06:00 0:45:00 04:35 14:06 14:11 2/25/1975 Old Faithful 15:21:00 1:15:00 03:44 15:18 15:20 2/25/1975 Old Faithful 16:34:00 1:13:00 long 16:31 2/25/1975 Old Faithful 17:40:00 1:06:00 04:23 17:33 17:44 2/25/1975 Old Faithful 18:48:00 1:08:00 long 18:53 2/25/1975 Old Faithful 20:01:00 1:13:00 long 20:00 2/25/1975 Old Faithful 21:11:00 1:10:00 ~2 21:12 2/25/1975 Old Faithful 22:04:00 0:53:00 long 22:01 2/25/1975 Beehive ~9:09 2/25/1975 Castle 9:44:00 ie 2/25/1975 Castle 19:14:00 ie water 2/25/1975 Grand 16:20:00 2/25/1975 Grand 16:36:00 ie 2/25/1975 Lion 14:25:00 ie 2/25/1975 Lion 17:48:00 2/25/1975 Riverside 11:43:00 VR 2/26/1975 Old Faithful 9:15:00 04:09 9:08 2/26/1975 Old Faithful 10:20:00 1:05:00 ~2 1/4 10:28 2/26/1975 Old Faithful 11:18:00 0:58:00 ~4 1/4 11:08 11:12 2/26/1975 Old Faithful 12:37:00 1:19:00 01:56 12:24 12:30 2/26/1975 Old Faithful 13:21:00 0:44:00 04:26 13:21 13:25 2/26/1975 Old Faithful 14:30:00 1:09:00 02:47 14:30 14:36 2/26/1975 Old Faithful 15:27:00 0:57:00 04:31 15:27 15:25 2/26/1975 Old Faithful 17:00:00 1:33:00 04:24 16:44 16:42 2/26/1975 Old Faithful 18:05:00 1:05:00 03:31 18:00 18:12 2/26/1975 Old Faithful ~19:09 long 19:15 2/26/1975 Castle 3:00:00 ie wind-33mph/pm 2/26/1975 Riverside 11:54:00 2/27/1975 Old Faithful 8:10:00 short 1 3/4? 2/27/1975 Old Faithful 8:51:00 0:41:00 ~4 1/4 8:57 2/27/1975 Old Faithful 10:07:00 1:16:00 01:48 10:02 10:04 2/27/1975 Old Faithful 10:58:00 0:51:00 ~4 10:50 10:54 2/27/1975 Old Faithful 12:10:00 1:12:00 01:47 12:01 12:03 2/27/1975 Old Faithful 12:59:00 0:49:00 04:25 12:54 12:58 2/27/1975 Old Faithful 14:22:00 1:23:00 03:45 14:06 14:12 2/27/1975 Old Faithful 15:28:00 1:06:00 03:31 15:26 15:32 2/27/1975 Old Faithful 16:36:00 1:08:00 03:56 16:38 2/27/1975 Old Faithful 17:45:00 1:09:00 03:47 17:38 17:48 2/27/1975 Old Faithful 19:02:00 1:17:00 04:26 18:47 ~156' 18:55 2/27/1975 Old Faithful 20:14:00 1:12:00 short 20:16 2/27/1975 Beehive 9:54:00 d=4m43s 2/27/1975 Beehive's Indicator 9:39:00 ie Sun 8:20 2/27/1975 Castle 9:54:00 ie 2/27/1975 Castle 18:42:00 2/28/1975 Old Faithful 9:07:00 01:42 9:02 2/28/1975 Old Faithful 9:53:00 0:46:00 04:34 9:50 9:54 2/28/1975 Old Faithful 11:08:00 1:15:00 03:12 11:08 2/28/1975 Old Faithful 12:20:00 1:12:00 04:51 12:09 12:18 2/28/1975 Old Faithful 13:24:00 1:04:00 04:20 13:36 2/28/1975 Old Faithful 14:35:00 1:11:00 02:15 none 14:38 2/28/1975 Old Faithful 15:37:00 1:02:00 04:17 15:30 15:27 2/28/1975 Old Faithful 16:51:00 1:14:00 02:14 16:41 ~100' /slow 16:50 2/28/1975 Old Faithful ~17:40 ~0:49 17:43 2/28/1975 Old Faithful 18:58:00 ~1:18 01:54 18:57 ~137'explosive 18:55 2/28/1975 Old Faithful 19:45:00 0:47:00 04:23 19:42 19:48 2/28/1975 Old Faithful 20:54:00 1:09:00 03:51 20:58 2/28/1975 Beehive 8:46:00 ie 2/28/1975 Vault 13:48:00 ie 3/1/1975 Old Faithful 9:58:00 02:33 9:57 3/1/1975 Old Faithful 10:53:00 0:55:00 04:31 10:53 10:50 3/1/1975 Old Faithful 12:04:00 1:11:00 02:48 12:08 3/1/1975 Old Faithful 12:56:00 0:52:00 04:31 12:51 12:59 3/1/1975 Old Faithful 14:20:00 1:24:00 02:48 14:09 14:11 3/1/1975 Old Faithful 15:19:00 0:59:00 04:20 15:11 15:15 3/1/1975 Old Faithful 16:32:00 1:13:00 ~2 16:32 3/1/1975 Old Faithful 17:23:00 0:51:00 04:29 17:08 17:22 3/1/1975 Old Faithful 18:40:00 1:17:00 01:44 ~18:30 18:38 3/1/1975 Old Faithful 19:32:00 0:52:00 long 19:27 3/1/1975 Old Faithful 20:49:00 1:17:00 03:40 20:43 20:44 3/1/1975 Castle 15:17:00 3/1/1975 Depression 18:38:00 ie 3/2/1975 Old Faithful 9:51:00 02:03 9:33 10:41 3/2/1975 Old Faithful 10:46:00 0:55:00 04:03 10:33 11:58 3/2/1975 Old Faithful 12:03:00 1:17:00 02:13 11:54 12:56 3/2/1975 Old Faithful 12:51:00 0:48:00 04:14 12:50 14:04 3/2/1975 Old Faithful 14:10:00 1:19:00 03:43 14:02 15:20 3/2/1975 Old Faithful 15:22:00 1:12:00 04:09 15:11 16:35 3/2/1975 Old Faithful 16:30:00 1:08:00 ~3 3/4 3/2/1975 Castle 8:30:00 ie 3/2/1975 Castle 17:50:00 VR 3/2/1975 Depression 18:30:00 ie 3/2/1975 Dome 9:40:00 ie 3/2/1975 Dome 12:56:00 3/2/1975 Lion 9:49:00 ie 3/2/1975 Lion 11:12:00 ie 3/3/1975 Old Faithful 9:13:00 01:49 9:13 3/3/1975 Old Faithful 10:01:00 0:48:00 04:42 9:59 10:00 3/3/1975 Old Faithful 11:21:00 1:20:00 01:47 11:12 11:17 3/3/1975 Old Faithful 12:03:00 0:42:00 04:42 11:56 12:08 3/3/1975 Old Faithful 13:15:00 1:12:00 01:55 13:15 13:19 3/3/1975 Old Faithful 14:04:00 0:49:00 04:10 none 14:05 3/3/1975 Old Faithful 15:22:00 1:18:00 01:39 15:13 15:17 3/3/1975 Old Faithful 16:09:00 0:47:00 04:27 16:02 16:10 3/3/1975 Old Faithful 17:22:00 1:13:00 01:43 17:21 17:24 3/3/1975 Old Faithful 18:05:00 0:43:00 04:31 none 18:09 3/3/1975 Old Faithful 19:18:00 1:13:00 04:16 19:17 19:20 3/3/1975 Old Faithful 20:26:00 1:08:00 03:32 20:31 3/3/1975 Beehive 8:30:00 VR 3/3/1975 Castle 11:43:00 3/4/1975 Old Faithful 9:41:00 01:53 9:38 3/4/1975 Old Faithful 10:34:00 0:53:00 04:33 10:28 10:31 3/4/1975 Old Faithful 11:46:00 1:12:00 03:53 11:45 11:49 3/4/1975 Old Faithful 12:50:00 1:04:00 04:16 12:49 12:56 3/4/1975 Old Faithful 13:59:00 1:09:00 04:02 13:55 14:03 3/4/1975 Old Faithful 15:16:00 1:17:00 04:14 15:13 15:11 3/4/1975 Old Faithful 16:28:00 1:12:00 01:58 16:29 3/4/1975 Old Faithful 17:21:00 0:53:00 04:36 17:18 3/4/1975 Old Faithful 18:37:00 1:16:00 02:08 18:35 18:36 3/4/1975 Old Faithful 19:28:00 0:51:00 04:31 19:29 3/4/1975 Old Faithful 20:48:00 1:20:00 02:07 20:43 3/4/1975 Old Faithful 21:40:00 0:52:00 04:33 21:31 21:38 3/4/1975 Castle 14:22:00 3/4/1975 North Goggles 15:40:00 ie 3/4/1975 Riverside 10:40:00 VR 3/5/1975 Old Faithful 8:59:00 02:38 8:50 3/5/1975 Old Faithful 9:57:00 0:58:00 04:19 9:47 9:54 3/5/1975 Old Faithful 11:11:00 1:14:00 01:41 11:04 11:10 3/5/1975 Old Faithful 12:07:00 0:56:00 04:43 11:55 11:58 3/5/1975 Old Faithful 13:21:00 1:14:00 04:06 13:14 13:23 3/5/1975 Old Faithful 14:27:00 1:06:00 03:51 14:26 14:33 3/5/1975 Old Faithful 15:44:00 1:17:00 04:11 15:32 15:37 3/5/1975 Old Faithful 16:52:00 1:08:00 04:06 16:48 16:57 3/5/1975 Beehive 7:00:00 VR 3/5/1975 Castle 8:23:00 ie 3/5/1975 Castle 17:07:00 3/5/1975 Grand 19:39:00 ie 3/6/1975 Old Faithful 9:04:00 04:58 9:04 3/6/1975 Old Faithful 10:25:00 1:21:00 04:09 10:16 10:20 3/6/1975 Old Faithful 11:35:00 1:10:00 04:29 11:24 11:38 3/6/1975 Old Faithful 12:51:00 1:16:00 02:11 12:46 12:50 3/6/1975 Old Faithful 13:45:00 0:54:00 ~4 1/4 13:37 13:42 3/6/1975 Old Faithful 15:01:00 1:16:00 04:02 14:53 14:58 3/6/1975 Old Faithful 16:08:00 1:07:00 04:23 16:07 16:13 3/6/1975 Castle ~10:25 VR 3/6/1975 Daisy ~14:30 VR 3/6/1975 Grand ~10:40 VR 3/6/1975 Lion 19:00:00 3/6/1975 Plume 8:44:00 3/6/1975 Plume 9:09:00 3/6/1975 Plume 9:32:00 3/6/1975 Plume 9:53:00 3/6/1975 Plume 11:33:00 3/6/1975 Plume 11:56:00 3/6/1975 Plume 12:20:00 3/6/1975 Plume 12:43:00 3/6/1975 Plume 13:07:00 3/6/1975 Plume 13:31:00 3/6/1975 Riverside 14:30:00 VR 3/6/1975 Splendid ~14:30 VR 3/6/1975 Vault 8:48:00 ie 3/7/1975 Old Faithful 9:08:00 03:40 8:59 3/7/1975 Old Faithful 10:17:00 1:09:00 04:16 10:10 10:18 3/7/1975 Old Faithful 11:26:00 1:09:00 01:46 11:20 11:30 3/7/1975 Old Faithful 12:21:00 0:55:00 04:40 12:10 12:13 3/7/1975 Old Faithful 13:40:00 1:19:00 03:42 13:31 13:35 3/7/1975 Old Faithful 14:57:00 1:17:00 01:48 14:44 14:50 3/7/1975 Old Faithful 15:45:00 0:48:00 04:09 15:35 15:44 3/7/1975 Castle 15:35:00 ieVR 3/7/1975 Grand 10:40:00 ieVR 3/7/1975 Lion 14:57:00 3/7/1975 Lion 15:36:00 3/7/1975 Lion 16:02:00 3/7/1975 Lion 19:25:00 3/8/1975 Old Faithful 9:48:00 02:05 9:39 3/8/1975 Old Faithful 10:31:00 0:43:00 04:40 10:31 10:38 3/8/1975 Old Faithful 11:48:00 1:17:00 ~1 3/4 11:44 11:47 3/8/1975 Old Faithful 12:32:00 0:44:00 03:28 none 12:35 3/8/1975 Old Faithful 13:58:00 1:26:00 ~2 13:44 13:42 3/8/1975 Old Faithful 14:38:00 0:40:00 04:31 none 14:48 3/8/1975 Old Faithful 16:00:00 1:22:00 01:55 15:53 15:53 3/8/1975 Castle 9:45:00 ie 3/9/1975 Old Faithful 9:27:00 03:30 9:25 3/9/1975 Old Faithful 10:30:00 1:03:00 03:52 10:30 10:37 3/9/1975 Old Faithful 11:35:00 1:05:00 03:46 11:35 11:40 3/9/1975 Old Faithful 12:51:00 1:16:00 04:25 12:37 12:45 3/9/1975 Old Faithful 14:03:00 1:12:00 03:48 13:57 14:06 3/9/1975 Old Faithful 15:16:00 1:13:00 ~1 1/2 15:09 15:13 3/9/1975 Old Faithful 16:09:00 0:53:00 04:35 15:58 16:01 3/9/1975 Old Faithful 17:24:00 1:15:00 03:44 17:20 17:24 3/9/1975 Old Faithful 18:34:00 1:10:00 01:51 18:27 18:34 3/9/1975 Old Faithful 19:18:00 0:44:00 long 19:22 3/9/1975 Beehive 17:09:00 ie 3/9/1975 Castle 13:04:00 ie 3/9/1975 Grand 13:05:00 ie 3/9/1975 Lion 18:41:00 3/9/1975 North Goggles 11:17:00 ie 3/9/1975 Round 14:48:00 3/9/1975 Vault 10:27:00 ie 3/9/1975 Vault 14:12:00 3/9/1975 Vault 15:03:00 ie 3/9/1975 Vault 16:02:00 3/10/1975 Old Faithful 8:54:00 01:54 8:46 3/10/1975 Old Faithful 9:39:00 0:45:00 04:38 9:38 9:44 3/10/1975 Old Faithful 10:56:00 1:17:00 01:51 10:47 10:55 3/10/1975 Old Faithful 11:42:00 0:46:00 04:35 11:39 11:44 3/10/1975 Old Faithful 12:53:00 1:11:00 03:59 12:52 12:57 3/10/1975 Old Faithful 14:03:00 1:10:00 03:46 13:51 14:05 3/10/1975 Old Faithful 15:07:00 1:04:00 04:21 15:06 15:03 3/10/1975 Old Faithful 16:18:00 1:11:00 03:46 16:17 16:20 3/10/1975 Beehive 15:35:00 ie 3/10/1975 Dome 9:34:00 ie 3/10/1975 Dome 11:00:00 ie 3/11/1975 Old Faithful 9:43:00 03:47 9:42 3/11/1975 Old Faithful 11:00:00 1:17:00 04:33 10:51 10:53 3/11/1975 Old Faithful 12:15:00 1:15:00 01:57 12:10 12:15 3/11/1975 Old Faithful 13:03:00 0:48:00 04:53 12:58 13:05 3/11/1975 Old Faithful 14:20:00 1:17:00 01:44 14:16 14:19 3/11/1975 Old Faithful 15:11:00 0:51:00 04:21 14:58 15:07 3/11/1975 Old Faithful 16:34:00 1:23:00 01:37 16:22 16:24 3/11/1975 Old Faithful 17:14:00 0:40:00 04:33 17:19 3/11/1975 Old Faithful 18:35:00 1:21:00 01:45 18:26 17:29 3/11/1975 Old Faithful 19:13:00 0:38:00 04:55 19:13 19:23 3/11/1975 Beehive 16:07:00 3/11/1975 Castle 18:19:00 ie 3/11/1975 Depression 10:38:00 3/11/1975 Depression 16:04:00 3/11/1975 Grand 8:46:00 ie 3/11/1975 Grand 16:04:00 3/11/1975 Plume 9:49:00 3/11/1975 Plume 10:12:00 3/11/1975 Plume 10:36:00 3/11/1975 Plume 11:01:00 3/11/1975 Plume 11:24:00 3/11/1975 Plume 11:46:00 3/11/1975 Plume 12:10:00 3/11/1975 Plume 12:33:00 3/11/1975 Plume 12:58:00 3/11/1975 Plume 13:23:00 3/11/1975 Plume 13:46:00 3/12/1975 Old Faithful 9:31:00 04:08 9:28 3/12/1975 Old Faithful 10:41:00 1:10:00 04:37 10:40 10:44 3/12/1975 Old Faithful 11:45:00 1:04:00 04:03 11:56 3/12/1975 Old Faithful 13:01:00 1:16:00 04:01 12:50 12:57 3/12/1975 Old Faithful 14:17:00 1:16:00 04:20 14:08 14:13 3/12/1975 Old Faithful 15:30:00 1:13:00 01:54 15:21 15:30 3/12/1975 Old Faithful 16:17:00 0:47:00 04:29 16:09 16:20 3/12/1975 Old Faithful 17:30:00 1:13:00 03:48 17:22 17:32 3/12/1975 Old Faithful 18:45:00 1:15:00 04:10 18:35 18:40 3/12/1975 Old Faithful 20:06:00 1:21:00 04:36 19:48 19:53 3/12/1975 Old Faithful 21:17:00 1:11:00 ~3 3/4 21:21 3/12/1975 Old Faithful 22:25:00 1:08:00 04:27 22:18 22:27 3/12/1975 Beehive 17:01:00 d=5m21s 3/12/1975 Beehive's Indicator 16:47:00 Lo -22oF 3/12/1975 Castle 12:18:00 3/12/1975 Castle 21:30:00 ie 3/12/1975 Depression 11:04:00 3/12/1975 Depression 17:13:00 3/12/1975 Giantess 21:06:00 steam 22:07 3/12/1975 Lion 9:27:00 3/12/1975 Lion 10:29:00 3/12/1975 Lion 12:00:00 minor 11 sec 3/12/1975 Lion 12:39:00 d=2m52s 3/12/1975 Lion 14:43:00 3/12/1975 Lion 17:15:00 3/12/1975 Mortar 16:35:00 15' 3/12/1975 Plume 8:42:00 3/12/1975 Plume 9:05:00 3/12/1975 Plume 9:30:00 3/12/1975 Plume 9:54:00 3/12/1975 Plume 10:19:00 3/12/1975 Plume 10:41:00 3/12/1975 Plume 11:27:00 3/12/1975 Plume 11:51:00 3/12/1975 Plume 12:15:00 3/12/1975 Spiteful 16:25:00 3/13/1975 Old Faithful 9:05:00 04:05 3/13/1975 Old Faithful 10:16:00 1:11:00 ~4 10:12 10:17 3/13/1975 Old Faithful 11:25:00 1:09:00 04:33 11:24 11:28 3/13/1975 Old Faithful 12:51:00 1:26:00 01:55 12:31 12:40 3/13/1975 Old Faithful 13:42:00 0:51:00 04:24 13:25 13:40 3/13/1975 Old Faithful 15:02:00 1:20:00 ~1 3/4 14:51 14:57 3/13/1975 Old Faithful 15:46:00 0:44:00 04:26 15:44 15:49 3/13/1975 Old Faithful 17:08:00 1:22:00 01:52 16:46 17:01 3/13/1975 Old Faithful 18:02:00 0:54:00 04:24 17:46 17:55 3/13/1975 Old Faithful 19:12:00 1:10:00 04:04 19:05 19:17 3/13/1975 Old Faithful 20:17:00 1:05:00 long 20:24 3/13/1975 Beehive 16:00:00 d=5m16s 3/13/1975 Beehive's Indicator 15:48:00 ie 3/13/1975 Castle 15:43:00 ie 3/13/1975 Giantess ~11:00stm/end 3/13/1975 Giantess 13:32:00 6m26s 3/13/1975 Giantess 15:00:00 "6m57s, end" 3/13/1975 Grand 10:30:00 ie 3B 3/13/1975 Plume 15:52:00 3/13/1975 Plume 16:16:00 3/13/1975 Vault active pm 3/13/1975 Vault 14:38:00 ie et.al. 3/13/1975 Vault 15:49:00 3/13/1975 Vault 19:31:00 3/14/1975 Old Faithful 8:06:00 04:01 8:04 3/14/1975 Old Faithful 9:16:00 1:10:00 01:57 9:11 9:18 3/14/1975 Old Faithful 10:06:00 0:50:00 ~4 1/4 10:06 3/14/1975 Old Faithful 11:20:00 1:14:00 02:37 11:19 11:19 3/14/1975 Old Faithful 12:15:00 0:55:00 04:32 12:08 12:12 3/14/1975 Old Faithful 13:21:00 1:06:00 03:59 13:21 13:30 3/14/1975 Old Faithful 14:27:00 1:06:00 04:04 14:26 14:33 3/14/1975 Old Faithful 15:38:00 1:11:00 03:48 15:34 15:39 3/14/1975 Old Faithful 16:53:00 1:15:00 03:48 16:40 16:48 3/14/1975 Beehive 11:07:00 d=4m51s 3/14/1975 Beehive's Indicator 10:46:00 d=21m 3/14/1975 Castle 9:13:00 "Lo -10oF,Hi 35oF " 3/14/1975 Grand 8:34:00 3B 3/14/1975 Grand 15:44:00 ie 3/14/1975 Plume 9:00:00 3/14/1975 Plume 9:23:00 3/14/1975 Plume 9:44:00 3/14/1975 Plume 10:06:00 3/14/1975 Plume 10:28:00 3/14/1975 Plume 10:52:00 3/14/1975 Plume 11:38:00 3/14/1975 Plume 12:19:00 3/15/1975 Old Faithful 8:56:00 04:34 8:53 3/15/1975 Old Faithful 10:05:00 1:09:00 03:51 10:04 10:11 3/15/1975 Old Faithful 11:24:00 1:19:00 01:52 11:08 11:15 3/15/1975 Old Faithful 12:04:00 0:40:00 04:32 none 12:11 3/15/1975 Old Faithful 13:37:00 1:33:00 01:39 13:17 13:19 3/15/1975 Old Faithful 14:13:00 0:36:00 04:12 14:13 14:24 3/15/1975 Old Faithful 15:28:00 1:15:00 01:59 15:15 15:26 3/15/1975 Old Faithful 16:23:00 0:55:00 04:24 16:12 16:18 3/15/1975 Old Faithful 17:35:00 1:12:00 02:10 17:38 3/15/1975 Beehive 14:45:00 d=5m2s 3/15/1975 Beehive's Indicator 14:29:00 ie Lo -4oF Hi 35oF 3/15/1975 Castle 12:40:00 ie 3/15/1975 Grand 12:40:00 ie 3/15/1975 Lion 11:53:00 3/15/1975 Lion 14:47:00 3/15/1975 Round 16:27:00 ie 3/16/1975 Old Faithful 8:03:00 long 3/16/1975 Old Faithful 9:16:00 1:13:00 04:10 9:02 9:15 3/16/1975 Old Faithful 10:22:00 1:06:00 01:46 10:21 10:29 3/16/1975 Old Faithful 11:11:00 0:49:00 04:22 11:05 11:09 3/16/1975 Old Faithful 12:29:00 1:18:00 03:57 12:27 12:24 3/16/1975 Old Faithful 13:31:00 1:02:00 03:51 13:41 3/16/1975 Old Faithful 14:46:00 1:15:00 03:49 14:37 14:41 3/16/1975 Old Faithful 15:56:00 1:10:00 04:11 15:48 15:56 3/16/1975 Old Faithful 17:13:00 1:17:00 02:09 17:04 17:09 3/16/1975 Old Faithful 18:00:00 0:47:00 04:29 17:56 18:05 3/16/1975 Old Faithful Lo 13oF Hi 33oF 3/16/1975 Old Faithful "Snow 3""" 3/17/1975 Old Faithful 8:36:00 01:54 8:23 3/17/1975 Old Faithful 9:25:00 0:49:00 04:44 9:18 9:26 3/17/1975 Old Faithful 10:38:00 1:13:00 01:52 10:30 10:31 3/17/1975 Old Faithful 11:24:00 0:46:00 04:38 none 11:26 3/17/1975 Old Faithful 12:47:00 1:23:00 01:51 12:36 12:40 3/17/1975 Old Faithful 13:38:00 0:51:00 05:00 13:32 13:35 3/17/1975 Old Faithful 14:52:00 1:14:00 01:53 14:45 14:53 3/17/1975 Old Faithful 20:15:00 03:42 3/17/1975 Old Faithful 21:17:00 1:02:00 04:29 21:25 3/17/1975 Old Faithful 22:30:00 1:13:00 03:24 22:25 22:32 3/17/1975 Castle 8:32:00 Lo -2oF Hi 28oF 3/17/1975 Plume 8:26:00 3/17/1975 Plume 8:49:00 3/17/1975 Plume 9:16:00 3/17/1975 Plume 9:42:00 3/17/1975 Plume 10:05:00 3/17/1975 Plume 10:29:00 3/17/1975 Plume 10:53:00 3/17/1975 Plume 11:15:00 3/18/1975 Old Faithful 8:52:00 04:03 8:51 3/18/1975 Old Faithful 10:02:00 1:10:00 long 10:04 3/18/1975 Old Faithful 11:15:00 1:13:00 02:08 11:08 11:17 3/18/1975 Old Faithful 12:02:00 0:47:00 04:38 11:59 12:07 3/18/1975 Old Faithful 13:16:00 1:14:00 03:57 13:15 13:18 3/18/1975 Old Faithful 14:28:00 1:12:00 04:19 14:21 14:28 3/18/1975 Old Faithful 15:39:00 1:11:00 03:38 15:28 15:41 3/18/1975 Old Faithful 16:57:00 1:18:00 01:55 16:45 16:49 3/18/1975 Beehive 8:50:00 d=4m29s 3/18/1975 Beehive's Indicator 8:41:00 ie Lo 17oF 3/18/1975 Lion 8:41:00 4/2/1975 Old Faithful 15:35:00 end short 4/2/1975 Old Faithful 16:16:00 04:45 16:04:30 4/2/1975 Old Faithful 17:34:42 1:18:42 01:53 17:27:25 4/2/1975 Old Faithful 18:30:29 0:55:47 03:50 4/2/1975 Old Faithful 19:48:03 1:17:34 04:19 19:39:00 4/2/1975 Old Faithful 20:57:37 1:09:34 02:15 4/2/1975 Old Faithful 21:48:53 0:51:16 04:43 4/2/1975 Old Faithful 23:02:57 1:14:04 03:48 23:02:02 4/2/1975 Beehive 16:38:00 "end/snow,warm" 4/3/1975 Old Faithful 0:13:45 1:10:48 04:10 07:22 4/3/1975 Old Faithful 7:47:24 04:43 none 4/3/1975 Old Faithful 8:58:36 1:11:12 04:03 none 100' 4/3/1975 Old Faithful 10:08:29 1:09:53 01:58 130'-150' 01:19 4/3/1975 Old Faithful 10:53:03 0:44:34 04:36 00:07 130' 25:19 24:00 4/3/1975 Old Faithful 12:06:56 1:13:53 03:44 00:13 115' 29:19 04:00 4/3/1975 Old Faithful 13:17:58 1:11:02 01:54 13:08 130' 02:51 26:28 4/3/1975 Old Faithful 14:00:31 0:42:33 04:38 00:12 130' 28:29 25:38 4/3/1975 Old Faithful 15:27:38 1:27:08 04:04 15:15:34 12:05 125' 44:34 16:06 4/3/1975 Old Faithful 16:33:49 1:06:11 02:02 16:33:35 00:14 125' 20:57 23:38 4/3/1975 Old Faithful 17:23:03 0:49:14 04:41 17:16:42 06:21 135' 16:57 03:59 4/3/1975 Old Faithful 18:40:04 1:17:01 01:58 18:33:16 06:48 105' 27:47 10:50 4/3/1975 Old Faithful 19:32:01 0:51:58 04:27 19:24:31 07:30 125' 25:03 02:44 4/3/1975 Old Faithful 20:56:43 1:24:41 ~02:26 20:41:40 15:02 dark 32:43 07:41 4/3/1975 Old Faithful 22:05:08 1:08:25 01:46 21:55:38 09:30 16:16 16:27 4/3/1975 Old Faithful 22:49:48 0:44:40 04:40 22:49:20 00:28 23:45 07:29 4/4/1975 Old Faithful 6:33:59 2 3/4+ 6:33:49 00:10 4/4/1975 Old Faithful 7:47:46 1:13:47 04:18 7:36:15 11:31 130' 4/4/1975 Old Faithful 9:04:02 1:16:16 4 1/4 8:50:51 13:10 145' 2:29 4/4/1975 Old Faithful 10:10:23 1:06:21 04:15 10:01:06 09:17 140' 9:55 07:26 4/4/1975 Old Faithful 11:18:41 1:08:18 03:42 11:14:46 03:55 120' 1:57 07:58 4/4/1975 Old Faithful 12:21:08 1:02:27 03:57 12:20:56 00:12 115' 5:51 03:54 4/4/1975 Old Faithful 13:28:39 1:07:31 03:34 13:25:13 03:27 125' 5:05 00:47 4/4/1975 Old Faithful 14:38:09 1:09:29 04:08 14:31:34 06:35 120' 1:58 03:07 4/4/1975 Old Faithful 15:57:33 1:19:24 01:59 15:55:54? 01:39? 150' 9:55 07:57 4/4/1975 Old Faithful 16:45:10 0:47:37 04:16 00:00 130' 31:48 21:53 4/4/1975 Old Faithful 18:04:35 1:19:25 01:58 18:01:12 03:23 135' 31:49 00:01 4/4/1975 Old Faithful 19:02:59 0:58:24 04:23 18:47:50 15:09 steam 21:02 10:47 4/4/1975 Old Faithful 20:17:13 1:14:14 04:27 20:12:09 05:04 steam 15:51 05:11 4/4/1975 Old Faithful 21:29:11 1:11:58 02:04 21:20:13 08:58 2:16 13:35 4/4/1975 Old Faithful 22:21:16 0:52:05 04:53 22:11:06 10:10 19:53 17:37 4/5/1975 Old Faithful 6:32:19 04:21 6:24:43 07:36 4/5/1975 Old Faithful 7:43:59 1:11:41 04:09 7:40:43 03:16 100' 4/5/1975 Old Faithful 8:49:49 1:05:49 04:11 8:48:14 01:35 110' 05:51 4/5/1975 Old Faithful 10:01:33 1:11:44 02:13 9:53:50 07:42 145' 05:55 00:03 4/5/1975 Old Faithful 10:46:47 0:45:14 04:42 10:46:12 00:35 110' 26:30 20:35 4/5/1975 Old Faithful 12:13:00 1:26:13 01:51 12:01:07 11:53 steam 40:59 14:29 4/5/1975 Old Faithful 13:00:51 0:47:50 04:21 12:55:03 05:48 120'+ steam 38:23 02:36 4/5/1975 Old Faithful 14:11:45 1:10:54 03:52 none 120' 23:04 15:19 00:27 4/5/1975 Old Faithful 15:23:22 1:11:36 03:55 15:21:52 01:30 145' steam 00:42 22:22 ~00:31 4/5/1975 Old Faithful 16:35:20 1:11:58 03:48 16:22:47 12:33 steam 00:22 00:20 4/5/1975 Old Faithful 17:42:49 1:07:30 04:02 17:38:16 04:33 120' 04:28 04:06 00:24 4/5/1975 Old Faithful 18:54:04 1:11:15 01:53 18:48:05 05:59 135' 03:45 00:43 00:24 4/5/1975 Old Faithful 19:40:20 0:46:16 04:39 none 24:59 21:14 4/5/1975 Old Faithful 20:58:42 1:18:22 01:53 20:56:56 01:46 32:06 07:07 4/5/1975 Old Faithful 21:47:37 0:48:55 04:39 21:44:44 02:53 29:27 02:39 4/5/1975 Vault D/sno/Lo18o-36oF 4/6/1975 Old Faithful 7:01:53 02:18 6:47:45 14:08 4/6/1975 Old Faithful 7:51:44 0:49:51 04:06 7:36:48 14:56 4/6/1975 Old Faithful 10:02:05 04:51 9:44:59 17:06 4/6/1975 Old Faithful 11:15:22 1:13:17 03:52 11:11:29 03:54 140' 00:33 4/6/1975 Old Faithful 12:24:07 1:08:45 04:20 12:19:24 04:42 115' 04:32 00:25 4/6/1975 Old Faithful 13:37:19 1:13:12 01:49 13:27:35 09:44 130' 04:27 00:05 00:16 4/6/1975 Old Faithful 14:22:55 0:45:36 04:34 14:16:24 06:31 125' 27:36 23:08 00:34 4/6/1975 Old Faithful 15:33:48 1:10:52 03:53 15:33:33 00:15 120' 25:16 02:20 00:30 4/6/1975 Old Faithful 16:49:59 1:16:11 04:07 16:38:14 11:45 130' 05:19 19:57 00:20 0:18-0:57 4/6/1975 Old Faithful 18:03:02 1:13:03 01:57 17:50:47 12:14 135' 03:08 02:11 00:34 0:20-0:56 4/6/1975 Old Faithful 18:54:39 0:51:37 05:01 18:49:45 04:54 21:26 18:18 4/6/1975 Old Faithful 20:17:35 1:22:56 02:05 20:03:05 14:30 31:19 09:53 0:0:19? 4/6/1975 Old Faithful 21:11:39 0:54:04 05:07 21:01:05 10:35 28:52 02:27 4/6/1975 Old Faithful 22:35:32 1:23:53 01:44 22:21:55 13:36 29:49 00:57 4/6/1975 Old Faithful Lo 26 Hi 38 snow 4/7/1975 Old Faithful 7:08:51 03:32 7:07:43 01:07 0:15 -stm 4/7/1975 Old Faithful 8:16:54 1:08:03 02:01 8:14:44 02:09 130' 0:28-0:63 4/7/1975 Old Faithful 9:16:11 0:59:17 04:55 9:11:28 04:43 140' 08:46 0:19-0:59 4/7/1975 Old Faithful 10:36:49 1:20:38 04:07 10:27:02 09:47 steam 21:21 12:35 0:21-? 4/7/1975 Old Faithful 11:41:38 1:04:49 02:16 11:37:47 03:51 steam 15:49 05:32 4/7/1975 Old Faithful 12:24:28 0:42:50 04:14 12:22:35 01:54 21:59 06:10 4/7/1975 Old Faithful 13:47:08 1:22:40 <01:45 steam 13:36:52 10:15 wind died 39:49 17:50 4/7/1975 Old Faithful 14:32:42 0:45:34 04:21 14:22:02 10:40 120' 37:06 02:44 0:30-1:04 4/7/1975 Old Faithful 15:57:05 1:24:23 02:00 15:39:53 17:12 155' 38:49 01:44 0:19-? 4/7/1975 Old Faithful 16:42:29 0:45:24 04:36 16:38:40 03:49 150'+ 39:00 00:11 ?-0:57 4/7/1975 Old Faithful 18:02:19 1:19:51 01:51 17:57:17 05:03 120' wind 34:27 04:33 0:20-0:51 4/7/1975 Old Faithful 18:50:07 0:47:48 04:36 18:46:02 04:05 130' 32:03 02:24 0:18-0:55 4/7/1975 Old Faithful 20:07:39 1:17:32 01:50 20:05:29 02:10 125'strng wind 29:44 02:19 0:15-0:53 4/7/1975 Old Faithful 20:55:11 0:47:32 04:47 20:52:24 02:47 30:00 00:16 4/7/1975 Old Faithful 22:08:00 1:12:48 03:57 22:03:41 04:18 25:16 04:44 4/7/1975 Dome active Lo18-29ownd/sno 4/8/1975 Old Faithful 6:19:16 long 4/8/1975 Old Faithful 7:32:05 1:12:49 03:33 7:23:26 08:39 00:21 4/8/1975 Old Faithful 8:42:45 1:10:40 04:18 8:34:50 07:55 02:09 4/8/1975 Old Faithful 9:50:35 1:07:50 03:44 9:48:42 01:54 02:50 00:41 00:29 4/8/1975 Old Faithful 11:04:58 1:14:23 03:40 10:56:31 08:27 06:32 03:43 0:29-? 4/8/1975 Old Faithful 12:15:23 1:10:25 04:36 12:06:11 09:11 140' 03:58 02:35 00:24 0:09-0:45 4/8/1975 Old Faithful 13:25:47 1:10:24 02:21 13:21:41 04:06 115'strng wnd 00:01 03:57 00:44 0:29-1:06 4/8/1975 Old Faithful 14:14:48 0:49:01 04:39 14:04:02 10:46 120'strng wnd 21:22 21:22 00:36 0:30-0:59 4/8/1975 Old Faithful 15:33:42 1:18:54 01:57 15:24:25 09:18 125'strng wnd 29:53 08:31 00:35 0:23-0:48 4/8/1975 Old Faithful 16:26:27 0:52:44 04:25 16:16:34 09:52 140' 26:10 03:43 00:39 0:21-0:56 4/8/1975 Old Faithful 17:48:57 1:22:31 03:40 17:27:13 21:44 125' 29:47 03:36 0:23-0:58 4/8/1975 Old Faithful 19:04:30 1:15:33 04:04 18:50:40 13:51 120-130' 06:58 22:49 0:17-0:55 4/8/1975 Old Faithful 20:10:23 1:05:53 03:48 20:04:51 05:32 09:40 02:43 0:27-? 4/8/1975 Old Faithful 21:21:19 1:10:56 01:55 21:13:47 07:31 05:03 04:37 4/8/1975 Old Faithful 22:10:24 0:49:05 04:47 22:06:56 03:28 21:51 16:48 4/8/1975 Castle 0:08:35 ie Lo 8oF Hi 22oF 4/8/1975 Dome active am 4/8/1975 Grand 0:17:07 ie 4/9/1975 Old Faithful 6:16:29 03:31 ?6:16:16 ?0:13 4/9/1975 Old Faithful 7:29:29 1:13:00 02:05 7:18:25 11:04 4/9/1975 Old Faithful 8:24:57 0:55:28 04:43 8:18:45 06:12 17:32 0:21-0:57 4/9/1975 Old Faithful 9:36:57 1:12:00 02:12 9:35:33 01:23 16:31 01:00 00:21 4/9/1975 Old Faithful 10:28:10 0:51:13 04:29 10:26:31 01:38 20:46 04:15 4/9/1975 Old Faithful 11:48:04 1:19:54 01:38 11:36:33 11:38 135' 28:41 07:54 00:22 0:10-0:43 4/9/1975 Old Faithful 12:28:45 0:40:41 05:08 12:24:13 04:31 110' 39:13 10:32 00:54 0:49-1:12 4/9/1975 Old Faithful 13:48:15 1:19:30 02:30 13:41:16 06:59 140' 38:50 00:23 0:20-0:54 4/9/1975 Old Faithful 14:49:03 1:00:48 03:46 14:37:52 11:11 130' 18:42 20:07 00:33 0:18-0:50 4/9/1975 Old Faithful 16:05:07 1:16:04 03:51 15:56:25 08:43 115' 15:16 03:26 00:33 0:19-0:58 4/9/1975 Old Faithful 17:11:35 1:06:27 02:13 ~17:05:00 ~0:5:00-0:6:00 120' 09:37 05:39 00:21 0:11-0:52 4/9/1975 Old Faithful 18:05:46 0:54:11 04:44 18:05:46 00:00 134' 12:16 02:39 00:28 0:19-0:56 4/9/1975 Old Faithful 19:20:48 1:15:02 02:47 19:20:14 00:34 150' 20:50 08:34 00:12 0:9-0:42 4/9/1975 Old Faithful 20:32:08 1:11:20 04:46 20:16:35 15:33 03:42 17:09 0:14-? 4/9/1975 Old Faithful 21:54:04 1:21:56 04:16 21:36:40 17:24 10:36 06:54 4/9/1975 Beehive 21:39:00 ie steam phase 4/9/1975 Grand 20:16:00 ie Lo 6oF Hi 31oF 4/10/1975 Old Faithful 6:35:04 03:16 6:33:14 01:50 120'+ 00:39 0:28-1:03 4/10/1975 Old Faithful 7:34:41 0:59:37 04:21 7:33:26 01:15 115' 00:36 0:26-1:06 4/10/1975 Old Faithful 8:50:25 1:15:44 03:33 8:41:33 08:52 16:07 0:26-? 4/10/1975 Old Faithful 9:52:46 1:02:21 04:03 9:50:29 02:17 125' 13:23 02:44 00:25 0:9-0:42 4/10/1975 Old Faithful 11:04:00 1:11:14 02:06 11:03:43 00:17 120' 08:54 04:30 00:28 0:18-0:49 4/10/1975 Old Faithful 11:54:58 0:50:58 04:20 11:47:42 07:16 120' 20:16 11:23 00:38 0:19-0:46 4/10/1975 Old Faithful 13:16:10 1:21:12 04:04 13:01:58 14:12 120' 30:14 09:57 00:38 0:26-0:56 4/10/1975 Old Faithful 14:32:06 1:15:57 04:10 14:19:06 13:00 150'+ 05:15 24:58 00:24 0:18-0:55 4/10/1975 Old Faithful 15:45:11 1:13:04 01:38 15:29:49 15:15 135' 02:52 02:23 00:25 0:10-0:48 4/10/1975 Old Faithful 16:39:26 0:54:15 04:34 16:22:54 16:32 145' 18:49 15:57 00:27 0:17-0:54 4/10/1975 Old Faithful 17:51:30 1:12:04 03:53 17:47:11 04:19 110' 17:49 01:00 00:38 0:27-0:48 4/10/1975 Old Faithful 19:07:25 1:15:54 04:24 18:50:58 16:27 135' 03:50 13:59 00:32 0:12-0:52 4/10/1975 Old Faithful 20:18:13 1:10:49 02:00 20:14:09 04:05 05:05 01:16 4/10/1975 Old Faithful 21:06:18 0:48:05 04:33 21:01:21 04:56 22:44 17:39 4/10/1975 Old Faithful 22:20:03 1:13:45 01:53 22:19:52 00:12 25:40 02:56 4/10/1975 Beehive 10:26:47 d=4:57 4/10/1975 Beehive's Indicator 10:07:00 ie Lo 10oF Hi 38oF 4/10/1975 Fumarole/NW/Beehive 10:12:00 "steam<30""" 4/10/1975 Fumarole/NW/Beehive 10:20:00 4/10/1975 Fumarole/NW/Beehive 10:28:00 "steam<30""" 4/10/1975 Fumarole/NW/Beehive 10:36:00 "steam<30""" 4/10/1975 Fumarole/NW/Beehive 16:22:00 4/10/1975 Fumarole/NW/Beehive 16:30:00 d=19s H=9' 4/10/1975 Fumarole/NW/Beehive 16:37:00 4/10/1975 Little Squirt active 4/10/1975 Vault 14:06:00 4/10/1975 Vault 16:04:00 4/11/1975 Old Faithful 6:46:48 04:29 6:46:48 00:00 4/11/1975 Old Faithful 8:01:58 1:15:10 03:38 8:01:13 00:45 125' or more 00:34 0:17-0:54 4/11/1975 Old Faithful 9:14:25 1:12:27 03:27 9:07:28 06:57 02:43 0:53? 4/11/1975 Old Faithful 10:22:35 1:08:11 04:15 10:15:00 08:00 04:16 01:33 00:30 4/11/1975 Old Faithful 11:29:57 1:07:22 01:58 11:24:33 05:24 110' 00:49 03:27 00:34 0:24-0:39 4/11/1975 Old Faithful 12:26:02 0:56:05 04:47 12:14:29 11:33 135' 11:17 10:28 00:40 0:27-01:02 4/11/1975 Old Faithful 13:40:05 1:14:03 02:19 13:39:57 00:08 17:59 06:42 4/11/1975 Old Faithful 14:31:19 0:51:13 04:09 14:30:31 04:08 22:50 04:52 4/11/1975 Old Faithful 15:51:02 1:19:43 01:53 15:44:37 06:25 125' 28:30 05:40 00:33 0:20-0:54 4/11/1975 Old Faithful 16:42:57 0:51:56 04:08 27:48 00:42 4/11/1975 Old Faithful 17:57:46 1:14:49 02:03 17:51:12 06:34 22:53 04:55 4/11/1975 Old Faithful 19:01:00 1:03:14 04:32 18:42:53 18:08 140' 11:34 11:19 00:25 00:14 4/11/1975 Old Faithful 20:14:08 1:13:07 02:10 20:04:47 09:20 120'+ 09:53 01:41 00:45 0:35-? 4/11/1975 Old Faithful 21:01:13 0:47:05 04:22 21:00:47 00:25 26:02 16:09 4/11/1975 Old Faithful 22:13:57 1:12:44 03:59 22:13:57 00:00 25:39 00:23 4/11/1975 Beehive 11:35:14 d=5m36s 4/11/1975 Beehive's Indicator 11:25:00 ie Lo 7oF Hi 43oF 4/11/1975 Fumarole 11:18:00 4/11/1975 Fumarole 11:36:24 d=33s 4/11/1975 Fumarole 11:45:11 d=32s 4/12/1975 Old Faithful 6:47:17 04:41 6:47:17 00:00 130' 00:32 0:24-1:00 4/12/1975 Old Faithful 8:10:29 1:23:12 01:42 7:56:34 13:55 145'+ 00:21 0:08-0:48 4/12/1975 Old Faithful 8:50:50 0:40:21 04:07 8:50:50 00:00 42:50 4/12/1975 Old Faithful 10:04:56 1:14:06 01:46 10:01:07 03:48 120' 33:44 09:06 00:23 0:11-0:41 4/12/1975 Old Faithful 10:50:56 0:46:01 04:38 10:48:33 02:24 105' 28:05 05:39 00:40 0:24-0:57 4/12/1975 Old Faithful 12:16:21 1:25:24 01:43 12:01:11 15:10 145' 39:24 11:19 00:25 0:14-0:51 4/12/1975 Old Faithful 13:04:34 0:48:13 04:32 12:49:17 15:17 125' 37:11 02:13 00:39 0:30-1:01 4/12/1975 Old Faithful 14:18:45 1:14:10 01:56 14:16:50 01:54 120' 25:57 11:14 00:37 0:35-0:49 4/12/1975 Old Faithful 15:13:13 0:54:28 04:10 15:04:29 08:44 130' 19:42 06:15 00:31 0:14-0:46 4/12/1975 Old Faithful 16:24:11 1:10:58 04:19 16:22:48 01:24 120' 16:30 03:12 00:38 0:24-0:45 4/12/1975 Old Faithful 17:35:37 1:11:26 02:14 17:34:44 00:53 130' 00:28 16:02 00:32 0:20-0:48 4/12/1975 Old Faithful 18:29:00 0:53:23 04:54 18:20:38 08:22 130' 18:03 17:35 00:38 0:22-0:56 4/12/1975 Old Faithful 19:49:47 1:20:47 03:59 19:39:50 09:57 140'+ 27:24 09:21 0:21-? 4/12/1975 Old Faithful 20:58:00 1:08:13 01:54 20:52:48 05:12 12:34 14:50 4/12/1975 Old Faithful 21:45:33 4/13/1975 Old Faithful 6:41:35 04:33 6:41:35 00:00 130' 00:27 0:22-0:54 4/13/1975 Old Faithful 7:59:57 1:18:27 01:49 7:44:54 15:03 135' 00:40 0:27-1:06 4/13/1975 Old Faithful 8:49:36 0:49:39 04:31 8:41:31 08:05 28:43 0:17-? 4/13/1975 Old Faithful 10:18:16 1:28:39 02:00 9:55:44 22:31 150'+ 39:00 10:17 25:00 0:13-0:52 4/13/1975 Old Faithful 11:06:40 0:48:25 04:22 10:59:28 07:12 135' 40:15 01:14 29:00 0:15-0:51 4/13/1975 Old Faithful 12:19:07 1:12:27 02:31 12:16:07 03:00 125' 24:02 16:13 35:00 0:20-0:57 4/13/1975 Old Faithful 13:12:45 0:53:38 04:29 13:02:47 09:58 125' 18:48 05:14 25:00 0:15-0:46 4/13/1975 Old Faithful 14:26:51 1:14:06 03:55 14:25:27 01:23 110' 20:27 01:39 41:00 021-0:59 4/13/1975 Old Faithful 15:30:29 1:03:38 04:25 15:29:41 00:48 120' 10:28 09:59 35:00 0:23-0:55 4/13/1975 Old Faithful 16:47:55 1:17:27 01:55 16:39:54 08:01 120' 13:49 03:21 33:00 0:19-0:56 4/13/1975 Old Faithful 17:36:21 0:48:26 04:47 17:29:10 07:11 130' 29:01 15:12 41:00 0:26-0:52 4/13/1975 Old Faithful 18:58:44 1:22:23 02:28 18:47:49 10:55 145' 33:57 04:56 37:00 0:24-0:59 4/13/1975 Old Faithful 19:46:25 0:47:41 03:33+ 19:45:02 01:22 130' 34:42 00:45 25:00 0:09-0:49 4/13/1975 Old Faithful 21:02:18 1:15:53 01:44 20:56:32 05:46 28:12 06:30 4/13/1975 Old Faithful 21:51:43 0:49:25 04:33 21:46:32 05:11 26:28 01:44 4/13/1975 Beehive 11:20:00 Lo 3oF Hi 45oF 4/13/1975 Castle 10:00:00 4/13/1975 Inverted 15:02:02 stm13s/water23s 4/13/1975 Inverted 15:11:15 stm15s/water17s 4/13/1975 Vault 14:30:00 ie 4/13/1975 Vault 17:16:00 ie 4/13/1975 Vault 18:11:00 ie 4/13/1975 Vault 19:09:00 ie 4/14/1975 Old Faithful 7:00:48 02:01 6:59:53 00:55 120' 00:30 0:26-0:54 00:12 4/14/1975 Old Faithful 7:51:25 0:50:38 04:28 7:46:45 04:41 135' 00:35 0:23-0:59 00:16 4/14/1975 Old Faithful 9:11:55 1:20:30 02:01 9:01:08 10:47 130' 29:52 00:28 0:17-0:54 00:10 4/14/1975 Old Faithful 10:09:27 0:57:32 04:47 9:56:35 12:52 145' 22:58 06:54 00:35 0:20-0:56 00:15 4/14/1975 Old Faithful 11:30:38 1:21:11 03:53 11:14:23 16:15 130' 23:39 00:41 00:29 0:17-0:57 00:10 4/14/1975 Old Faithful 12:41:34 1:10:56 04:11 12:31:22 10:12 135' 10:15 13:24 00:31 0:18-0:52 00:12 4/14/1975 Old Faithful 13:52:12 1:10:38 04:05 13:43:36 08:35 135' 00:18 09:57 00:31 0:20-0:56 00:13 4/14/1975 Old Faithful 14:58:03 1:05:51 0:3:11+ 04:46 04:28 4/14/1975 Old Faithful 16:03:07 1:05:05 04:17 16:02:50 00:17 120' 00:46 04:00 00:34 0:18-0:47 00:11 4/14/1975 Old Faithful 17:23:53 1:20:45 04:09 17:15:53 07:59 125' 15:41 14:54 00:24 0:08:0:48 00:05 4/14/1975 Old Faithful 18:34:40 1:10:47 01:54 18:27:17 07:23 150' 09:58 05:43 00:33 0:22-0:58 00:14 4/14/1975 Old Faithful 19:22:54 0:48:14 04:38 19:18:58 03:56 120' 22:33 12:35 00:33 0:21-0:55 00:11 4/14/1975 Old Faithful 20:41:24 1:18:30 01:55 20:37:50 03:34 30:16 07:43 4/14/1975 Old Faithful 21:37:51 0:56:24 04:38 21:27:30 10:21 22:03 08:13 4/14/1975 Old Faithful 22:57:45 1:19:54 04:05 22:45:39 12:06 23:30 01:27 4/14/1975 Beehive 20:34:26 ie d=3m5s+ 4/14/1975 Inverted 10:40:18 d=32 Hi 45oF 4/14/1975 Inverted 10:48:05 stm 12 water 23 4/15/1975 Old Faithful 6:47:02 04:02 6:36:42 10:21 120' 00:26 0:21-1:01 00:17 4/15/1975 Old Faithful 7:59:46 1:12:44 04:10 7:48:11 11:35 150' 0:19-0:55 00:13 4/15/1975 Old Faithful 9:03:28 1:03:43 04:15 none 00:00 110' 09:01 00:34 0:17-0:53 00:07 4/15/1975 Old Faithful 10:16:13 1:12:45 03:46 10:06:56 09:17 115' 09:02 00:01 00:38 0:24-0:52 00:12 4/15/1975 Old Faithful 11:28:16 1:12:03 03:54 11:21:06 07:11 125' 00:42 08:20 00:29 0:23-? 00:11 4/15/1975 Old Faithful 12:36:27 1:08:11 04:11 12:28:52 07:35 110' 03:52 03:10 00:31 0:19-0:52 00:05 4/15/1975 Old Faithful 13:44:46 1:08:19 03:41 13:40:22 04:24 120'+ 00:08 03:44 0:20-? 00:07 4/15/1975 Old Faithful 14:56:08 1:11:22 04:23 14:55:29 00:40 125' 03:03 02:55 00:31 0:17-? 00:10 4/15/1975 Old Faithful 16:14:06 1:17:58 01:47 16:03:32 10:24 140' 06:36 03:33 00:23 0:07:-0:46 00:02 4/15/1975 Old Faithful 17:08:07 0:54:01 04:28 16:55:47 12:20 140' 23:57 17:21 00:24 0:11-0:42 00:03 4/15/1975 Old Faithful 18:17:18 1:09:11 03:41 18:17:04 00:14 120'+ 15:10 08:47 0:20-0:51 00:06 4/15/1975 Old Faithful 19:30:42 1:13:24 03:53 19:20:30 10:12 125' 04:13 10:57 00:36 0:24-0:56 00:12 1:29 4/15/1975 Old Faithful 20:41:36 1:10:54 01:49 20:31:55 09:41 02:30 01:43 00:09 4/15/1975 Old Faithful 21:37:57 0:56:21 04:43 21:23:08 14:49 14:33 12:03 00:07 4/15/1975 Old Faithful 22:58:59 1:21:02 03:47 22:44:32 14:27 24:41 10:08 00:07 4/15/1975 Beehive 7:19:00 ie d=4m Lo 24oF 4/15/1975 Beehive 18:23:15 d=5m29s Hi 42oF 4/15/1975 Beehive's Indicator 8:08:54 ie 4/15/1975 Grand 8:31:22 B1=9m20 P=34s 4/15/1975 Grand 8:31:22 B2=41s P=49s 4/15/1975 Grand 8:31:22 B3=37s d=12m1s 4/15/1975 Grand 15:36:00 ie 4/15/1975 Inverted 17:38:00 4/15/1975 Inverted 17:47:55 d=31s 4/16/1975 Old Faithful 6:38:17 04:42 6:37:11 1:06+ 4/16/1975 Old Faithful 8:03:12 1:24:55 01:53 7:53:50 9:22+ 00:05 4/16/1975 Old Faithful 8:46:06 0:42:54 04:27 8:45:59 00:07 120'+ 42:01 00:36 0:20-1:00 00:12 4/16/1975 Old Faithful 10:05:39 1:19:33 01:51 9:55:34 10:04 125' 36:39 05:22 00:28 0:16-0:53 00:07 17:00 4/16/1975 Old Faithful 10:45:49 0:40:10 04:46 none 00:00 115' 39:23 02:44 00:34 0:31-0:55 00:09 37:00 4/16/1975 Old Faithful 12:04:40 1:18:51 01:57 11:59:32 05:08 130' 38:41 00:42 00:23 0:09-0:44 00:03 01:01 16:00 4/16/1975 Old Faithful 13:02:40 0:58:00 04:39 12:49:57 12:44 155' 20:51 17:50 00:30 0:19-0:54 00:15 01:05 32:00 4/16/1975 Old Faithful 14:13:45 1:11:05 01:56 14:11:29 02:16 130' 13:05 07:46 00:16 0:15-0:47 00:06 01:02 24:00 4/16/1975 Old Faithful 15:08:21 0:54:36 04:32 14:55:44 12:37 135' 16:29 03:24 4/16/1975 Old Faithful 16:26:24 1:18:03 04:03 16:14:47 11:38 23:27 06:58 4/16/1975 Old Faithful 17:37:43 1:11:19 04:16 17:31:20 06:22 06:44 16:43 4/16/1975 Old Faithful 18:51:08 1:13:25 03:34 18:43:13 07:55 02:06 04:38 4/16/1975 Old Faithful 20:00:00 1:08:52 03:53 19:57:00 03:00 04:33 02:27 4/16/1975 Old Faithful 21:07:52 1:07:52 04:11 21:06:26 01:00 02:33 4/16/1975 Old Faithful 22:16:09 1:03:17 03:43 22:09:53 00:25 00:35 4/16/1975 Anemone very active 4/16/1975 Beehive 16:22:00 ie end 16:27 4/16/1975 Castle 18:34:00 ie 4/16/1975 Depression 9:35:00 ie 4/16/1975 Giantess 18:16:00 start>18:15 4/16/1975 Giantess 18:26:00 doming 4/16/1975 Giantess 18:45:12 "end1stB,d>19<29" 4/16/1975 Giantess ~18:48:00 B2=73 sec. 4/16/1975 Giantess 18:53:06 B3=48m48s 4/16/1975 Giantess ~19:23:06 H20 decreased 4/16/1975 Giantess 19:41:54 steam phase 4/16/1975 Giantess water d=75-85m 4/16/1975 Lion 13:24:00 d=3 1/4 4/16/1975 Round 19:29:00 4/16/1975 Spectacle 19:32:00 4/16/1975 Vault "dn 1""' @~20m" 4/16/1975 Vault "dn 11'"" @ 57m" 4/16/1975 Vault "dn 16'"" @~80-m" 4/16/1975 Vault "dn 5'"" @~49m" 4/17/1975 Old Faithful 6:31:06 00:36 07:33 135' 00:29 00:16 00:09 00:50 01:02 01:24 4/17/1975 Old Faithful 7:48:04 1:16:58 01:53 none 00:16 4/17/1975 Old Faithful 8:42:39 0:54:36 04:50 04:04 22:22 00:13 4/17/1975 Old Faithful 10:00:09 1:17:30 01:44 07:39 125'+ 22:54 00:32 00:30 00:19 00:10 4/17/1975 Old Faithful 10:40:55 1:40:46 04:53 00:36 36:44 13:50 00:23 4/17/1975 Old Faithful 12:01:51 1:20:56 01:57 08:58 125' 40:10 03:26 00:39 00:25 00:16 00:56 01:08 01:27 4/17/1975 Old Faithful 12:55:17 0:53:26 04:41 11:00 27:30 12:40 00:09 4/17/1975 Old Faithful 14:06:13 1:10:56 03:55 none 125' 17:30 10:00 09:30 00:23 00:11 4/17/1975 Old Faithful 15:14:58 1:08:37 04:16 01:14 120' 02:19 15:11 00:25 00:15 00:07 00:49 01:03 01:22 4/17/1975 Old Faithful 16:31:39 1:16:41 04:12 00:40 08:04 05:45 00:09 01:14 4/17/1975 Old Faithful 17:36:44 1:05:05 04:09 08:36 110' 11:36 03:32 00:37 00:31 00:23 00:57 01:18 01:32 4/17/1975 Old Faithful 18:52:28 1:15:44 04:34 13:47 120'+ 10:39 00:57 00:43 00:31 00:23 01:10 01:17 01:36 4/17/1975 Old Faithful 20:07:29 1:15:01 04:10 130' 00:43 09:56 00:18 00:16 00:09 00:47 01:04 01:22 4/17/1975 Old Faithful 21:16:10 1:08:41 03:59 02:43 06:20 05:37 00:20 4/17/1975 Old Faithful 22:21:07 1:04:57 04:12 03:44 02:36 00:16 4/17/1975 Beehive 14:48:05 d=5:48 4/17/1975 Giantess 7:13:00 d=7m( thumps) 4/17/1975 Giantess 8:03:00 ie d=50m 4/17/1975 Giantess 8:42:00 "d~9m, 39m" 4/17/1975 Giantess 9:26:42 d=9m5s I~44m 4/17/1975 Giantess 10:04:45 "d=7m40s,38m33s" 4/17/1975 Giantess 10:37:12 "d=7m36s,32m27s" 4/17/1975 Giantess 11:10:00 33m 4/17/1975 Giantess 12:01:00 51m 4/17/1975 Giantess 12:39:00 "d~8m,38m" 4/17/1975 Giantess 13:10:00 31m 4/17/1975 Giantess 13:58:00 "d~8m,48m" 4/17/1975 Giantess 15:47:00 d~9m 4/17/1975 Giantess 16:05:00 "d=32m,interBs" 4/17/1975 Giantess 17:38:51 ie 4/17/1975 Giantess 18:23:00 ie 4/17/1975 Giantess 20:21:00 4/17/1975 Grand 16:08:00 4/17/1975 Inverted 9:19:00 4/17/1975 Inverted 9:26:00 4/17/1975 Inverted 9:35:00 4/17/1975 Inverted 9:44:00 4/17/1975 Inverted 9:53:00 4/17/1975 Inverted 10:01:00 4/17/1975 Inverted 10:10:00 4/17/1975 Inverted 10:18:00 4/17/1975 Inverted 10:25:00 4/17/1975 North Goggles 0:15:51 4/17/1975 Vault 6:59:00 below ledge 26m 4/17/1975 Vault 13:51:00 4/17/1975 Vault 15:24:00 4/17/1975 Vault 17:17:00 4/18/1975 Old Faithful 6:38:35 04:08 none 130' 00:30 00:19 00:14 00:52 01:08 01:28 4/18/1975 Old Faithful 7:48:47 1:10:12 00:26 03:04 125' 00:27 00:17 4/18/1975 Old Faithful 9:04:56 1:16:09 02:35+ 13:06 05:57 00:29 00:11 4/18/1975 Old Faithful 10:17:29 1:12:33 02:08 12:07 130' 03:36 02:21 00:28 00:16 00:09 00:53 01:13 01:31 4/18/1975 Old Faithful 11:03:09 0:45:40 04:45 00:21 105' 26:53 23:17 00:40 00:30 00:25 01:04 01:17 01:34 4/18/1975 Old Faithful 12:22:33 1:19:24 03:43 06:56 120' 33:44 10:27 00:35 00:24 00:11 00:46 01:03 01:21 4/18/1975 Old Faithful 13:23:1X ~1:00:37 ~4 ~18:47 ~15:57 4/18/1975 Old Faithful 14:48:18 1:25:18 01:54 13:40 105' 24:41 05:54 00:32 00:04 00:48 4/18/1975 Old Faithful 15:37:48 0:49:30 04:30 07:35 115' 35:48 11:07 00:38 00:24 00:11 00:55 4/18/1975 Old Faithful 17:05:03 1:27:15 04:12 19:31 120' 37:45 01:57 00:20 00:14 00:06 00:41 4/18/1975 Old Faithful 18:31:08 1:26:05 02:07 22:46 130' 10:00 36:35 00:31 00:25 00:15 00:54 4/18/1975 Old Faithful 19:17:52 0:46:44 04:45 02:23 115' 39:21 38:11 00:37 00:24 00:14 00:58 4/18/1975 Old Faithful 20:30:53 1:13:01 03:29 00:11 115' 26:17 13:04 00:30 00:23 00:09 00:55 4/18/1975 Old Faithful 21:33:08 1:02:15 02:04 00:11 10:46 15:31 00:11 4/18/1975 Old Faithful 22:21:51 0:48:43 04:25 03:46 13:32 02:46 00:17 4/18/1975 Depression 13:27:00 4/18/1975 Giantess 6:28:00 4/18/1975 Giantess 7:33:00 4/18/1975 Giantess 8:29:00 ie 4/18/1975 Giantess 10:07:40 4/18/1975 Giantess 11:40:20 d=6:55 4/18/1975 Giantess 13:01:00 "<2, minor" 4/18/1975 Round 12:53:00 4/18/1975 Vault 13:00:00 ie 4/18/1975 Vault 13:59:00 4/19/1975 Old Faithful 6:09:15 03:40 04:05 135' 00:27 00:20 00:11 01:00 01:08 01:25 4/19/1975 Old Faithful 7:06:20 0:57:05 04:16 ~1+ 100' 00:42 00:27 00:57 01:16 01:24 4/19/1975 Old Faithful 8:21:52 1:15:32 02:36 06:39 150'+/160' 18:27 00:17 00:14 00:09 00:47 01:02 01:10 4/19/1975 Old Faithful 9:18:40 0:56:48 03:41 06:41 125' 18:44 00:17 00:26 00:19 00:10 01:03 01:19 4/19/1975 Old Faithful 10:28:37 1:09:57 03:45 00:47 135' 13:09 05:35 00:30 00:24 00:13 00:51 01:07 01:19 4/19/1975 Old Faithful 11:50:50 1:22:13 04:12 28:13 145' 12:16 00:53 00:25 00:12 00:16 00:49 01:59 01:11 4/19/1975 Old Faithful 12:59:46 1:08:56 04:07 13:08 120' 13:17 01:01 00:34 00:24 00:10 00:54 01:02 01:16 4/19/1975 Old Faithful 14:16:21 1:16:34 02:00 13:14 110' 07:38 05:39 00:31 00:21 00:07 00:48 01:01 01:13 4/19/1975 Old Faithful 15:01:13 0:44:52 04:40 03:51 125' 31:42 24:04 00:41 00:27 00:18 01:01 01:13 01:27 4/19/1975 Old Faithful 16:21:46 1:20:33 01:50 04:20 130' 35:41 03:59 00:22 00:11 00:08 00:46 01:00 01:06 4/19/1975 Old Faithful 17:17:43 0:55:17 04:21 09:15 120' 24:36 11:05 00:38 00:24 00:12 00:53 01:04 01:16 4/19/1975 Old Faithful 18:32:07 1:14:24 02:02 03:50 110' 18:27 06:09 00:34 00:24 00:16 00:57 01:04 01:24 4/19/1975 Old Faithful 19:19:39 0:47:32 04:17 02:26 120' 26:52 08:25 00:40 00:30 00:21 01:02 01:12 01:25 4/19/1975 Old Faithful 20:41:31 1:21:51 01:51 07:14 145' 34:19 07:27 00:31 00:21 00:14 00:53 01:06 01:23 4/19/1975 Old Faithful 21:25:13 0:43:42 04:32 05:29 38:09 03:50 00:09 4/19/1975 Old Faithful 22:38:13 1:13:00 03:47 00:47 29:18 08:51 00:11 4/19/1975 Beehive 8:58:00 ie end 9:01:20 4/19/1975 Beehive 18:14:46 4/19/1975 Round 9:55:00 4/19/1975 Round 18:31:00 4/20/1975 Old Faithful 6:54:55 03:44 02:29 120'+ 00:29 00:24 00:10 00:55 01:04 01:13 4/20/1975 Old Faithful 8:03:06 1:08:11 3:15-4:15 08:49 00:15 4/20/1975 Old Faithful 9:10:34 1:07:28 01:50 07:35 00:43 4/20/1975 Old Faithful 10:03:35 0:53:02 04:27 12:05 140' 14:26 13:43 00:23 00:11 00:11 00:47 00:57 01:08 4/20/1975 Old Faithful 11:22:13 1:18:48 02:13 ?2:34 125' 25:46 11:20 00:37 00:27 00:27 00:59 01:10 01:15 4/20/1975 Old Faithful 12:16:27 0:54:04 03:34 >2:58 130' 24:44 01:02 00:16 00:15 00:15 00:44 01:00 01:08 4/20/1975 Old Faithful 13:34:41 1:18:14 04:04 07:39 120' 24:10 00:34 00:18 00:15 00:15 00:40 01:02 01:12 02:14 4/20/1975 Old Faithful 14:45:51 1:11:10 03:52 05:33 125' 07:05 17:06 00:35 00:20 00:20 00:53 01:05 01:25 03:26 4/20/1975 Old Faithful 15:58:05 1:12:15 02:04 02:10 130' 01:05 06:00 00:24 00:11 00:11 00:49 00:59 01:22 01:45 4/20/1975 Old Faithful 16:48:50 0:50:44 04:19 05:04 115' 21:31 20:26 00:42 00:31 00:31 00:54 01:07 01:18 02:20 4/20/1975 Old Faithful 18:11:09 1:22:19 01:52 09:03 130' 31:36 10:15 00:33 00:15 00:15 00:52 01:02 01:19 01:36 4/20/1975 Old Faithful 18:54:25 0:43:16 04:16 02:57 115' 39:04 07:28 00:34 00:22 00:13 00:53 01:10 01:18 02:43 4/20/1975 Old Faithful 20:07:10 1:12:45 03:14 00:47 130' 29:29 09:35 00:40 00:27 00:20 00:53 08:00 01:23 01:51 4/20/1975 Old Faithful 21:16:47 1:09:37 04:26 11:49 03:08 26:21 00:18 4/20/1975 Old Faithful 22:29:36 1:12:49 02:04 06:28 03:12 00:04 4/20/1975 Beehive 18:53:00 ie end 18:54 4/20/1975 Castle 11:42:00 ie 4/20/1975 Castle 20:59:00 4/20/1975 Grand 16:04:00 ie 4/20/1975 Round 16:43:00 4/20/1975 Spectacle 16:05:00 ie 4/21/1975 Old Faithful 6:19:13 01:54 11:41 110' 00:25 00:19 00:13 00:51 01:06 01:19 01:32 4/21/1975 Old Faithful 7:04:02 0:44:53 04:28 00:20 115' 00:26 00:21 00:07 00:45 01:01 01:16 03:47 4/21/1975 Old Faithful 8:24:49 0:20:45 02:36 09:27 125' 35:54 00:33 00:20 00:08 00:51 01:01 01:18 02:23 4/21/1975 Old Faithful 9:21:49 0:57:00 04:11 09:07 140' 23:45 12:08 00:25 00:08 00:02 00:47 01:01 01:22 02:58 4/21/1975 Old Faithful 10:32:22 1:10:33 03:44 00:24 110' 13:33 10:12 00:30 00:06 01:00 01:12 02:31 4/21/1975 Old Faithful 11:44:18 1:11:56 04:27 05:31 155' 01:23 12:09 00:18 00:13 09:54 01:09 01:27 02:19 4/21/1975 Old Faithful 12:58:55 1:14:37 03:51 08:33 130' 02:40 01:17 00:31 00:25 00:16 00:55 01:08 01:19 02:19 4/21/1975 Old Faithful 14:11:00 1:12:05 04:28 13:37 110' 02:31 00:09 00:28 00:16 00:09 00:45 01:01 03:00 4/21/1975 Old Faithful 15:21:35 1:10:35 short 1:27+ 06:22 120' 01:31 01:00 00:35 00:19 00:16 00:52 01:10 01:14 01:27 4/21/1975 Old Faithful 16:08:05 0:46:30 04:39 04:23 105' 24:04 22:33 00:44 00:35 00:15 01:05 01:18 02:16 4/21/1975 Old Faithful 17:19:53 1:11:48 02:32 02:54 105' 25:18 01:14 01:05 01:02 00:45 01:27 01:39 01:59 4/21/1975 Old Faithful 18:16:39 0:56:36 04:18 12:37 125' 15:13 10:06 00:22 00:15 00:09 00:48 00:57 01:17 02:35 4/21/1975 Old Faithful 19:26:33 1:10:04 04:02 02:02 120' 13:28 01:44 00:29 00:23 00:11 00:53 01:05 01:26 4/21/1975 Old Faithful 20:38:21 1:11:49 02:29 03:36 01:45 11:44 00:27 00:19 00:58 01:39 01:41 4/21/1975 Old Faithful 21:37:38 0:59:16 04:26 13:29 12:33 10:48 00:07 4/21/1975 Old Faithful 22:51:32 1:13:54 03:48 05:06 14:38 02:05 00:11 4/21/1975 Depression 8:38:00 4/21/1975 Riverside 8:01:00 4/21/1975 Round 10:15:50 d=47s 4/21/1975 Spectacle 8:12:07 d=68s 4/21/1975 Spectacle 9:11:45 d=77s 4/21/1975 Spectacle 10:15:50 4/22/1975 Old Faithful 6:55:57 02:10 01:01 105' 00:51 00:42 00:20 00:58 01:14 01:23 01:44 4/22/1975 Old Faithful 7:41:28 0:45:30 04:30 05:15 120' 00:37 00:23 00:14 00:55 01:09 01:22 02:22 4/22/1975 Old Faithful 9:03:06 1:22:39 ~2 07:24 135' 36:08 00:52 00:37 00:28 4/22/1975 Old Faithful 9:49:41 0:46:35 04:37 07:40 115' 35:04 01:05 00:32 00:12 00:56 01:07 01:19 02:21 4/22/1975 Old Faithful 11:01:16 1:11:35 03:14 00:06 115' 25:00 10:04 00:30 00:19 00:12 00:42 00:59 01:15 01:29 4/22/1975 Old Faithful 12:02:05 1:00:49 04:45 05:38 120' 10:46 14:15 00:40 00:37 00:21 01:08 01:13 01:23 02:19 4/22/1975 Old Faithful 13:22:08 1:20:03 02:06 11:37 120' 19:13 08:28 00:47 00:34 00:32 01:07 01:16 01:31 01:47 4/22/1975 Old Faithful 14:19:22 0:57:14 04:37 19:46 120' 22:49 02:36 00:35 00:22 00:19 01:00 01:07 01:23 03:00 4/22/1975 Old Faithful 15:29:31 1:10:09 02:09 01:13 140' 12:56 09:53 00:32 00:25 00:22 01:02 01:12 01:21 01:43 4/22/1975 Old Faithful 16:24:07 0:54:36 04:43 07:21 110' 15:34 02:38 00:46 00:37 01:13 01:33 01:39 02:30 4/22/1975 Old Faithful 17:35:03 1:10:56 01:56 01:47 115'+ 16:21 00:47 00:20 00:10 01:59 01:03 01:19 01:36 4/22/1975 Old Faithful 18:25:50 0:50:47 04:48 00:13 115' 20:09 03:48 00:46 00:27 00:18 01:58 01:11 01:30 02:37 4/22/1975 Old Faithful 19:49:32 1:23:42 02:02 13:00 130' 32:55 12:46 00:42 00:27 00:20 01:03 01:09 01:30 01:39 4/22/1975 Old Faithful 20:49:16 0:59:44 04:56 17:31 23:58 08:57 00:16 4/22/1975 Old Faithful 22:03:09 1:13:53 02:06 02:34 14:09 09:49 00:13 4/22/1975 Dome active am 4/22/1975 Grand 18:35:00 ie 4/23/1975 Old Faithful 6:22:37 03:44 09:46 130' 00:27 00:16 00:08 00:46 00:54 01:10 02:04 4/23/1975 Old Faithful 7:36:48 1:13:50 04:18 11:03 130'+ 00:17 00:16 00:09 00:54 01:02 01:18 02:33 4/23/1975 Old Faithful 8:41:07 1:04:19 04:09 00:13 110' 09:31 00:45 00:44 00:26 01:03 01:16 01:35 02:37 4/23/1975 Old Faithful 9:52:55 1:11:48 04:06 06:27 140' 07:29 02:02 00:31 00:20 00:15 00:57 01:06 01:23 02:31 4/23/1975 Old Faithful 11:05:00 1:12:06 04:17 09:17 150'+? 00:18 07:11 00:24 00:18 00:16 00:52 01:09 01:20 02:08 4/23/1975 Old Faithful 12:24:42 1:19:42 01:56 13:37 130' 07:36 07:18 00:30 00:20 00:08 00:54 01:05 01:16 4/23/1975 Old Faithful 13:16:20 0:51:38 04:42 10:02 145' 28:04 20:28 00:23 00:20 00:12 01:21 02:25 4/23/1975 Old Faithful 14:29:32 1:13:12 01:47 130'+ 21:35 06:29 00:17 00:15 00:07 00:55 01:21 01:29 4/23/1975 Old Faithful 15:19:54 0:50:22 04:27 08:42 120'+ 22:50 01:16 00:38 00:24 00:18 00:58 01:11 01:27 02:15 4/23/1975 Old Faithful 16:32:45 1:12:51 03:54 05:09 125' 22:28 00:22 00:38 00:26 00:18 01:01 01:08 01:24 01:40 4/23/1975 Old Faithful 17:37:49 1:05:04 04:31 02:20 105' 07:47 14:42 00:44 00:28 00:19 01:03 01:14 01:27 02:40 4/23/1975 Old Faithful 18:49:34 0:11:45 03:52 03:13 120' 06:41 01:06 00:28 00:19 00:15 00:49 01:09 01:19 01:38 4/23/1975 Old Faithful 19:56:06 1:06:32 04:28 02:18 05:13 01:28 00:16 4/23/1975 Old Faithful 21:06:57 1:10:51 02:05 03:25 04:19 00:54 00:14 4/23/1975 Old Faithful 22:33:35 0:56:38 04:22 15:03 14:13 09:54 00:12 4/23/1975 Beehive 12:22:52 d=5m51s 4/23/1975 Dome active pm 4/24/1975 Old Faithful 5:56:53 04:07 01:56 120-130' 00:31 00:22 00:15 00:43 01:12 01:35 4/24/1975 Old Faithful 7:11:24 1:14:31 02:10 13:11 120' 00:41 00:38 00:21 01:02 01:14 01:24 01:42 4/24/1975 Old Faithful 7:55:38 0:44:14 04:37 00:36 120' 30:17 00:32 00:18 00:08 00:51 01:02 01:26 02:42 4/24/1975 Old Faithful 9:31:13 1:35:35 01:57 21:34 51:21 21:04 00:31 00:19 00:13 00:57 01:03 01:19 01:40 4/24/1975 Old Faithful 10:14:02 0:42:49 04:31 none 125' 52:46 01:25 00:35 00:25 00:52 01:06 01:35 02:32 4/24/1975 Old Faithful 11:35:42 1:21:41 01:55 09:17 110' 38:52 13:54 00:28 00:25 00:16 00:58 01:05 01:19 01:39 4/24/1975 Old Faithful 12:19:36 0:43:54 04:34 10:27 130' 37:47 01:05 00:29 00:27 00:18 00:49 01:13 01:37 02:34 4/24/1975 Old Faithful 13:33:37 1:14:01 02:07 02:44 110' 30:07 07:40 00:49 00:36 00:26 01:02 01:15 01:22 01:45 4/24/1975 Old Faithful 14:23:29 0:49:52 04:30 01:10 125' 24:08 05:58 00:25 00:23 00:11 00:53 01:07 01:25 02:32 4/24/1975 Old Faithful 15:36:15 1:12:46 03:30 22:53 01:15 4/24/1975 Old Faithful 16:50:49 1:14:34 02:24 09:28 01:48 21:05 00:30 4/24/1975 Old Faithful 17:47:14 0:56:25 04:40 14:11 130' 18:09 16:21 00:31 00:16 00:10 00:53 01:02 01:18 02:23 4/24/1975 Old Faithful 19:05:23 1:18:09 04:01 09:08 115' 21:44 03:35 00:29 00:18 00:09 00:50 00:57 01:27 02:16 4/24/1975 Old Faithful 20:19:38 1:14:15 04:31 12:58 120' 03:55 17:50 00:40 00:27 00:16 01:03 01:10 01:25 01:50 4/24/1975 Old Faithful 21:40:47 1:21:09 02:06 14:34 06:54 02:59 00:13 4/24/1975 Beehive 14:00:00 ie d=5m10s 4/24/1975 Castle 16:39:00 ie water 4/25/1975 Old Faithful 6:42:48 03:33 02:38 00:07 4/25/1975 Old Faithful 7:53:45 1:10:57 04:06 03:15 155' 00:23 00:13 00:07 00:55 01:07 01:16 02:18 4/25/1975 Old Faithful 9:14:52 1:21:07 04:42 10:00 145' 10:10 00:42 00:28 00:21 01:04 01:17 01:33 02:32 4/25/1975 Old Faithful 10:25:49 1:10:57 04:04 03:02 10:10 00:00 00:26 00:19 00:49 01:00 01:14 01:32 4/25/1975 Old Faithful 11:39:22 1:13:33 01:57 08:33 135' 02:36 07:34 00:27 00:10 00:05 00:48 01:02 01:15 01:36 4/25/1975 Old Faithful 12:27:21 0:47:59 05:18 07:34 120' 25:34 22:58 00:45 00:35 00:25 01:04 01:17 01:26 02:41 4/25/1975 Old Faithful 13:47:56 1:20:35 02:00 135' 32:36 07:02 00:26 00:19 00:12 00:53 00:59 01:13 01:43 4/25/1975 Old Faithful 14:44:25 0:56:29 04:57 19:13 140' 24:06 08:30 00:31 00:23 00:17 00:53 01:02 01:26 02:42 4/25/1975 Old Faithful 16:06:50 1:22:25 04:09 13:17 115' 25:56 01:50 00:38 00:28 00:14 01:01 01:10 01:28 01:55 4/25/1975 Old Faithful 17:12:20 1:05:30 04:41 115' 16:54 09:01 4/25/1975 Old Faithful 18:27:10 1:14:50 03:28 10:12 130' 09:20 07:35 00:29 00:12 01:10 01:32 4/25/1975 Old Faithful 19:42:17 1:15:07 04:18 12:36 145' 00:18 09:02 00:30 00:15 00:07 00:57 01:26 02:32 4/25/1975 Old Faithful 20:54:25 1:12:08 01:52 07:06 02:59 02:41 00:10 4/25/1975 Old Faithful 21:41:26 0:47:01 04:46 02:35 25:07 22:08 00:13 4/25/1975 Old Faithful 23:05:08 1:23:42 01:52 08:24 36:41 11:34 4/25/1975 Beehive 13:20:20 d=5m21s 4/25/1975 Beehive's Indicator 13:14:00 ie 4/25/1975 Grand 9:46:00 ie 4/25/1975 Grand 16:08:00 4/26/1975 Old Faithful 6:32:09 04:11 none 115' 00:27 00:13 00:05 01:14 01:39 4/26/1975 Old Faithful 7:49:04 1:16:55 02:20 09:30 00:27 4/26/1975 Old Faithful 8:42:06 0:53:02 04:38 11:21 140' 23:53 00:32 00:26 00:23 01:02 01:15 01:41 02:54 4/26/1975 Old Faithful 10:00:04 1:17:58 04:06 06:43 125' 24:56 01:03 00:33 00:18 00:12 00:57 01:09 01:22 02:05 4/26/1975 Old Faithful 11:10:48 1:10:44 03:28 07:14 17:42 00:11 4/26/1975 Old Faithful 12:16:54 1:06:06 01:49 00:08 04:38 02:37 00:06 00:51 00:58 01:10 01:26 4/26/1975 Old Faithful 13:22:25 1:05:31 04:40 19:32 00:35 04:03 00:11 01:01 01:12 01:19 02:31 4/26/1975 Old Faithful 14:52:25 1:30:00 03:49 18:13 24:29 23:53 00:14 4/26/1975 Old Faithful 16:06:46 1:14:21 04:23 12:53 135' 15:39 08:50 00:23 00:16 00:08 00:45 00:59 01:03 02:19 4/26/1975 Old Faithful 17:23:55 1:17:09 04:10 11:05 130' 02:48 12:51 00:22 00:12 00:06 00:49 00:59 01:06 02:11 4/26/1975 Old Faithful 18:38:28 1:14:33 04:15 15:51 145' 02:36 00:12 00:30 00:16 00:11 00:51 01:00 01:11 02:25 4/26/1975 Old Faithful 19:46:30 1:08:02 01:45 01:42 125' 06:31 03:55 00:34 00:21 00:13 00:50 01:04 01:20 01:24 4/26/1975 Old Faithful 20:36:39 0:50:10 3:17-3:59 06:51 17:52 11:21 00:15 00:09 4/26/1975 Old Faithful 21:51:05 1:14:26 02:00 04:28 24:16 06:24 00:17 4/26/1975 Old Faithful 22:38:54 0:47:49 04:33 04:00 26:37 02:21 00:15 4/26/1975 Beehive 12:49:00 ie d=4 1/2m 4/27/1975 Old Faithful 6:55:26 03:51 11:05 135' 00:22 00:11 00:08 00:45 4/27/1975 Old Faithful 8:00:06 1:04:41 04:23 1+ 100' 00:34 00:19 00:49 4/27/1975 Old Faithful 9:25:03 1:24:56 03:45 14:17 110'+ 20:16 00:22 00:15 4/27/1975 Old Faithful 10:27:39 1:02:37 04:24 01:13 120' 22:20 02:04 00:42 00:36 00:29 01:02 4/27/1975 Old Faithful 11:36:53 1:09:13 03:51 0:2:25+ 110'+ 06:37 15:43 00:25 00:15 00:07 00:48 00:57 01:15 02:06 4/27/1975 Old Faithful 12:43:41 1:06:48 04:07 08:38 120' 02:25 04:12 00:23 4/27/1975 Old Faithful 14:01:58 1:18:17 02:03 13:12 120' 11:29 09:04 00:26 00:18 00:10 00:52 01:05 01:15 01:43 4/27/1975 Old Faithful 14:43:36 0:41:39 04:49 03:38 115' 36:39 25:09 00:28 00:18 00:08 00:49 01:05 01:21 02:17 4/27/1975 Old Faithful 16:15:19 1:31:42 01:53 17:20 130' 50:04 13:25 00:25 00:15 00:08 00:50 00:58 01:14 01:38 4/27/1975 Old Faithful 16:57:08 0:41:50 04:40 00:21 115' 49:53 00:11 00:38 00:33 00:17 00:53 01:05 01:16 02:36 4/27/1975 Old Faithful 18:18:15 1:21:07 01:53 07:28 120' 39:17 10:35 00:28 00:17 00:10 00:46 01:01 01:15 01:33 4/27/1975 Old Faithful 19:05:09 0:46:54 04:29 06:36 120' 34:13 05:04 00:35 00:25 00:16 00:49 01:02 01:24 02:18 4/27/1975 Old Faithful 20:26:30 1:21:21 02:00 10:07 130' 34:28 00:14 00:44 00:34 00:21 01:06 01:16 01:28 01:47 4/27/1975 Old Faithful 21:14:23 0:47:53 04:33 04:17 33:28 01:00 00:27 4/27/1975 Old Faithful 22:31:56 1:17:33 01:41 07:01 40:00 03:48 00:12 4/27/1975 Beehive 11:36:00 d=5m30s 4/27/1975 Bulger 14:57:00 ie 4/27/1975 Lion 10:16:00:ie 4/27/1975 Lion 12:18:00 4/27/1975 Old Tardy 14:57:00 ie 4/28/1975 Old Faithful 6:30:56 04:13 19:04 155' 00:23 00:17 00:11 00:55 01:05 01:22 4/28/1975 Old Faithful 7:38:58 1:08:02 03:59 07:30 150' 00:26 00:15 00:06 00:51 01:08 01:12 03:14 4/28/1975 Old Faithful 8:55:48 1:16:50 03:57 18:25 145' 08:48 00:40 00:32 00:21 01:07 01:12 01:30 02:10 4/28/1975 Old Faithful 10:07:09 1:11:21 04:16 08:03 115' 05:29 03:19 00:34 00:32 00:17 01:05 01:12 01:28 02:30 4/28/1975 Old Faithful 11:16:20 1:09:11 01:58 00:13 130' 02:10 03:19 00:21 00:18 00:11 00:51 01:10 01:21 01:38 4/28/1975 Old Faithful 12:09:26 0:53:06 04:41 07:00 125' 16:06 13:56 00:37 00:30 00:19 00:59 01:09 01:28 02:31 4/28/1975 Old Faithful 13:28:04 1:18:38 02:02 05:26 120' 25:32 09:26 00:44 00:32 00:24 01:04 01:16 01:43 01:47 4/28/1975 Old Faithful 14:21:34 0:53:30 04:40 13:49 110' 25:08 00:24 00:25 00:16 00:09 00:52 01:04 01:14 02:25 4/28/1975 Old Faithful 15:43:01 1:21:26 01:53 09:02 125' 27:56 02:48 00:35 00:24 00:09 00:54 01:12 01:20 01:39 4/28/1975 Old Faithful 16:36:10 0:53:09 04:32 13:58 130'+ 28:17 00:21 00:20 <00:14 00:08 00:47 01:55 01:06 02:05 4/28/1975 Old Faithful 17:47:03 1:10:53 02:16 00:12 120'+ 17:44 10:33 00:40 00:32 01:11 01:25 01:34 01:50 4/28/1975 Old Faithful 18:41:16 0:54:14 04:28 12:00 145' 16:40 01:04 00:31 00:15 00:06 00:53 01:10 01:18 02:30 4/28/1975 Old Faithful 19:53:00 1:11:45 02:01 00:23 100' 17:32 00:52 00:39 00:33 00:17 00:53 01:05 01:25 01:46 4/28/1975 Old Faithful 20:41:09 0:48:09 0:3:58+ 05:08 100'+ 23:36 06:04 00:44 00:40 00:23 01:11 01:17 01:36 02:27 4/28/1975 Old Faithful 22:00:04 1:18:55 01:50 13:03 30:46 07:10 00:08 4/28/1975 Castle 10:58:00 ie 4/28/1975 Giantess 5:59:00 ie 4/28/1975 Giantess 6:52:20 d=7:54/water/sm 4/28/1975 Giantess 7:19:06 d=7:27 4/28/1975 Giantess 8:08:55 d=~6:58 4/28/1975 Giantess 8:34:09 d=7:07 4/28/1975 Giantess ~9:02:00 d=~6 4/28/1975 Giantess ~9:34:00 d=7:25 4/28/1975 Giantess 10:01:00 end 10:09 4/28/1975 Giantess ~10:40:00 end 10:46 4/28/1975 Giantess 11:15:00 d=8:41 4/28/1975 Giantess 11:55:00 d=8 4/28/1975 Giantess 13:10:00 d=o~9 4/28/1975 Giantess 13:53:00 ie 4/28/1975 Giantess 15:13:00 ie end 15:22 4/28/1975 Giantess 16:03:00 ie 4/28/1975 Giantess 16:36:00 4/28/1975 Giantess 18:14:00 ie 4/28/1975 Giantess 19:33:35 1B 4/28/1975 Giantess 19:55:00 4/28/1975 Giantess 20:15:00 crickets/Giantess 4/28/1975 Giantess 20:51:00 4/28/1975 Giantess 21:55:00 ie 4/28/1975 Grand 7:18:40 end 7:31:28 4/28/1975 Round 11:37:00 4/28/1975 Vault 6:52:20 D below ledge 4/28/1975 Vault 20:15:00 just above ledge 4/29/1975 Old Faithful 6:47:56 04:14 ~12:00 125' 00:27 00:20 00:14 00:51 01:03 01:18 02:28 4/29/1975 Old Faithful 7:54:37 1:06:40 03:50 04:12 120' 00:38 00:25 00:17 00:58 01:11 01:23 02:33 4/29/1975 Old Faithful 9:06:23 1:11:47 04:14 08:27 105' 05:06 00:34 00:19 00:11 00:49 01:06 01:17 02:45 4/29/1975 Old Faithful 10:14:16 1:07:53 ~1:50 04:07 105' 03:54 01:12 00:31 00:18 00:11 00:51 01:07 01:22 01:46 4/29/1975 Old Faithful 11:15:10 1:00:54 04:40 3:03+ 110' 06:59 03:05 00:23 00:15 00:06 00:36 01:00 01:20 4/29/1975 Old Faithful 12:28:37 1:13:27 04:07 07:03 110' 12:33 05:34 00:34 00:31 00:11 00:43 00:58 01:14 02:30 4/29/1975 Old Faithful 13:40:51 1:12:14 04:15 03:53 115' 01:13 11:20 00:30 00:17 00:10 00:53 00:59 01:14 02:22 4/29/1975 Old Faithful 14:55:25 1:14:34 04:24 11:20 130' 02:20 01:07 00:34 00:23 00:13 00:56 01:09 01:31 01:09 4/29/1975 Old Faithful 16:00:33 1:05:08 04:09 01:42 110' 09:26 07:06 00:49 00:32 00:25 01:04 01:17 01:32 4/29/1975 Old Faithful 17:12:19 1:11:46 02:03 none 130'+ 06:38 02:48 00:35 00:20 00:15 01:00 01:08 01:24 01:49 4/29/1975 Old Faithful 18:01:37 0:49:18 04:42 03:43 130' 22:28 15:50 00:32 00:20 00:11 00:55 01:05 01:26 02:56 4/29/1975 Old Faithful 19:14:15 1:12:38 02:20 04:30 130'+ 23:20 00:52 00:46 00:40 00:33 01:14 01:28 01:39 02:05 4/29/1975 Old Faithful 20:08:41 0:54:26 04:30 07:36 130'+ 18:12 05:09 00:19 00:18 00:11 00:51 01:08 01:21 02:53 4/29/1975 Old Faithful 21:34:42 1:26:01 03:50 17:56 31:35 13:23 00:11 4/29/1975 Old Faithful 22:49:05 1:14:23 03:59 14:07 11:39 19:57 00:07 4/29/1975 Castle 8:10:00 4/29/1975 Giantess 8:15:00 filled 2' over vent 4/29/1975 Vault 8:15:00 filled over ledge 4/30/1975 Old Faithful ~5:43:00 ~5:43:00 S 4/30/1975 Old Faithful 6:33:30 6:33:30 04:23 01:46 135' 00:29 00:20 00:12 00:59 4/30/1975 Old Faithful 7:47:02 1:13:33 03:36 02:35 23:03 00:32 00:16 00:58 01:20 01:33 02:26 4/30/1975 Old Faithful 8:51:27 1:04:25 04:13 none 09:07 13:55 00:11 4/30/1975 Old Faithful 10:04:23 1:12:56 02:03 07:53 110'+ 09:31 00:36 00:22 00:15 4/30/1975 Old Faithful 11:04:02 0:59:39 04:21 14:49 13:17 04:46 00:10 4/30/1975 Old Faithful 12:13:42 1:09:40 01:56 01:08 10:00 03:17 00:17 4/30/1975 Old Faithful 13:08:56 0:55:13 04:43 15:54 14:26 04:26 00:19 4/30/1975 Old Faithful 14:22:07 1:13:12 01:52 07:26 110'+ 17:58 03:32 00:18 00:11 00:56 01:09 01:24 01:43 4/30/1975 Old Faithful 15:10:53 0:48:46 04:30 03:44 130' 24:26 06:28 00:37 00:25 00:16 00:53 01:10 01:37 02:54 4/30/1975 Old Faithful 16:33:02 1:22:09 02:08 09:07 33:23 08:57 4/30/1975 Old Faithful 17:19:18 0:46:16 04:37 02:54 110' 35:53 02:30 00:44 00:34 00:27 01:04 01:15 01:29 03:17 4/30/1975 Old Faithful 18:37:37 1:18:19 02:02 07:01 110' 32:03 03:50 00:47 00:38 00:21 01:00 01:14 01:28 01:49 4/30/1975 Old Faithful 19:23:12 0:45:35 05:08 05:29 105' 32:44 00:41 01:06 01:01 00:44 01:26 01:40 01:49 03:05 4/30/1975 Old Faithful 20:38:36 1:15:24 04:01 00:25 120'+ 29:49 02:55 00:39 00:29 00:20 4/30/1975 Old Faithful 21:48:45 1:10:09 03:54 05:15 24:34 00:19 4/30/1975 Old Faithful 22:57:38 1:08:53 03:50 02:48 01:16 03:58 00:04 4/30/1975 Beehive 9:22:05 d=5m11s 4/30/1975 Beehive 19:58:00 4/30/1975 Beehive's Indicator 8:51:00 d=<15m 4/30/1975 Castle 12:07:00 ie 4/30/1975 Castle 21:34:17 4/30/1975 Grand 11:47:00 ie 4/30/1975 Grand 19:26:01 "5B,d=12m58s" 4/30/1975 Grand 19:26:01 "B1=7m18,P=36s" 4/30/1975 Grand 19:26:01 "B2=29s,P=48s" 4/30/1975 Grand 19:26:01 "B3=35s,P=61s" 4/30/1975 Grand 19:26:01 "B4=38s,P=64s" 4/30/1975 Grand 19:26:01 B5=29s 4/30/1975 Riverside 19:41:00 5/1/1975 Old Faithful 0:05:28 1:07:50 04:06 02:32 01:03 00:13 00:10 5/1/1975 Old Faithful 5:41:00 04:02 no wind 5/1/1975 Old Faithful 6:55:34 1:14:34 01:51 ~7 00:11 5/1/1975 Old Faithful 7:46:23 0:50:49 04:25 07:47 140' 23:45 00:26 00:20 00:13 5/1/1975 Old Faithful 9:06:19 1:19:56 02:02 16:01 29:07 05:22 5/1/1975 Old Faithful 9:52:25 0:46:06 04:42 02:10 140' 33:51 04:43 00:28 00:27 00:21 01:01 01:18 01:31 03:31 5/1/1975 Old Faithful 11:09:05 1:16:39 03:39 06:43 120' 30:33 03:17 00:28 00:20 00:11 00:54 01:03 01:12 02:18 5/1/1975 Old Faithful 12:20:00 1:10:55 04:33 08:40 120' 05:44 24:49 00:32 00:29 00:56 01:08 01:21 02:25 5/1/1975 Old Faithful 13:39:07 1:19:07 02:11 12:20 130' 08:12 02:28 00:06 00:35 01:14 01:42 5/1/1975 Old Faithful 14:26:28 0:47:21 04:39 06:42 105' 31:46 23:34 00:33 00:26 00:14 00:52 01:04 01:18 02:15 5/1/1975 Old Faithful 15:45:17 1:18:50 03:49 08:47 135' 31:29 00:17 00:33 00:20 00:13 00:49 01:02 01:18 01:43 5/1/1975 Old Faithful 16:49:21 1:04:04 04:12 00:30 14:46 16:43 00:28 00:23 00:11 00:40 00:58 01:15 01:27 5/1/1975 Old Faithful 18:11:00 1:21:39 02:02 15:51 130' 17:35 02:49 00:35 00:24 00:17 00:51 01:07 01:20 01:34 5/1/1975 Old Faithful 18:56:08 0:45:09 04:29 07:24 36:30 18:55 00:23 00:15 01:02 01:12 01:24 02:21 5/1/1975 Old Faithful 20:12:47 1:16:38 02:08 00:58 125' 31:30 05:00 00:32 00:25 00:16 01:22 01:26 01:46 5/1/1975 Old Faithful 21:01:07 0:48:21 04:46 01:18 28:18 03:12 00:08 5/1/1975 Beehive 9:21:35 d=5:10 5/1/1975 Castle 6:50:00 ie 5/1/1975 Castle 15:29:00 5/1/1975 Depression 9:00:00 5/1/1975 Depression 15:49:00 5/1/1975 Lion 9:59:00 ie 5/1/1975 Lion 12:18:00 5/1/1975 Lion 16:18:00 ie 2+ 5/1/1975 Lion 21:03:00 5/1/1975 Riverside 7:47:29 5/1/1975 Riverside 13:56:17 5/1/1975 Riverside 19:48:02 5/2/1975 Old Faithful 6:25:46 02:00 00:48 135' 00:35 00:22 00:14 5/2/1975 Old Faithful 7:18:14 0:52:29 04:35 09:16 135' 00:22 00:18 00:15 00:56 01:11 01:58 02:37 5/2/1975 Old Faithful 8:41:51 1:23:37 04:07 16:25 31:08 00:05 5/2/1975 Old Faithful 9:57:20 1:15:29 01:56 ~2 08:08 23:00 5/2/1975 Old Faithful 10:46:49 0:49:29 04:22 07:42 130' 26:00 17:52 00:33 00:21 00:16 00:54 01:06 01:22 02:54 5/2/1975 Old Faithful 11:57:34 1:10:44 04:03 ~2:00 105' 21:15 04:45 00:39 00:23 00:16 00:59 01:05 01:23 01:36 5/2/1975 Old Faithful 13:05:49 1:08:15 02:03 05:29 120' 02:29 18:46 00:29 00:23 00:16 00:54 01:05 01:24 01:37 5/2/1975 Old Faithful ~13:51:50 0:46:02 00:00 22:13 19:44 00:30 00:46 01:02 01:12 02:33 5/2/1975 Old Faithful 15:14:38 1:22:48 02:10 08:24 125' 36:46 14:33 00:41 00:31 00:24 01:05 01:13 01:25 01:52 5/2/1975 Old Faithful 16:03:16 0:48:37 04:38 05:10 110' 34:11 02:35 00:43 00:28 00:20 00:58 01:11 01:37 03:05 5/2/1975 Old Faithful 17:36:11 1:32:56 01:51 19:33 120' 44:18 10:08 00:31 00:21 00:08 00:42 01:05 01:12 01:37 5/2/1975 Old Faithful ~18:13:00 0:37:00 L 56:00 12:00 5/2/1975 Old Faithful 19:31:45 1:19:00 02:23 03:33 130' 42:00 14:00 00:23 00:17 00:10 00:54 01:04 01:25 01:38 5/2/1975 Old Faithful 20:42:21 1:10:36 04:43 21:34 175'+ 08:00 34:00 00:16 00:13 00:56 01:02 01:19 02:22 5/2/1975 Old Faithful 21:51:16 1:08:55 02:08 00:34 01:41 06:00 00:15 5/2/1975 Old Faithful 22:42:37 0:51:21 04:22 ?01:36 17:34 15:53 00:06 5/2/1975 Beehive 10:09:02 d=4m54 5/2/1975 Beehive's Indicator 9:55:00 ie 5/2/1975 Castle 9:53:00 ie 5/2/1975 Castle 18:59:00 ie 5/2/1975 Grand 12:59:00 ie 5/2/1975 Grand 19:52:00 ie 5/2/1975 Riverside 8:02:01 5/2/1975 Riverside 14:38:21 5/2/1975 Riverside 20:29:57 5/3/1975 Old Faithful 0:00:21 1:17:44 02:04 05:17 26:23 08:49 00:13 5/3/1975 Old Faithful 5:42:16 04:12 01:43 100' 00:33 00:29 00:10 00:43 01:05 01:15 01:35 5/3/1975 Old Faithful 6:58:09 1:15:53 01:58 00:59 130' 00:40 00:29 00:20 01:06 01:12 01:25 01:44 5/3/1975 Old Faithful 7:58:25 1:00:16 04:32 21:05 135' 15:37 00:40 00:22 00:18 00:58 01:10 01:23 02:27 5/3/1975 Old Faithful 9:09:09 1:10:44 03:50 none 110' 10:28 05:09 00:20 00:19 00:11 00:40 00:59 01:22 02:00 5/3/1975 Old Faithful 10:16:10 1:07:01 04:43 00:24 110' 03:43 06:45 00:47 00:37 00:15 01:02 01:15 01:26 02:03 5/3/1975 Old Faithful 11:29:52 1:13:42 01:47 03:23 100' 06:41 02:58 00:36 00:30 00:14 00:52 00:59 01:16 01:30 5/3/1975 Old Faithful 12:28:47 0:58:55 04:36 10:15 145' 14:47 08:06 00:27 00:16 00:09 00:46 01:02 01:15 02:09 5/3/1975 Old Faithful 13:48:03 1:19:16 01:55 09:38 130' 20:21 05:34 00:37 00:23 00:18 01:04 01:12 01:28 01:40 5/3/1975 Old Faithful 14:34:19 0:46:16 04:36 04:29 135' 33:00 12:39 00:39 00:22 00:14 00:56 01:03 01:18 02:19 5/3/1975 Old Faithful 15:48:48 1:14:29 03:23 02:13 110' 28:13 04:47 00:40 00:32 00:15 01:01 01:11 01:17 01:34 5/3/1975 Old Faithful 17:02:22 1:13:35 04:31 00:09+ 100'+ 05:04 27:18 00:39 00:27 00:21 01:06 01:14 01:30 01:56 5/3/1975 Old Faithful 18:03:13 1:00:51 04:02 09:26 110' 12:44 11:49 00:23 00:15 00:10 00:36 00:53 01:00 01:25 5/3/1975 Old Faithful 19:18:49 1:15:35 03:57 ~>12 130' 14:45 02:01 00:24 00:11 00:04 00:47 00:55 01:08 02:25 5/3/1975 Old Faithful 20:24:37 1:05:48 04:05 02:52 120' 09:47 04:57 00:28 00:15 00:03 00:46 00:54 01:12 01:26 5/3/1975 Old Faithful 21:31:57 1:07:20 04:08 01:32 08:15 00:10 5/3/1975 Old Faithful 22:41:57 1:10:00 04:12 07:09 02:40 01:08 00:10 5/3/1975 Beehive 10:05:00 d=5 1/4m 5/3/1975 Beehive 20:38:00 d=5 1/2 5/3/1975 Castle 13:00:00 ie 5/3/1975 Depression 20:21:00 5/3/1975 Dome 7:03:00 ie 5/3/1975 Riverside 8:49:52 r.spout 26m/befor 5/3/1975 Riverside 8:49:52 uvsplsh14m/befor 5/3/1975 Riverside 14:36:00 ie 5/3/1975 Riverside 20:17:40 5/4/1975 Old Faithful 0:03:21 1:21:24 04:05 14:32 11:24 08:44 00:26 5/4/1975 Old Faithful 5:51:27 04:10 08:14 00:10 00:03 5/4/1975 Old Faithful 7:10:22 1:18:25 01:59 13:19 5/4/1975 Old Faithful 7:54:38 0:44:16 04:44 00:59 34:09 5/4/1975 Old Faithful 9:18:56 1:24:18 01:55 09:30 40:02 05:53 00:26 5/4/1975 Old Faithful 10:00:18 0:41:22 04:48 none 125' 42:56 02:54 00:41 00:33 00:18 01:04 01:17 02:58 5/4/1975 Old Faithful 11:16:10 1:15:52 02:05 07:13 105' 34:30 08:26 00:35 00:24 00:18 00:49 01:07 01:17 01:38 5/4/1975 Old Faithful 12:12:19 0:56:08 04:40 11:25 110' 19:44 14:46 00:24 00:15 00:08 00:50 01:01 01:15 02:30 5/4/1975 Old Faithful 13:24:04 1:11:45 04:20 02:28 115' 15:37 04:07 00:27 00:21 00:06 00:40 00:58 01:15 02:11 5/4/1975 Old Faithful 14:45:15 1:21:11 01:57 05:09 09:26 06:11 00:20 00:13 5/4/1975 Old Faithful 15:26:43 0:41:28 04:17 none 39:43 30:17 5/4/1975 Old Faithful 16:41:38 1:14:55 02:35 02:01 115' 33:27 06:16 00:26 00:17 00:09 01:18 01:28 5/4/1975 Old Faithful 17:40:52 0:59:14 04:45 05:23 120'+ 15:41 17:46 00:28 00:19 00:14 02:35 5/4/1975 Old Faithful 19:00:07 1:19:15 04:01 11:07 135' 20:01 04:20 00:26 00:19 00:13 00:53 01:05 01:18 01:37 5/4/1975 Old Faithful 20:04:43 1:04:35 02:11 00:33 130' 14:40 05:52 00:25 00:10 00:13 00:56 01:04 01:15 01:33 5/4/1975 Old Faithful 20:54:24 0:49:41 04:27 none 14:54 00:14 00:11 5/4/1975 Beehive 15:36:57 d=5m9s 5/4/1975 Beehive's Indicator 17:23:00 ie 5/4/1975 Bonita Pool ~10:26 began refill 5/4/1975 Daisy 8:15-8:45? 5/4/1975 Daisy 10:28:00 d=~3 1/2m 5/4/1975 Daisy 14:04:00 ie end 14:07:05 5/4/1975 Dome active 5/4/1975 Grand 13:30:00 VR 5/4/1975 Grand 20:08:00 ie 3B 5/4/1975 Grotto Fountain 20:23:00 5/4/1975 North Goggles 11:52:00 5/4/1975 Oblong 9:11:00 5/4/1975 Riverside 8:38:04 5/4/1975 Riverside 14:23:15 d=19m40 5/4/1975 Riverside 20:23:29 5/4/1975 South Grotto Fountain 20:24:00 5/4/1975 Spectacle 15:38:00 5/4/1975 Splendid late5/3or early5/4 5/4/1975 Splendid 10:26:00 d=~6m 5/5/1975 Old Faithful 6:06:56 04:09 05:31 115'+ 00:31 00:26 00:13 5/5/1975 Old Faithful 7:16:46 1:09:50 04:08 08:39 130' 00:35 00:24 00:11 01:02 01:23 01:54 5/5/1975 Old Faithful 8:34:00 1:17:14 03:59 ~15 145' 07:25 00:41 00:51 00:58 02:10 5/5/1975 Old Faithful 9:50:02 1:16:01 04:14 11:24 120'+ 01:13 06:12 00:34 00:27 00:11 01:20 01:31 02:47 5/5/1975 Old Faithful 10:55:52 1:05:51 04:20 01:58 10:11 08:58 00:20 5/5/1975 Old Faithful 12:06:10 1:10:18 03:54 07:09 120'+ 04:27 05:43 00:28 00:20 01:28 02:11 5/5/1975 Old Faithful 13:13:37 1:07:27 04:05 02:31 115' wind 02:51 01:36 00:35 00:24 00:17 01:01 01:13 01:22 02:38 5/5/1975 Old Faithful 14:38:00 1:24:23 04:21 18:42 16:56 14:05 00:16 5/5/1975 Old Faithful 15:52:24 1:14:24 04:23 11:38 09:59 06:57 5/5/1975 Old Faithful 17:07:21 1:14:57 04:16 10:29 00:33 09:26 00:16 5/5/1975 Old Faithful 18:21:01 1:13:40 02:11 12:41 125' 01:17 00:44 00:39 00:26 00:11 00:58 01:15 01:24 01:41 5/5/1975 Old Faithful 19:06:42 0:45:41 04:56 09:00 115'+ 28:00 26:43 00:34 00:24 00:16 01:00 01:12 01:21 02:40 5/5/1975 Old Faithful 20:22:57 1:16:14 02:06 00:44 120' wind 30:34 02:34 00:31 00:28 00:13 00:51 01:05 01:24 01:40 5/5/1975 Old Faithful 21:10:51 0:47:54 04:41 none 28:20 02:14 00:16 5/5/1975 Old Faithful 22:25:01 1:14:10 03:32 01:13 26:16 02:04 00:17 5/5/1975 Old Faithful 23:34:51 1:09:50 04:21 05:19 04:26 21:56 00:10 5/5/1975 Beehive 15:49:59 d=5m34 stm2m23 5/5/1975 Beehive's Indicator 15:34:00 ie 5/5/1975 Bonita 8:00:00 drained 5/5/1975 Castle 7:48:00 5/5/1975 Daisy 7:55:00 ie 5/5/1975 Daisy 14:42:00 5/5/1975 Depression 14:32:00 5/5/1975 Pyramid 20:16:00 5/5/1975 Riverside 8:15:35 5/5/1975 Riverside 14:17:17 back ind. 14:02 5/5/1975 Riverside 20:04:16 back ind 3m splsh 5/5/1975 Splendid 14:42:00 5/5/1975 Splendid during night 5/6/1975 Old Faithful 0:50:03 1:15:12 01:58 03:27 05:22 01:02 00:14 5/6/1975 Old Faithful 6:05:13 02:32 04:07 115' 00:44 00:33 00:25 01:10 01:17 01:30 01:46 5/6/1975 Old Faithful 7:03:26 0:58:13 04:26 07:07 00:13 01:32 02:32 5/6/1975 Old Faithful 8:21:01 1:17:35 01:52 02:53 145' 19:21 00:28 00:15 00:10 00:54 01:07 01:17 01:37 5/6/1975 Old Faithful 9:02:55 0:41:54 04:54 01:51 125' 35:41 16:20 00:39 00:30 00:21 00:51 01:16 01:29 02:44 5/6/1975 Old Faithful 10:23:14 1:20:19 01:51 05:41 130' 38:25 02:45 00:20 00:14 00:07 00:51 00:59 01:17 01:32 5/6/1975 Old Faithful 11:10:00 0:46:46 04:41 01:14 130' 33:33 04:52 00:27 00:26 00:17 01:02 01:10 01:22 02:29 5/6/1975 Old Faithful 12:32:18 1:22:18 03:48 10:15 130' 35:32 01:58 00:27 00:13 00:04 00:44 00:54 01:11 02:16 5/6/1975 Old Faithful 13:40:56 1:08:38 04:32 ~8 120' 13:39 21:52 00:26 00:22 00:55 01:08 01:19 02:31 5/6/1975 Old Faithful 15:03:01 1:22:05 01:55 14:45 135' 13:27 00:12 00:28 00:15 00:12 00:47 00:59 01:10 01:45 5/6/1975 Old Faithful 15:52:28 0:49:27 04:31 07:58 140' 32:38 19:11 00:25 00:13 00:07 00:52 01:03 01:14 02:33 5/6/1975 Old Faithful 17:11:23 1:18:54 01:52 06:42 120' 29:27 03:11 00:28 00:23 00:09 00:52 01:06 01:21 01:29 5/6/1975 Old Faithful 18:02:50 0:51:27 04:34 12:15 130' 27:27 02:00 00:28 00:16 00:13 00:54 01:03 01:22 02:54 5/6/1975 Old Faithful 19:20:29 1:17:38 04:12 05:46 145' 26:11 01:16 00:31 00:20 00:13 00:52 01:03 01:23 02:11 5/6/1975 Old Faithful 20:27:30 1:07:02 04:47 03:36 135' 10:36 15:35 00:33 00:22 00:16 01:04 01:13 01:32 02:02 5/6/1975 Old Faithful 21:42:30 1:15:00 02:06 07:38 07:58 02:38 00:07 5/6/1975 Old Faithful 22:37:44 0:55:14 04:48 06:33 19:46 11:48 00:17 5/6/1975 Old Faithful 23:56:18 1:18:34 02:01 07:24 23:20 03:34 00:18 5/6/1975 Beehive 14:03:00 ie steam phase 5/6/1975 Riverside 20:45:00 ie end 20:48 5/7/1975 Old Faithful 5:26:35 01:52 00:25 00:05 5/7/1975 Old Faithful 6:51:10 0:48:35 04:43 04:07 00:08 5/7/1975 Old Faithful 7:28:47 1:13:36 02:02 02:25 130' 25:01 00:26 00:28 00:21 01:04 01:10 01:25 01:37 5/7/1975 Old Faithful 8:23:47 0:55:01 4 1/2 09:13 18:36 06:25 00:24 5/7/1975 Old Faithful 9:41:42 1:17:55 02:34 28:00 120' wind 22:54 04:28 00:47 00:39 00:19 01:12 01:20 01:30 01:44 5/7/1975 Old Faithful 10:29:34 0:47:52 04:36 01:02 120' 30:03 07:09 00:21 00:14 00:07 00:55 01:04 01:22 02:33 5/7/1975 Old Faithful 11:50:45 1:21:11 01:45 14:33 135' 33:19 03:16 00:20 00:12 00:08 00:50 00:58 01:14 01:30 5/7/1975 Old Faithful 12:35:34 0:44:49 04:58 01:15 130' 36:22 03:03 00:30 00:23 00:53 01:03 01:21 02:31 5/7/1975 Old Faithful 13:56:38 1:21:04 02:03 10:12 36:15 00:07 00:19 5/7/1975 Old Faithful 14:41:52 0:45:14 04:36 08:00 35:50 00:25 00:27 00:14 00:57 01:11 01:17 02:18 5/7/1975 Old Faithful 16:08:06 1:26:14 02:11 15:23 41:00 05:10 00:34 5/7/1975 Old Faithful 16:55:21 0:47:15 04:23 11:17 135' 38:59 02:01 00:33 00:19 00:10 00:56 01:07 01:23 02:17 5/7/1975 Old Faithful 18:08:58 1:13:37 02:09 01:02 26:21 12:37 00:28 5/7/1975 Old Faithful 18:58:48 0:49:50 04:33 06:00 135'+ 23:46 02:35 00:31 00:12 00:10 00:54 01:08 01:28 02:43 5/7/1975 Old Faithful 20:10:13 1:11:25 04:01 01:15 120' 21:35 02:11 00:26 00:25 00:17 00:58 01:17 01:30 02:18 5/7/1975 Old Faithful 21:35:56 1:25:43 04:01 22:37const. 14:18 07:17 00:11 5/7/1975 Old Faithful 22:42:33 1:06:37 02:10 03:44 19:06 04:48 00:22 5/7/1975 Beehive 12:42:35 d~5 5/7/1975 Castle 12:48:00 5/7/1975 Grand 17:29:00 ie 5/7/1975 Oblong 17:11:00 ie 5/7/1975 Riverside 20:33:00 5/8/1975 Old Faithful 5:41:23 04:30 00:19 00:11 5/8/1975 Old Faithful 7:55:57 04:15 none 120' 00:28 00:17 00:09 00:58 01:04 01:19 02:07 5/8/1975 Old Faithful 9:07:49 1:11:52 04:19 02:18 130' 00:33 00:19 00:13 00:55 01:07 01:26 01:44 5/8/1975 Old Faithful 10:18:09 1:10:20 01:48 03:35 115' 01:32 00:27 00:16 00:08 00:50 01:01 01:06 01:28 5/8/1975 Old Faithful 11:13:24 0:55:15 04:19 15:02 140'+ 15:05 13:33 00:26 00:16 00:09 02:16 5/8/1975 Old Faithful 12:22:50 1:09:26 03:51 00:54 110' 14:11 00:54 00:34 00:22 00:14 00:56 01:05 01:22 01:37 5/8/1975 Old Faithful 13:33:16 1:10:26 0:3:11+ 05:37 01:00 13:11 00:09 5/8/1975 Old Faithful 14:36:55 1:03:39 04:39 02:00+ 125' 06:47 05:47 00:39 00:27 00:17 01:06 01:15 01:34 02:00 5/8/1975 Old Faithful 15:54:50 1:17:55 01:53 06:02 14:16 07:29 00:11 5/8/1975 Old Faithful 16:39:28 0:44:38 04:48 ~04:00 33:17 19:01 00:15 5/8/1975 Old Faithful 17:59:54 1:20:26 01:51 07:15+ 145' 35:48 02:31 00:24 00:22 00:14 01:08 01:27 01:35 5/8/1975 Old Faithful 18:50:57 0:51:03 04:23 07:54 155' 29:23 06:25 00:33 00:15 00:10 01:06 01:16 02:42 5/8/1975 Old Faithful 20:14:04 1:23:07 02:08 11:41 140' 32:04 02:41 00:20 00:18 00:12 00:52 00:59 01:19 01:38 5/8/1975 Old Faithful 21:02:47 0:48:44 0:4:16+ 04:05 34:23 02:19 00:36 00:22 5/8/1975 Old Faithful 22:27:15 1:24:28 02:21 16:56 35:44 01:21 00:11 5/8/1975 Old Faithful 23:15:47 0:48:32 04:37 04:02 35:57 00:12 00:11 5/8/1975 Beehive <13:33:16 VR 5/8/1975 Castle 8:41:00 ie end water 5/8/1975 Castle 17:15:00 ie 5/8/1975 Depression 20:08:00 5/8/1975 Lion 10:06:00 ie 5/8/1975 Lion 11:23:00 ie 5/8/1975 Oblong 19:52:00 5/8/1975 Riverside 8:21:00 squirt 5/8/1975 Riverside 8:52:00 not yet 5/8/1975 Riverside 15:20:35 5/9/1975 Old Faithful 5:30:19 04:50 none 130' 00:30 00:23 00:11 5/9/1975 Old Faithful 6:40:06 1:09:47 04:01 00:10 125'+ 00:28 00:22 00:09 5/9/1975 Old Faithful 7:56:56 1:16:50 03:39 11:58 135'+ 07:03 00:32 00:23 00:12 5/9/1975 Old Faithful 9:00:56 1:04:00 04:46 00:44 12:50 05:47 00:11 5/9/1975 Old Faithful 10:18:30 1:17:34 01:58 08:15 13:34 00:44 00:17 5/9/1975 Old Faithful 11:00:15 0:41:45 04:53 none 35:49 22:15 00:57 00:43 5/9/1975 Old Faithful 12:34:38 1:34:23 01:57 19:36 160' 52:38 16:49 00:33 00:14 00:59 01:09 01:21 01:40 5/9/1975 Old Faithful 13:16:53 0:42:15 04:45 01:18 115' 52:08 00:30 00:47 00:41 00:26 01:10 01:24 01:35 02:43 5/9/1975 Old Faithful 14:34:01 1:17:08 01:57 08:21 110' 34:53 17:15 00:34 00:26 00:10 00:53 01:11 01:17 01:34 5/9/1975 Old Faithful 15:22:07 0:48:06 04:35 04:03 115' 29:02 05:51 00:26 00:18 00:11 00:45 00:58 01:18 02:24 5/9/1975 Old Faithful 16:35:34 1:13:27 03:38 05:16 110' wind 25:21 03:42 00:37 00:23 01:04 01:13 01:23 02:37 5/9/1975 Old Faithful 17:48:03 1:12:29 04:04 12:23 00:58 24:23 00:14 5/9/1975 Old Faithful 18:59:40 1:11:38 01:56 11:37 120' 00:51 00:07 00:29 00:23 00:11 00:51 01:02 01:16 01:31 5/9/1975 Old Faithful 19:52:53 0:53:13 04:33 08:10 145' 18:25 17:34 00:25 00:15 00:05 01:03 01:20 02:18 5/9/1975 Old Faithful 21:07:12 1:14:19 02:36 none 21:06 02:41 00:25 5/9/1975 Old Faithful 22:00:09 0:52:57 04:16 10:19 21:22 00:16 00:16 5/9/1975 Old Faithful 23:08:22 1:08:13 04:06 00:12 15:16 06:06 00:17 5/9/1975 Beehive 13:56:00 ie end 13:58 5/9/1975 Castle 12:10:00 ie 5/9/1975 Castle 21:37:21 5/9/1975 Grand 18:31:00 3B 5/9/1975 Lion 19:25:00 ie 5/9/1975 Oblong 13:16:00 5/9/1975 Riverside 9:15:33 5/9/1975 Riverside 15:22:00 5/9/1975 Riverside 20:46:00 5/10/1975 Old Faithful 6:03:02 02:10 03:03 115' 00:46 00:34 00:26 01:06 01:27 01:42 5/10/1975 Old Faithful 6:50:08 0:47:06 04:37 02:50 110' 00:19 00:11 00:50 01:07 01:17 02:32 5/10/1975 Old Faithful 8:07:02 1:16:54 02:10 05:31 120'+ 29:48 00:24 00:16 01:26 5/10/1975 Old Faithful 8:52:02 0:45:00 04:38 00:12 120' 31:54 02:07 00:38 00:21 00:14 00:58 01:28 02:43 5/10/1975 Old Faithful 10:09:07 1:17:05 01:58 03:42 115' 32:05 00:11 00:34 00:23 00:13 00:51 01:07 01:24 01:35 5/10/1975 Old Faithful 11:10:03 1:00:56 ~04:46 19:07 130'+ 16:10 15:56 00:33 00:23 00:55 01:08 01:23 02:25 5/10/1975 Old Faithful 12:20:47 1:10:44 03:57 03:49 130' 09:48 06:21 00:29 00:19 00:11 00:54 01:02 01:15 02:30 5/10/1975 Old Faithful 13:29:03 1:08:16 02:27 06:01 125' 02:28 07:20 00:36 00:19 00:12 00:50 01:05 01:15 01:36 5/10/1975 Old Faithful 14:29:16 1:00:13 04:08 13:26 145' 08:03 05:35 00:35 00:23 00:15 01:06 01:14 01:36 02:43 5/10/1975 Old Faithful 15:44:27 1:15:12 03:58 05:08 130' 14:59 06:56 00:23 00:17 00:58 01:09 01:30 01:50 5/10/1975 Old Faithful 17:05:42 1:21:15 04:18 15:31 130' 06:03 08:56 00:42 00:32 00:27 01:01 01:13 01:32 02:22 5/10/1975 Old Faithful 18:12:49 1:07:07 01:50 11:42 120' 14:08 08:05 00:31 00:19 00:10 00:53 01:06 01:19 01:36 5/10/1975 Old Faithful 18:57:14 0:44:26 04:48 ~03:00 120' 22:41 08:33 00:33 00:21 00:13 00:57 01:07 01:19 02:21 5/10/1975 Old Faithful 20:24:02 1:26:48 01:57 14:50 140' 42:22 19:41 00:19 00:17 00:10 01:04 01:19 01:45 5/10/1975 Old Faithful 21:15:44 0:51:42 04:43 08:02 115'+ 35:06 07:16 00:40 00:31 00:23 5/10/1975 Old Faithful 22:38:09 1:22:25 01:59 10:34 30:43 04:23 00:12 5/10/1975 Old Faithful 23:30:08 0:51:59 04:23 09:49 30:26 00:17 00:07 5/10/1975 Beehive 10:04:12 d=4m39 stm3m34 5/10/1975 Beehive 19:58:01 d=5:04 5/10/1975 Beehive's Indicator 9:54:00 ie 5/10/1975 Castle ~6:50:00 5/10/1975 Castle 15:49:13 minor d~4m 5/10/1975 Castle 18:07:00 5/10/1975 Riverside 8:51:18 5/10/1975 Riverside 14:41:49 5/10/1975 Riverside 20:50:25 5/11/1975 Old Faithful 5:20:50 04:16 5/11/1975 Old Faithful 6:30:22 1:09:32 04:04 06:19 5/11/1975 Old Faithful 7:46:37 1:16:15 04:00 11:04 150' 06:43 00:28 00:15 00:06 00:51 01:07 01:18 02:17 5/11/1975 Old Faithful 8:51:47 1:05:09 04:19 02:22 115' 11:06 04:23 00:38 00:27 00:15 01:04 01:15 01:35 02:15 5/11/1975 Old Faithful 10:15:40 1:23:54 04:19 16:57 125' wind 18:44 07:38 00:22 00:15 00:53 01:06 01:17 02:19 5/11/1975 Old Faithful 11:28:30 1:12:50 04:00 08:39 130' wind 11:04 07:40 00:29 00:16 00:09 00:46 00:58 01:15 02:16 5/11/1975 Old Faithful 12:41:54 1:13:24 04:20 07:58 130' wind 00:34 10:30 00:34 00:19 00:16 00:59 01:10 01:26 02:02 5/11/1975 Old Faithful 13:54:03 1:12:09 04:12 09:35 120' wind 01:15 00:41 00:37 00:27 00:22 01:04 01:13 01:25 02:25 5/11/1975 Old Faithful 14:59:12 1:05:10 04:00 01:15 110' wind 06:59 05:44 00:37 00:31 00:13 00:48 01:09 01:23 02:08 5/11/1975 Old Faithful 16:10:48 1:11:35 04:33 02:36 125' wind 06:26 00:33 00:30 00:20 00:13 00:54 01:06 01:22 02:21 5/11/1975 Old Faithful 17:27:29 1:16:41 03:38 06:06 140' 05:06 01:20 00:32 00:07 00:50 00:56 01:06 01:41 5/11/1975 Old Faithful 18:30:21 1:02:53 04:39 none 13:48 08:43 00:19 5/11/1975 Old Faithful 19:42:30 1:12:09 03:44 02:46 120'+ 09:16 04:32 00:24 00:24 00:16 01:00 01:16 01:27 01:42 5/11/1975 Old Faithful 20:50:01 1:07:31 04:19 06:01 115' 04:38 04:38 00:30 00:17 00:09 00:54 01:08 01:19 01:39 5/11/1975 Old Faithful 22:08:08 1:18:07 04:12 09:32 10:36 05:58 00:23 5/11/1975 Old Faithful 23:11:12 1:03:04 03:58 00:15 15:03 04:27 00:10 5/11/1975 Beehive 7:21:00 5/11/1975 Beehive 17:56:42 d=4:52 5/11/1975 Beehive's Indicator 7:14:00 ie 5/11/1975 Castle 8:30:00 ie just beg. steam phase 5/11/1975 Grand 21:17:00 ie 5/11/1975 Great Fountain 14:53:00 ie 5/11/1975 Lion 8:58:00 d=4 5/11/1975 Lion 12:16:00 ie 5/11/1975 Rift 21:22:00 5/11/1975 Riverside 9:10:33 5/11/1975 Riverside 15:01:28 5/11/1975 Riverside 21:20:35 5/12/1975 Old Faithful 0:21:02 1:09:50 04:10 03:34 06:46 08:17 00:08 5/12/1975 Old Faithful 6:02:38 01:51 06:44 00:13 5/12/1975 Old Faithful 6:51:09 0:48:31 04:35 05:17 130'+ 00:29 00:20 00:08 00:49 01:01 01:16 02:03 5/12/1975 Old Faithful 8:03:26 1:12:17 01:58 01:31 115' 23:46 00:28 00:25 00:16 00:57 01:04 01:18 01:35 5/12/1975 Old Faithful 8:51:20 0:47:55 04:36 00:39 120' 24:22 00:36 00:30 00:23 00:15 00:47 01:01 01:14 03:40 5/12/1975 Old Faithful 10:03:15 1:11:55 03:23 00:31 120' 24:00 00:22 00:38 00:25 00:19 00:55 01:06 01:23 01:35 5/12/1975 Old Faithful 11:11:12 1:07:57 04:10 10:19 130'+ 03:58 20:02 00:27 00:25 00:12 00:57 01:13 01:22 01:34 5/12/1975 Old Faithful 12:29:52 1:18:40 04:24 06:58 145' 10:43 06:46 00:32 00:20 00:18 00:59 01:06 01:17 01:24 5/12/1975 Old Faithful 13:46:21 1:16:29 01:47 10:14 140' 02:11 08:33 00:21 00:11 00:05 00:43 00:54 01:10 01:36 5/12/1975 Old Faithful 14:29:38 0:43:17 04:41 00:34 110'+ 33:12 31:02 00:18 00:12 00:09 01:00 01:12 5/12/1975 Old Faithful 15:50:37 1:20:59 01:45 08:09 135' 37:42 04:30 00:25 00:17 00:11 00:50 01:00 01:14 01:33 5/12/1975 Old Faithful 16:40:05 0:49:27 04:42 13:34 135' 31:32 06:11 00:37 00:24 00:22 01:02 01:12 01:19 02:52 5/12/1975 Old Faithful 18:00:14 1:20:10 02:21 11:23 120' 30:42 00:49 00:32 00:23 00:16 00:52 01:02 01:22 01:37 5/12/1975 Old Faithful 18:49:44 0:49:29 04:34 none 120' 30:41 00:02 00:34 00:25 00:18 00:53 01:05 01:24 03:14 5/12/1975 Old Faithful 20:02:25 1:22:42 01:59 00:36 105' 33:13 02:32 00:25 00:24 00:16 00:47 01:10 01:18 01:37 5/12/1975 Old Faithful 20:51:29 0:49:04 04:40 00:16 125' 33:38 00:25 00:37 00:30 00:17 01:06 01:10 02:49 5/12/1975 Old Faithful 22:05:51 1:14:22 03:45 00:49 25:18 08:20 00:10 5/12/1975 Old Faithful 23:14:41 1:08:50 02:19 02:57 05:32 19:46 00:14 5/12/1975 Beehive 6:53:00 ie 6:58 end 5/12/1975 Beehive 18:10:35 d=5:29 5/12/1975 Castle 12:55:00 VR 5/12/1975 Castle 22:11:00 ie 5/12/1975 Great Fountain 21:18:00 5/12/1975 Lion 12:45:00 ie 5/12/1975 Lion 14:49:00 ie 5/12/1975 Riverside 9:42:23 5/12/1975 Riverside 15:56:10 5/13/1975 Old Faithful 4:48:54 4 3/4 5/13/1975 Old Faithful 6:05:10 1:16:16 02:08 05:01 125'+ 00:21 00:20 00:13 5/13/1975 Old Faithful 6:53:01 0:47:51 04:34 02:45 115'+ 28:25 00:40 00:28 00:16 01:01 01:13 01:26 02:23 5/13/1975 Old Faithful 8:10:43 1:17:42 02:13 05:26 135' 29:51 01:26 00:39 00:23 00:17 01:00 01:15 01:22 01:49 5/13/1975 Old Faithful 9:00:10 0:49:26 04:23 04:39 145' 28:16 01:35 00:31 00:19 00:14 00:53 01:08 01:27 02:32 5/13/1975 Old Faithful 10:23:33 1:23:23 01:47 16:01 130' 33:57 05:41 00:27 00:18 00:10 00:50 01:00 01:20 5/13/1975 Old Faithful 11:08:29 0:44:56 04:52 06:36 110' 38:27 04:30 00:43 00:32 00:15 00:59 01:09 01:23 02:30 5/13/1975 Old Faithful 12:27:59 1:19:30 01:53 05:04 130' 34:35 03:53 00:36 00:25 00:18 00:55 01:04 01:16 01:39 5/13/1975 Old Faithful 13:14:18 0:46:18 04:26 04:20 120' 33:12 01:23 00:28 00:26 00:18 00:59 01:15 01:22 02:24 5/13/1975 Old Faithful 14:25:15 1:10:57 03:57 04:23 120' 24:39 08:33 00:52 00:31 00:17 00:58 01:03 01:14 01:34 5/13/1975 Old Faithful 15:38:18 1:13:04 03:46 08:30 130' 02:06 22:32 00:38 00:28 00:18 00:56 01:13 01:18 02:34 5/13/1975 Old Faithful 16:51:40 1:13:22 04:00 13:42 00:18 01:48 00:13 5/13/1975 Old Faithful 18:03:03 1:11:23 03:58 09:10 105' wind 01:59 01:41 00:31 00:26 00:08 00:52 01:03 01:09 02:09 5/13/1975 Old Faithful 19:14:48 1:11:45 03:58 10:13 140' 00:22 01:37 00:26 00:15 00:09 00:49 01:01 01:06 02:00 5/13/1975 Old Faithful 20:21:57 1:07:09 04:23 05:06 120'+ 04:36 04:14 00:23 00:16 01:24 02:17 5/13/1975 Old Faithful 21:35:45 1:13:48 03:11-03:33 07:45 06:39 02:03 00:01shot up 5/13/1975 Old Faithful 22:40:45 1:05:00 04:02 03:18 08:48 02:09 00:10 5/13/1975 Old Faithful 23:49:50 1:09:05 04:11 02:09 04:05 04:43 00:14 5/13/1975 Beehive 16:45:00 end 16:50:33 5/13/1975 Castle 17:01:00 5/13/1975 Depression 13:57:00 5/13/1975 Grand 16:27:00 ie toB1-16:37:10B2-16:38:55 5/13/1975 Grand 16:27:00 B3-16:39:40/16:40:05 5/13/1975 Riverside 15:58:00 ie end 5/14/1975 Old Faithful 5:32:53 02:18 05:43 00:06 5/14/1975 Old Faithful 6:27:37 0:54:44 04:35 06:34 130' 00:31 00:23 00:17 00:56 01:09 01:22 02:29 5/14/1975 Old Faithful 7:39:39 1:12:02 01:43+ 02:59 17:18 00:20 5/14/1975 Old Faithful 8:51:59 1:12:20 01:53 10:00 130' 00:19 16:59 00:25 00:24 00:16 00:56 01:09 01:33 01:45 5/14/1975 Old Faithful 9:42:09 0:50:10 04:37 08:05 130' 22:10 21:52 00:33 00:26 00:20 00:57 01:07 01:24 02:17 5/14/1975 Old Faithful 10:55:21 1:13:12 03:48 23:01 00:51 00:12 5/14/1975 Old Faithful 12:13:33 1:18:12 04:08 16:00 130' 05:01 18:01 00:34 00:24 00:10 00:56 01:04 01:16 01:38 5/14/1975 Old Faithful 13:30:16 1:16:43 01:40 12:11 145' 01:29 03:31 00:22 00:10 00:04 00:46 00:58 01:12 01:28 5/14/1975 Old Faithful 14:16:28 0:46:13 04:41 06:02 135' 30:30 29:01 00:27 00:15 00:10 00:52 01:00 01:17 02:32 5/14/1975 Old Faithful 15:37:34 1:21:06 01:55 11:48 130' 34:53 04:23 00:37 00:28 00:19 01:00 01:13 01:24 01:40 5/14/1975 Old Faithful 16:31:06 0:53:32 04:50 02:37? 27:34 07:19 00:37 00:10 5/14/1975 Old Faithful 17:40:53 1:09:47 01:57 none? 16:15 11:19 00:38 00:15 5/14/1975 Old Faithful 18:33:16 0:52:23 04:53 01:34 17:24 01:09 00:35 00:11 5/14/1975 Old Faithful 19:52:14 1:18:59 03:43 09:48 145' 26:36 09:12 00:22 00:11 00:54 01:03 01:25 02:16 5/14/1975 Old Faithful 20:55:13 1:02:59 04:40 115' 16:00 10:36 00:43 00:25 00:17 01:01 01:09 01:24 01:44 5/14/1975 Old Faithful 22:13:07 1:17:54 03:51 03:03 14:55 01:05 00:13 5/14/1975 Old Faithful 23:15:23 1:02:16 02:40-03:25 01:56 15:38 00:43 00:15 5/14/1975 Beehive 14:48:00 5/14/1975 Castle 14:48:00 ie 5/14/1975 Giantess 16:02:45 stm puff/doming 5/14/1975 Giantess 16:13:30 1stB 5/14/1975 Giantess 16:14:50 up again 5/14/1975 Giantess 16:25:34 5/14/1975 Giantess 16:34:00 burst 5/14/1975 Giantess 16:37:00 eruption 5/14/1975 Giantess 16:45:30 steamy burst 5/14/1975 Giantess 16:58:20 mostly steam 5/14/1975 Giantess 17:06:00 steady roar 5/14/1975 Giantess 17:07:00 steam phase 5/14/1975 Giantess 18:07:00 trace water 5/14/1975 Giantess 18:13:00 burst 5/14/1975 Giantess 18:18:40 water burst 5/14/1975 Giantess 18:47:00 weak water type bursts 5/14/1975 Giantess >18:48:00 better bursts 5/14/1975 Giantess 19:35:00 steam drifting 5/14/1975 Giantess 19:41:10 burst then rest 5/14/1975 Giantess 20:00:45 full eruption begins 5/14/1975 Giantess 20:03:00 1B above top of ridge 5/14/1975 Giantess 20:08:45 ended 5/14/1975 Giantess 21:04:00 bursts end 21:15 5/14/1975 Lion 11:00:00 ie 5/14/1975 Lion 15:32:00 ie 5/14/1975 Lion 17:40:00 ie 5/14/1975 Riverside 16:02:40 d=20:25 5/14/1975 Vault 16:17:00 full 5/14/1975 Vault 16:37:00 00:00 5/14/1975 Vault 16:41:00 "3"" down" 5/14/1975 Vault 17:14:00 "11"" down" 5/14/1975 Vault 17:28:00 "15"" down" 5/15/1975 Old Faithful ~5:40:12 long 5/15/1975 Old Faithful 6:59:06 1:18:54 01:58 04:18 125' 00:33 00:24 00:17 00:56 01:07 01:25 01:40 5/15/1975 Old Faithful 7:49:10 0:50:03 04:39 04:45 120' 28:51 00:32 00:22 00:11 00:56 01:16 01:24 02:18 5/15/1975 Old Faithful 9:06:38 1:17:29 01:57 06:47 120' 27:25 01:25 00:30 00:24 00:13 00:56 01:11 01:22 01:36 5/15/1975 Old Faithful 9:59:40 0:53:02 04:46 10:55 120' 24:27 02:58 00:43 00:26 00:19 01:03 01:10 01:29 02:29 5/15/1975 Old Faithful 11:17:27 1:17:47 01:47 07:35 24:45 00:18 00:09 00:50 01:00 01:19 01:31 5/15/1975 Old Faithful 12:02:57 0:45:29 04:36 5m-10m 120' 32:18 07:33 00:35 00:28 00:11 00:55 01:07 01:23 02:55 5/15/1975 Old Faithful 13:20:15 1:17:18 02:02 04:36 130' 31:49 00:29 00:22 00:09 00:04 00:48 00:56 01:13 01:32 5/15/1975 Old Faithful 14:20:24 1:00:09 04:51 15:03 130' wind 17:10 14:39 00:25 00:18 00:13 00:53 01:05 01:23 02:42 5/15/1975 Old Faithful 15:41:39 1:11:15 01:49 13:27 120' wind 21:07 03:57 00:30 00:16 00:12 00:45 01:03 01:21 01:30 5/15/1975 Old Faithful 16:27:01 0:45:22 04:35 01:21 110' wind 35:53 14:47 00:34 00:30 00:10 00:46 01:08 01:16 02:15 5/15/1975 Old Faithful 17:39:02 1:12:00 04:04 03:47 120' 26:38 09:15 00:29 00:21 00:08 00:51 01:06 01:17 01:50 5/15/1975 Old Faithful 18:48:57 1:09:55 04:05 06:06 120' 02:05 24:33 00:31 00:18 00:12 00:59 01:09 01:19 02:31 5/15/1975 Old Faithful 20:01:07 1:12:10 03:49 07:24 125' 02:15 00:10 00:26 00:17 00:09 00:46 00:58 01:16 01:36 5/15/1975 Old Faithful 21:04:17 1:03:10 04:19 00:19 115' 09:00 06:45 00:30 00:19 00:10 00:45 01:01 01:14 01:23 5/15/1975 Old Faithful 22:20:14 1:15:57 03:38 07:34 12:47 03:47 00:06 5/15/1975 Old Faithful 23:24:47 1:04:33 04:15 00:41 11:24 01:23 00:06 5/15/1975 Beehive 11:38:00 5/15/1975 Castle 9:00:00 VR 5/15/1975 Castle 9:45:00 ie steam phase 5/15/1975 Castle 18:15:00 ie water phase 5/15/1975 Dome active 5/15/1975 Giantess 6:45:00 ie steam hid bursts 5/15/1975 Giantess 7:31:00 good bursts 5/15/1975 Giantess 14:15:00 good eruption 5/15/1975 Giantess 15:10:00 eruption ended 15:15 5/15/1975 Grand 21:13:00 5/16/1975 Old Faithful 5:03:55 01:55 5/16/1975 Old Faithful 5:50:45 0:46:50 04:39 02:45 100' strng wind 00:33 00:15 00:58 01:10 01:22 01:39 5/16/1975 Old Faithful 7:02:08 1:11:23 03:44 none 125' 24:33 00:30 00:19 00:09 00:41 01:04 01:16 01:29 5/16/1975 Old Faithful 8:09:41 1:07:33 03:38 none 150'+ 03:51 20:42 00:24 00:23 00:16 5/16/1975 Old Faithful 9:20:06 1:10:25 03:53 03:33 120'+ 02:53 00:58 00:30 00:24 00:15 5/16/1975 Old Faithful 10:30:18 1:10:12 01:49 05:40 130' 00:13 02:40 00:23 00:12 00:06 00:47 01:01 01:08 01:30 5/16/1975 Old Faithful 11:16:48 0:46:30 04:52 03:14 110' 23:42 23:29 00:40 00:26 00:16 00:51 01:10 01:24 02:40 5/16/1975 Old Faithful 12:37:12 1:20:23 02:08 06:33 125' 33:53 10:11 00:34 00:24 00:16 01:00 01:12 01:26 01:35 5/16/1975 Old Faithful 13:46:44 1:09:32 04:45-0:4:53 23:41 140' wind 10:51 23:02 00:25 00:17 00:11 00:56 01:06 02:34 5/16/1975 Old Faithful 15:08:09 1:21:25 02:08 19:08 150' wind 11:53 01:02 00:40 00:24 00:17 00:58 01:10 01:25 01:45 5/16/1975 Old Faithful 15:54:24 0:46:15 04:53 06:14 130' wind 35:10 23:17 00:34 00:26 00:18 00:56 01:07 01:28 02:16 5/16/1975 Old Faithful 17:17:46 1:23:21 04:00 13:02 120' wind 37:06 01:56 00:40 00:27 00:19 00:58 01:09 01:23 02:31 5/16/1975 Old Faithful 18:21:32 1:03:46 02:04-02:14 none 19:35 17:31 5/16/1975 Old Faithful 19:19:53 0:58:21 04:40 13:17 145' 05:25 14:11 00:14 00:13 00:08 00:55 01:01 01:17 02:45 5/16/1975 Old Faithful 20:42:20 1:22:27 01:52 12:57 24:05 18:41 00:16 5/16/1975 Old Faithful 21:20:33 0:38:13 04:31 none? 44:14 20:09 5/16/1975 Old Faithful 22:45:17 1:24:43 02:01 11:50 46:30 02:16 00:14 5/16/1975 Beehive 18:50:21 5/16/1975 Beehive 6:32:00 5/16/1975 Beehive's Indicator 18:42:00 5/16/1975 Dome active 5/16/1975 Grand 6:32:00 5/16/1975 Grand 18:21:00 5/17/1975 Old Faithful 5:07:12 04:08-04:27 110' 00:36 00:31 00:18 01:04 01:08 5/17/1975 Old Faithful 6:16:57 1:09:45 03:42 none 110' 00:38 00:29 00:21 01:12 01:20 01:35 5/17/1975 Old Faithful 7:27:47 1:10:50 04:15 08:11 125' 01:06 00:28 00:16 00:09 5/17/1975 Old Faithful 8:42:07 1:14:20 02:09 07:38+ 130'+ 03:29 02:24 00:39 00:26 00:23 01:03 01:17 01:23 01:54 5/17/1975 Old Faithful 9:37:05 0:54:29 04:45 13:44 140' 19:21 15:52 00:30 00:14 00:07 00:47 01:01 01:20 02:38 5/17/1975 Old Faithful 10:51:36 1:14:30 03:46 00:59 115' 19:32 00:11 00:42 00:39 00:27 01:03 01:16 01:31 02:20 5/17/1975 Old Faithful 12:02:29 1:10:54 02:02 08:15 130' 03:37 15:55 00:42 00:30 00:28 01:04 01:20 01:26 01:44 5/17/1975 Old Faithful 12:48:58 0:46:29 04:44 04:01 120' 24:25 20:48 00:28 00:15 00:07 00:43 00:59 01:12 02:37 5/17/1975 Old Faithful 14:06:24 1:17:27 02:00 04:48 115' 30:58 06:33 00:30 00:20 00:09 00:55 01:04 01:17 01:30 5/17/1975 Old Faithful 14:51:21 0:44:56 04:34 none 110' 32:30 01:32 00:30 00:26 00:10 00:47 01:18 02:01 5/17/1975 Old Faithful 16:09:44 1:18:24 02:02 00:54 125' wind 33:28 00:57 00:16 00:14 00:08 00:39 00:55 01:10 01:33 5/17/1975 Old Faithful 17:06:26 0:56:41 04:33 12:37 130' 21:43 11:45 00:35 00:19 00:10 01:00 01:06 01:18 02:45 5/17/1975 Old Faithful 18:24:13 1:17:47 01:51 13:02 140' 21:06 00:36 00:34 00:21 00:13 00:58 01:05 01:21 01:36 5/17/1975 Old Faithful 19:14:26 0:50:13 04:56 ~08:46 150' 27:34 06:28 00:30 00:18 00:12 00:56 01:09 01:22 02:23 5/17/1975 Old Faithful 20:24:16 1:09:49 04:00 00:55 115' 19:36 07:58 00:49 00:44 00:28 00:56 01:16 01:23 01:40 5/17/1975 Old Faithful 21:33:32 1:09:16 04:31 04:40 00:33 19:03 00:26 5/17/1975 Old Faithful 22:49:54 1:16:22 04:04 01:40 07:06 06:33 00:26 5/17/1975 Beehive 19:31:36 d=4:26 5/17/1975 Beehive's Indicator 14:03:00 end15:03 no eruption 5/17/1975 Castle 9:23:00 5/17/1975 Castle 19:19:00 5/17/1975 Grand 9:31:00 5/17/1975 Grand 18:00:00 "d=12, 3B" 5/17/1975 Rift 10:14:00 5/17/1975 Riverside 10:09:00 5/17/1975 Riverside 16:22:00 VR 5/17/1975 Round 14:48:00 5/18/1975 Old Faithful 5:35:31 04:15 09:29 130'+ 00:22 00:12 5/18/1975 Old Faithful 6:49:39 1:14:07 02:44 03:02 120' 00:16 01:10 01:32 01:39 5/18/1975 Old Faithful 7:41:52 0:52:13 04:51-05:17 none 135'+ 21:54 00:18 00:11 5/18/1975 Old Faithful 8:59:27 0:17:35 03:38 none 120' 25:21 03:27 00:31 00:23 00:07 00:51 01:02 01:19 01:33 5/18/1975 Old Faithful ~10:00:36 ~1:01:09 assume 04:45 ~16:26 ~08:55 5/18/1975 Old Faithful 11:19:27 ~1:18:51 01:55 07:41 110' ~17:42 ~01:16 00:34 00:23 00:11 00:49 01:03 01:21 01:31 5/18/1975 Old Faithful 12:15:58 0:56:31 04:48 19:58 130' ~22:20 ~04:38 00:30 00:21 00:17 00:48 01:07 01:19 02:35 5/18/1975 Old Faithful 13:24:51 1:08:54 03:54 none 110' 12:23 ~09:57 00:34 00:28 00:09 00:50 01:03 01:14 01:36 5/18/1975 Old Faithful 14:36:22 1:11:30 01:47-01:50 05:09 120' wind 02:37 09:47 00:29 00:20 00:11 00:50 00:59 01:10 01:33 5/18/1975 Old Faithful 15:31:43 0:55:21 04:56 12:05 120' wind 16:09 13:32 00:34 00:26 00:19 00:48 01:05 01:18 02:26 5/18/1975 Old Faithful 16:43:51 1:12:08 04:15-04:17 03:37 105' wind 16:47 00:38 00:30 00:27 00:11 00:56 01:13 01:50 5/18/1975 Old Faithful 17:55:08 1:11:16 04:14 00:15 125' wind 00:52 15:55 00:27 00:17 00:06 00:53 01:06 01:23 02:17 5/18/1975 Old Faithful 19:08:51 1:13:43 04:11 12:49 140' wind 02:27 01:35 00:43 00:30 00:26 01:03 01:16 01:26 02:24 5/18/1975 Old Faithful 20:16:44 1:07:53 04:13 05:16 125' wind 05:50 03:23 00:40 00:27 00:16 01:00 01:12 01:25 02:07 5/18/1975 Old Faithful 21:24:08 1:07:23 04:18 00:07 100' wind 00:30 05:20 00:28 00:23 00:07 00:59 5/18/1975 Old Faithful 22:37:14 1:13:06 04:05 ear 04:59 05:43 05:13 00:28 5/18/1975 Old Faithful 23:42:45 1:05:32 04:25 01:46 07:34 01:51 00:13 5/18/1975 Beehive 10:47:30 5/18/1975 Castle 13:03:00 VR 5/18/1975 Castle 13:35:00 steam phase 5/18/1975 Grand 8:33:00 5/18/1975 Lion 13:55:00 5/18/1975 Riverside 10:47:00 5/18/1975 Round 9:38:00 5/19/1975 Old Faithful 5:46:32 04:34 09:57 130' wind 00:33 00:20 00:10 01:35 5/19/1975 Old Faithful 7:12:56 1:26:24 04:59 19:30 125' wind 00:24 00:23 00:16 00:57 01:06 01:25 02:17 5/19/1975 Old Faithful 8:22:49 1:09:53 04:25 none 130' wind 16:31 00:32 00:24 00:50 01:01 01:10 01:30 5/19/1975 Old Faithful 9:41:19 1:18:30 02:02 06:49 130' wind 08:37 07:54 00:43 00:33 00:21 01:03 01:16 01:34 01:45 5/19/1975 Old Faithful 10:31:36 0:50:17 04:46 09:41 28:13 19:36 00:23 00:20 00:07 00:35 01:01 01:13 02:15 5/19/1975 Old Faithful 11:46:59 1:15:22 01:59 02:45 120'+ snow 25:05 03:08 00:32 00:27 00:13 00:55 01:06 01:20 01:32 5/19/1975 Old Faithful 12:31:33 0:44:35 04:42 30:48 05:43 5/19/1975 Old Faithful 14:11:16 1:39:43 01:43 17:49 55:08 24:20 00:10 5/19/1975 Old Faithful 14:51:06 0:39:50 03:06-05:20 01:29 59:53 04:45 00:14 5/19/1975 Old Faithful 16:08:43 1:17:37 01:51 00:15 120-140' 37:47 22:06 00:26 00:16 00:07 00:49 00:58 01:18 01:32 5/19/1975 Old Faithful 17:01:21 0:52:38 03:59-04:51 16:32 24:59 12:48 00:15 00:07 00:56 5/19/1975 Old Faithful 18:10:57 1:09:36 04:00 00:10 115'+ 16:58 08:01 00:42 00:26 00:18 00:59 01:15 01:32 5/19/1975 Old Faithful 19:17:04 1:06:07 01:59 none 03:29 13:29 00:11 5/19/1975 Old Faithful 20:06:31 0:49:27 04:36 03:12 16:40 13:11 00:27 00:13 00:05 00:53 01:00 01:11 02:22 5/19/1975 Old Faithful 21:20:58 1:14:27 02:06 00:26 25:00 08:20 00:16 5/19/1975 Old Faithful 22:10:19 0:49:21 04:47 25:06 00:06 00:12 5/19/1975 Old Faithful 23:38:06 1:27:47 03:21 18:55 38:26 13:20 00:07 5/19/1975 Beehive 12:02:00 ie 5/19/1975 Castle 8:03:00 5/19/1975 Grand 9:14:00 5/19/1975 Riverside 10:19:00 5/19/1975 Round 13:13:00 5/20/1975 Old Faithful 5:11:38 04:50 none 00:15 5/20/1975 Old Faithful 6:26:54 1:15:17 03:29 01:59 130' 00:29 00:22 00:09 00:54 01:08 01:24 01:46 5/20/1975 Old Faithful 7:34:45 1:07:51 04:21 10:49 135' wind 07:26 00:26 00:22 00:17 01:00 01:05 01:20 02:26 5/20/1975 Old Faithful 8:50:28 1:15:43 03:55 09:33 115' wind 07:52 00:26 00:39 00:22 00:10 00:54 01:08 01:18 01:48 5/20/1975 Old Faithful 10:05:22 1:14:54 01:58 11:25 120' wind 00:49 07:03 00:37 00:18 00:16 00:59 01:06 01:22 01:40 5/20/1975 Old Faithful 10:58:05 0:52:43 04:28 long 22:11 21:22 5/20/1975 Old Faithful 12:10:30 1:12:25 03:50-03:53 11:30 19:42 02:29 5/20/1975 Old Faithful 13:30:34 1:22:04 02:22+ - 02:52 08:32 135'+ 07:39 12:03 00:28 00:16 00:09 00:56 01:05 01:13 5/20/1975 Old Faithful 14:22:38 0:52:04 04:27-04:49 03:43 30:00 22:21 00:11 5/20/1975 Old Faithful 15:42:53 1:20:15 01:44-01:45 20:32 ~110' 28:11 01:49 00:25 00:14 00:06 00:59 01:06 01:21 5/20/1975 Old Faithful 16:25:42 0:42:49 04:53 00:16 37:26 09:15 00:33 00:16 00:43 00:56 01:20 5/20/1975 Old Faithful 17:42:29 1:16:46 01:53 00:22 33:58 03:27 5/20/1975 Old Faithful 18:32:27 0:49:57 03:31-04:02 01:35 26:50 07:08 00:22 00:16 5/20/1975 Old Faithful 19:50:32 1:18:05 03:55 07:38 150' 28:08 01:17 00:29 00:16 00:09 00:59 01:12 5/20/1975 Old Faithful 20:59:45 1:09:13 02:13 07:33 08:51 19:16 5/20/1975 Old Faithful 21:46:27 0:46:42 04:24+ ?none 22:31 13:40 00:29 5/20/1975 Old Faithful 23:04:36 0:18:09 01:58 01:11 31:27 08:56 00:16 5/20/1975 Castle 11:31:00 5/20/1975 Grand 9:46:00 5/20/1975 Riverside 9:58:00 5/20/1975 Riverside 15:54:00 5/20/1975 Round 11:16:00 5/21/1975 Old Faithful 5:43:37 04:05 01:54 125' 00:34 00:17 00:08 00:51 01:05 01:20 01:26 5/21/1975 Old Faithful 6:53:32 1:07:55 04:24 00:33 110' 00:55 00:47 00:31 01:15 01:48 01:26 5/21/1975 Old Faithful 7:56:29 1:02:57 04:24 02:02 04:58 00:23 01:16 01:26 01:40 5/21/1975 Old Faithful 9:14:42 1:18:13 04:08-04:10 10:39 15:16 10:18 00:16 00:08 5/21/1975 Old Faithful 10:20:19 1:05:37 04:04 03:49 12:36 02:40 00:13 5/21/1975 Old Faithful 11:34:44 1:14:25 02:11-02:33 03:50 08:48 03:48 00:20 5/21/1975 Old Faithful ~12:24:00 ~0:49:16 long short ~25:09 ~16:21 5/21/1975 Old Faithful 13:45:27 ~1:21:27 02:02 14:08 ~32:11 ~07:02 00:37 00:29 01:11 01:22 01:38 01:47 5/21/1975 Old Faithful ~14:29:00 ~0:43:33 assume 4:43 ~37:54 ~05:43 5/21/1975 Old Faithful 15:43:40 ~1:14:40 02:27 ~31:07 ~06:47 00:11 5/21/1975 Old Faithful 16:46:27 1:12:47 04:24 08:52 135' ~11:53 ~19:14 00:32 00:18 00:11 00:51 01:04 01:28 02:33 5/21/1975 Old Faithful 17:56:55 1:10:28 04:27 01:09 110' 07:41 ~04:12 00:37 00:14 00:46 01:05 01:21 01:34 5/21/1975 Old Faithful 19:10:05 1:13:10 04:01 04:20 125' 02:42 04:59 00:31 00:24 00:11 00:53 01:09 01:16 01:37 5/21/1975 Old Faithful 20:23:15 1:13:10 02:10 09:24 140'+ 00:00 02:42 00:36 00:22 00:15 5/21/1975 Old Faithful 21:19:03 0:55:48 04:42 12:41 130'+ 17:22 17:22 00:36 00:24 00:15 5/21/1975 Old Faithful 22:31:13 1:12:10 01:59 02:51 16:22 01:00 00:16 5/21/1975 Old Faithful 23:27:18 0:56:05 04:52 15:00 16:05 00:17 00:17 5/21/1975 Beehive 14:18:00 end 14:22:35 5/21/1975 Castle 11:00:00 5/21/1975 Grand 13:15:00 ie 5/21/1975 Lion 11:55:00 5/21/1975 Lion 13:10:00 5/21/1975 Lion 19:23:00 ie 5/21/1975 Riverside 16:17:23 VR 5/21/1975 Riverside ~10:05:00 5/21/1975 Round 10:59:00 5/22/1975 Old Faithful 5:26:16 04:15 00:17 5/22/1975 Old Faithful 6:33:22 1:07:06 03:56 00:20 120'+ 00:47 00:31 00:24 01:03 01:16 01:27 01:40 5/22/1975 Old Faithful 7:49:02 1:15:40 04:24 10:10 08:34 00:29 00:14 5/22/1975 Old Faithful 8:59:01 1:09:59 02:03+ 01:16 115'+ 05:41 02:53 00:31 00:21 00:12 01:00 01:10 01:25 5/22/1975 Old Faithful 9:56:36 0:57:35 04:33 10:56 135' 12:24 08:33 00:26 00:17 00:09 00:50 01:01 01:18 5/22/1975 Old Faithful 11:13:16 1:16:40 03:57 12:29 120' 19:05 06:41 00:31 00:22 00:17 00:58 01:08 01:28 5/22/1975 Old Faithful 12:28:59 1:15:43 04:20 13:36 155' 00:57 18:08 00:40 00:23 00:18 02:24 5/22/1975 Old Faithful 13:31:36 1:02:33 04:32 none 105' 13:10 12:13 00:35 00:29 00:17 00:39 01:04 01:14 01:38 5/22/1975 Old Faithful 14:42:37 1:11:05 04:01 none 120' 08:32 04:38 00:52 00:42 00:23 01:09 01:17 01:28 02:20 5/22/1975 Old Faithful 15:58:19 1:15:42 04:21 13:16 135' 04:37 03:55 00:38 00:19 00:13 00:56 01:05 01:22 02:22 5/22/1975 Old Faithful 17:14:46 1:16:27 01:59 10:00 140' 00:45 03:52 00:38 00:23 00:17 01:01 01:12 01:24 01:47 5/22/1975 Old Faithful 17:57:57 0:43:11 04:35 00:16 115'+ 33:16 32:31 00:22 00:15 00:07 00:45 00:57 01:07 02:18 5/22/1975 Old Faithful 19:19:32 1:21:35 01:51 14:26 120' 38:24 05:08 00:32 00:18 00:08 00:52 01:03 01:20 01:35 5/22/1975 Old Faithful 20:00:25 0:40:53 04:37 04:29 40:42 02:18 00:07 5/22/1975 Old Faithful 21:22:46 1:22:21 01:46 07:20 130'+ 41:28 00:46 00:19 00:17 00:08 00:52 01:00 01:08 5/22/1975 Old Faithful 22:07:12 0:44:26 04:53 00:20 2' 37:55 03:33 00:05 00:36 5/22/1975 Old Faithful 23:26:48 1:19:35 02:04 07:20 5 35:09 02:45 00:58 00:01 00:10 00:07 01:11 5/22/1975 Beehive 9:49:10 d~5:20 5/22/1975 Beehive 19:59:07 d=5:09 5/22/1975 Great Fountain 14:14:00 5/22/1975 Riverside 15:50:00 VR 5/22/1975 Round 14:44:00 ie 5/23/1975 Old Faithful 6:03:58 01:52 15:47 00:19 00:08 5/23/1975 Old Faithful 6:51:29 0:47:29 04:40 05:24 120'+ 00:35 00:29 00:17 01:02 01:09 01:21 02:04 5/23/1975 Old Faithful 8:14:20 1:22:53 02:01 14:18 130' 35:24 00:31 00:22 00:13 00:58 01:08 01:25 02:01 5/23/1975 Old Faithful 8:58:04 0:43:44 04:36 01:37 140' 39:09 03:45 00:26 00:25 00:16 00:55 01:10 01:25 02:32 5/23/1975 Beehive 6:55:00 5/23/1975 Beehive 17:29:52 d=5:10 5/23/1975 Beehive's Indicator 17:09:00 ie 5/23/1975 Grand 14:32:00 ie 5/23/1975 Great Fountain 14:40:00 VR 5/23/1975 Riverside 15:45:00 VR 5/23/1975 Round 9:26:00 5/23/1975 White Dome 12:15:00 5/24/1975 Beehive ~15:57:45 d~5:15 5/24/1975 Beehive's Indicator 15:13:00 ie 5/24/1975 Great Fountain 11:04:00 VR 5/24/1975 Riverside 15:30:00 VR 5/24/1975 Round 8:49:00 5/24/1975 Round 18:47:00 5/25/1975 Beehive 14:43:00 5/25/1975 Beehive's Indicator 14:13:00 5/25/1975 Castle 14:35:00 ie 5/25/1975 Grand 9:55:00 5/25/1975 Grand 16:45:00 ie 5/25/1975 Great Fountain 16:20:00 ieVR 5/25/1975 Riverside 10:05:00 ie 5/25/1975 Riverside 16:04:00 5/25/1975 Round 11:00:00 5/26/1975 Beehive 13:48:31 d=5:13 5/26/1975 Beehive's Indicator 13:35:00 "shootup 21'/HP55max2'5""" 5/26/1975 Castle 10:10:00 5/26/1975 Castle 20:13:00 5/26/1975 Grand 7:40:00 5/26/1975 Grand 15:45:00 ie 5/26/1975 Lion 6:15:00 ie 5/26/1975 Lion 7:25:00 ie 5/26/1975 Lion 10:06:00 5/26/1975 Lion 10:51:00 ie 5/26/1975 Riverside 9:36:00 5/26/1975 Riverside 15:26:00 5/27/1975 Beehive 12:46:25 d=4:40 5/27/1975 Beehive's Indicator 12:25:00 5/27/1975 Castle 16:30:00 ieVR 5/27/1975 Castle 16:55:00 5/27/1975 Grand 13:09:00 5/27/1975 Grand 21:11:00 5/27/1975 Lion 7:07:00 ie 5/27/1975 Lion 10:54:00 major 5/27/1975 Lion 12:34:00 5/27/1975 Lion 14:23:00 5/27/1975 Lion 20:12:00 5/27/1975 Oblong 7:36:00 5/27/1975 Riverside 9:50:00 90m after overflow 5/28/1975 Beehive 11:04:00 11:06:49 end 5/28/1975 Beehive's Indicator 10:54:00 ie 5/28/1975 Castle 7:00:00 steam 5/28/1975 Grand 12:16:00 3B 5/28/1975 Grand 19:54:00 ie 5/28/1975 Riverside 10:12:00 5/28/1975 Riverside 16:22:00 5/28/1975 Riverside 22:26:00 VR 5/28/1975 Round 7:49:00 5/28/1975 Spa 20:06:00 12' 5/28/1975 Spa 20:10:00 3' 5/28/1975 Spa 20:13:00 6' 5/29/1975 Beehive 8:41:42 d=5:06 5/29/1975 Beehive's Indicator 8:05:00 intermittent at 1st 5/29/1975 Beehive's Indicator 18:25:00 dry 19:00:36 5/29/1975 Bulger 7:30:00 ie 5/29/1975 Bulger 9:37:00 ie 5/29/1975 Castle 7:15:00 ie steam 5/29/1975 Castle 14:55:00 ie steam 5/29/1975 Castle 21:52:00 5/29/1975 Grand 11:01:00 ie 5/29/1975 Grand 18:27:00 5/29/1975 Great Fountain 16:20:00 VR 5/29/1975 Oblong 9:27:00 ie 5/29/1975 Riverside 10:45:00 VR 5/29/1975 Riverside 16:53:00 5/29/1975 Rocket 10:50:00 VR 5/29/1975 Round 16:06:00 5/30/1975 Beehive 9:54:50 d=5:12 5/30/1975 Beehive's Indicator 18:10:00 ie 5/30/1975 Castle 7:36:00 5/30/1975 Castle 17:23:00 5/30/1975 Grand 8:22:00 2B 5/30/1975 Grand 15:57:00 3B 5/30/1975 Great Fountain 17:49:00 VR 5/30/1975 Great Fountain 17:49:00 5/30/1975 North Goggles 11:49:00 ie 5/30/1975 Riverside 11:47:00 VR end 12:02 5/30/1975 Riverside 17:29:00 5/30/1975 Round 11:15:00 ie 5/30/1975 Silex Spring 8:20:00 ie 3 1/2' drop/10m 5/30/1975 Silex Spring 10:30:00 ie 3' drop by11:15 5/30/1975 Till 8:42:00 5/31/1975 Beehive 0:27:00 5/31/1975 Beehive 14:03:00 5/31/1975 Beehive's Indicator 8:05:00 5/31/1975 Castle 12:55:00 ie 5/31/1975 Depression 8:33:00 5/31/1975 Grand 7:08:00 ie 5/31/1975 Grand 15:06:00 5/31/1975 Great Fountain 12:25:00 5/31/1975 Great Fountain 21:02:00 5/31/1975 Lion 8:04:00 5/31/1975 Lion 10:15:00 VR 5/31/1975 Lion 13:17:00 ie 5/31/1975 Lion 15:04:00 12' for 30s 5/31/1975 Lion 16:09:00 5/31/1975 Lion 17:27:00 ie 5/31/1975 Riverside 11:59:00 5/31/1975 Riverside 18:00:00 5/31/1975 Round 8:11:00? 5/31/1975 Round 18:47:00 5/31/1975 Spectacle 17:29:00 5/31/1975 Till 9:50:00 5/31/1975 West Flood 10:17:00 6/1/1975 Old Faithful 11:08:00 03:50 11:07 6/1/1975 Beehive 15:15:00 VR 6/1/1975 Beehive's Indicator 9:49:00 ie 6/1/1975 Beehive's Indicator 14:40:00 ie 6/1/1975 Castle 8:02:00 minor 6/1/1975 Castle 10:35:00 6/1/1975 Castle 21:32:00 6/1/1975 Crystal Spring 19:42:00 8-15' 6/1/1975 Crystal Spring 21:42:00 6/1/1975 Crystal Spring 23:13:00 6/1/1975 Depression 15:10:00 6/1/1975 Grand 13:45:00 VR "1B d13m,2B d21s" 6/1/1975 Grand 3B d21s 6/1/1975 Grand 20:39:00 6/1/1975 Great Fountain 12:51:00 6/1/1975 Great Fountain 19:40:00 6/1/1975 Green Spring 17:26:00? 6/1/1975 Oblong 12:12:00 6/1/1975 Oblong 20:50:00 6/1/1975 Riverside 6:13:00 ie 6/1/1975 Riverside 11:40:00 6/1/1975 Rocket 19:12:00 6/1/1975 Round 10:14:00 6/1/1975 Round 15:45:00 6/1/1975 Uncertain 21:07:00 6/2/1975 Beehive 12:32:00 6/2/1975 Beehive's Indicator 8:15:00 ie 6/2/1975 Beehive's Indicator 12:15:00 ie 6/2/1975 Beehive's Indicator 17:06:00 ie 6/2/1975 Castle ~7:00:00 6/2/1975 Castle 19:44:00 6/2/1975 Dome 18:02:00 init.eruption 8-10' 6/2/1975 Grand 12:46:00 6/2/1975 Grand 19:36:00 6/2/1975 Great Fountain 12:45:00 VR 6/2/1975 Great Fountain 20:55:00 6/2/1975 Oblong 12:20:00 6/2/1975 Oblong 19:12:00 ie 6/2/1975 Riverside 11:27:00 6/2/1975 Riverside 19:14:00 6/2/1975 Rocket 10:05:00 6/3/1975 Beehive 18:00:00 6/3/1975 Beehive's Indicator 7:56:00 ie d>56m 6/3/1975 Bonita 17:18:00 drained 6/3/1975 Castle 7:10:00 ie steam phase 6/3/1975 Castle 16:24:00 ie 6/3/1975 Daisy 17:18:00 overflowing 6/3/1975 Fountain 16:49:00 6/3/1975 Grand 11:56:00 start 6/3/1975 Grand 12:00:00 ie 6/3/1975 Grand 19:05:00 ie 6/3/1975 Great Fountain 17:16:00 6/3/1975 Oblong 17:03:00 ie 6/3/1975 Pink Cone 14:55:00 6/3/1975 Riverside 11:30:00 VR d=23m 6/3/1975 Riverside 17:19:00 6/3/1975 Round 11:53:00 6/3/1975 Round 17:07:00 6/4/1975 Artemisia 14:02:00 6/4/1975 Atomizer 17:56:00 6/4/1975 Beehive 10:19:00 6/4/1975 Beehive's Indicator 9:59:00 ie 6/4/1975 Beehive's Indicator 20:40:00 ie 6/4/1975 Castle 11:50:00 ie 6/4/1975 Castle 21:14:00 6/4/1975 Cauliflower 14:50:00 6/4/1975 Grand 13:16:00 ie 6/4/1975 Grand 20:58:00 6/4/1975 Great Fountain 13:18:00 6/4/1975 Great Fountain >24:00:00 6/4/1975 Lion 18:13:00 6/4/1975 Riverside 16:46:00 6/4/1975 Riverside 22:10:00 VR 6/4/1975 Spectacle 21:49:00 6/4/1975 White Dome 12:46:00 6/5/1975 Beehive's Indicator 8:30:00 ie 6/5/1975 Beehive's Indicator 12:00:00 ie 6/5/1975 Castle 17:57:00 ie 6/5/1975 Cliff 8:37:00 "d=17m,start fm empty" 6/5/1975 Grand 11:27:00 6/5/1975 Grand 11:30:00 VR 6/5/1975 Great Fountain 18:12:00 6/5/1975 Lion 8:25:00 ie 6/5/1975 Riverside ~10:00:00 VR 6/5/1975 Riverside 15:15:00 VR 6/5/1975 Riverside 15:31:00 6/5/1975 Round 0:53:00 6/6/1975 Beehive's Indicator 10:40:00 ie 6/6/1975 Beehive's Indicator 15:09:00 ie 6/6/1975 Beehive's Indicator 18:07:00 end 19:10 6/6/1975 Castle 13:30:00 6/6/1975 Castle 23:04:00 6/6/1975 Depression 10:22:00 6/6/1975 Grand 10:30:00 6/6/1975 Grand <18:20:00 6/6/1975 Great Fountain 13:00:00 ieVR 6/6/1975 Great Fountain 13:20:00 VR 6/6/1975 Green Spring 10:10:00 6/6/1975 Green Spring 10:56:00 ie 6/6/1975 Green Spring 19:32:00 d=8:42 6/6/1975 Green Spring 21:04:00 d=9:34 6/6/1975 Green Spring 21:52:00 d=9:22 6/6/1975 Riverside 9:29:00 6/6/1975 Riverside 15:10:00 VR 6/6/1975 Riverside 21:18:00 6/6/1975 Round 8:42:00 6/6/1975 Round 19:13:00 6/6/1975 Sawmill 10:26:00 6/6/1975 Spectacle 12:47:00 6/7/1975 Old Faithful 4:42:51 04:46 6/7/1975 Old Faithful 6:00:55 1:18:04 03:51 6/7/1975 Old Faithful 7:24:03 1:23:08 04:04 6/7/1975 Old Faithful 8:28:31 1:04:27 04:11 6/7/1975 Old Faithful 9:41:00 1:12:30 02:01 6/7/1975 Old Faithful 10:33:35 0:52:34 04:58 6/7/1975 Old Faithful 11:54:51 1:21:16 02:04 6/7/1975 Old Faithful 12:50:46 0:55:55 04:55 6/7/1975 Old Faithful 14:12:00 1:22:00 04:00 6/7/1975 Old Faithful 15:29:00 1:17:00 04:42 6/7/1975 Old Faithful 16:49:00 1:20:00 02:06 6/7/1975 Old Faithful 19:01:00 0:50:00 02:03 6/7/1975 Old Faithful 19:51:00 04:47 6/7/1975 Beehive's Indicator 7:56:00 end <9:00 6/7/1975 Beehive's Indicator 15:15:00 ie 6/7/1975 Beehive's Indicator 18:20:00 6/7/1975 Castle 8:53:00 6/7/1975 Castle 18:15:00 minor 6/7/1975 Castle 20:27:00 major 6/7/1975 Depression 18:34:00 6/7/1975 Grand 9:50:00 3B 6/7/1975 Grand 17:53:00 1B 6/7/1975 Great Fountain 8:45:00 ie 6/7/1975 Green Spring 10:24:00 4' 6/7/1975 Grotto Fountain 10:00:00 ie 6/7/1975 Lion 15:16:00 6/7/1975 Lion 18:11:00 nervous spells 6/7/1975 Lion 18:45:00 6/7/1975 Lion 20:22:00 ie 6/7/1975 North Goggles 18:12:00 6/7/1975 Riverside 9:25:00 6/7/1975 Riverside ~15:25:00 6/7/1975 Round 17:08:00 6/7/1975 Spectacle 15:30:00 6/7/1975 Spectacle 17:07:00 6/7/1975 Spectacle 19:14:00 6/8/1975 Old Faithful 8:06:00 04:04 6/8/1975 Old Faithful 9:19:00 1:13:00 04:10 6/8/1975 Old Faithful 10:38:00 1:19:00 04:23 6/8/1975 Old Faithful 11:45:00 1:07:00 03:27 6/8/1975 Old Faithful 18:14:00 03:40 6/8/1975 Artemisia 15:52:00 6/8/1975 Atomizer 16:16:00 minor 6/8/1975 Atomizer 16:20:00 "major d=12m,stm12m" 6/8/1975 Beehive's Indicator 7:32:00 ie d>54m 6/8/1975 Beehive's Indicator 11:33:00 ie 6/8/1975 Beehive's Indicator 16:15:00 6/8/1975 Beehive's Indicator 16:42:00 6/8/1975 Beehive's Indicator 19:40:00 6/8/1975 Castle 6:40:52 d=17 1/2m water 29s P 6/8/1975 Castle 16:38:28 6/8/1975 Depression 19:44:00 6/8/1975 Grand 11:04:00 4B 6/8/1975 Grand 18:49:00 6/8/1975 Great Fountain 11:45:00 VR 6/8/1975 Great Fountain 20:18:00 6 1/2m main 9m maxB 6/8/1975 Lion 16:32:00 6/8/1975 Lion 19:12:00 d=3m03 6/8/1975 Lion 21:04:00 6/8/1975 Oblong 16:32:00 6/8/1975 Riverside 14:36:00 back ind. 3m 6/8/1975 Riverside 20:30:00 back ind. 1m bef. 6/8/1975 Round 10:38:00 6/8/1975 Round 22:10:00 6/8/1975 Spectacle 7:16:00 6/8/1975 Spectacle 8:38:00 d~40s 6/8/1975 Spectacle 19:07:00 6/8/1975 Spectacle 20:49:00 6/9/1975 Old Faithful 4:01:33 long 6/9/1975 Old Faithful 5:08:44 1:07:11 03:53 01:18 ~125' 00:07 6/9/1975 Old Faithful 6:23:09 1:14:25 04:14 08:16 07:14 00:26 00:18 6/9/1975 Old Faithful 7:27:40 1:04:31 04:12 00:37 09:54 02:40 00:25 00:14 6/9/1975 Old Faithful 8:38:03 1:10:23 04:12 05:32 130' 05:52 04:02 00:20 00:11 6/9/1975 Old Faithful 10:00:00 02:07 6/9/1975 Old Faithful 10:44:00 04:33 6/9/1975 Old Faithful 12:03:00 01:57 6/9/1975 Old Faithful 12:52:00 04:42 6/9/1975 Old Faithful 14:10:00 03:52 6/9/1975 Old Faithful 15:23:00 04:27 6/9/1975 Old Faithful 16:34:00 02:44 6/9/1975 Old Faithful 17:25:00 04:48 6/9/1975 Old Faithful 18:47:00 01:50 6/9/1975 Beehive 6:52:00 VR 6/9/1975 Beehive 13:27:00 6/9/1975 Castle 11:30:00 ie 6/9/1975 Depression 9:40:00 6/9/1975 Depression 16:47:00 6/9/1975 Grand 10:19:00 6/9/1975 Grand 10:25:00 ie 6/9/1975 Grand 16:35:00 6/9/1975 Great Fountain 16:23:00 6/9/1975 Green Spring 9:53:00 6/9/1975 Green Spring 10:50:00 ie 8' 6/9/1975 Oblong 8:20:00 6/9/1975 River Growler 7:45:00 S.M.-d>3mstm>2h(2xnor 6/9/1975 River Growler frm)Ufiss.Lfissbreaby river 6/9/1975 Riverside 8:39:00 6/9/1975 Round 9:57:08 6/10/1975 Old Faithful 7:56:13 ~04:21 6/10/1975 Old Faithful 9:07:00 1:11:00 02:25 6/10/1975 Old Faithful 9:58:00 0:51:00 04:00 6/10/1975 Old Faithful 11:19:00 1:21:00 04:02 11:10 6/10/1975 Old Faithful 12:32:00 1:13:00 04:02 12:30 6/10/1975 Old Faithful 1:48:00 1:16:00 ~02:00 1:44 6/10/1975 Old Faithful 2:35:00 0:47:00 04:51 2:38 6/10/1975 Old Faithful 3:49:00 1:14:00 02:00 3:50 6/10/1975 Old Faithful 4:31:00 0:42:00 04:54 4:40 6/10/1975 Old Faithful 5:50:00 1:19:00 01:43 5:46 6/10/1975 Old Faithful 6:36:00 0:46:00 04:43 6:35 6/10/1975 Beehive 21:02:00 6/10/1975 Grand 16:00:00 6/10/1975 Grand 23:26:00 6/10/1975 Great Fountain 16:14:00 6/10/1975 Riverside 9:20:00 6/10/1975 Riverside 21:48:00 6/10/1975 Round 13:03:00 6/11/1975 Old Faithful 8:38:00 04:08 6/11/1975 Old Faithful 9:52:00 1:14:00 03:54 6/11/1975 Old Faithful 11:20:00 1:28:00 6/11/1975 Old Faithful 13:20:00 04:40 13:18 6/11/1975 Old Faithful 14:38:00 1:18:00 01:49 14:36 6/11/1975 Old Faithful 15:23:00 0:45:00 04:52 15:22 6/11/1975 Old Faithful 16:48:00 1:25:00 02:10 16:40 6/11/1975 Old Faithful 17:48:00 1:00:00 04:49 17:40 6/11/1975 Beehive 12:05:00 6/11/1975 Beehive 18:07:53 d=5:12 6/11/1975 Beehive's Indicator 7:57:00 ie 6/11/1975 Beehive's Indicator 14:51:00 ie 6/11/1975 Castle 4:40:00 6/11/1975 Castle 14:43:00 6/11/1975 Cliff 8:33:00 ie end 9:50 6/11/1975 Daisy 12:04:00 6/11/1975 Daisy 14:02:00 6/11/1975 Depression 19:14:00 ie 6/11/1975 Grand 14:34:00 ie 6/11/1975 Grand 21:41:00 6/11/1975 Great Fountain 9:10:00 6/11/1975 Great Fountain 20:02:00 6/11/1975 Grotto 22:29:00 6/11/1975 Grotto Fountain 22:26:00 6/11/1975 Oblong 16:19:00 6/11/1975 Oblong 22:31:00 6/11/1975 Riverside 10:28:00 6/11/1975 Riverside 16:21:00 6/11/1975 Riverside 22:13:00 6/11/1975 Round 8:26:00 6/11/1975 Round 20:28:00 6/11/1975 Splendid 11:09:00 6/11/1975 Vault 4:15:00 6/11/1975 Vault 9:13:00 6/11/1975 Vault 13:52:00 6/11/1975 Vault 14:55:00 6/12/1975 Old Faithful 8:10:00 02:59 6/12/1975 Old Faithful 9:23:00 1:13:00 02:09 6/12/1975 Old Faithful 10:07:00 0:44:00 04:20 6/12/1975 Old Faithful 11:26:00 1:19:00 01:48 6/12/1975 Old Faithful 12:17:00 0:52:00 03:30 6/12/1975 Old Faithful 13:33:00 1:16:00 01:51 13:26 6/12/1975 Old Faithful 14:20:00 0:47:00 04:35 14:20 6/12/1975 Old Faithful 15:36:00 1:16:00 02:06 15:35 6/12/1975 Old Faithful 16:26:00 0:50:00 04:05 16:26 6/12/1975 Old Faithful 17:40:00 1:14:00 03:50 17:38 6/12/1975 Old Faithful 18:54:00 1:14:00 01:58 18:50 6/12/1975 Beehive ~12:20:00 6/12/1975 Beehive's Indicator 8:16:00 6/12/1975 Beehive's Indicator 12:18:00 6/12/1975 Castle 1:03:00 6/12/1975 Castle 10:41:00 6/12/1975 Castle 20:08:00 minor 3m12 6/12/1975 Castle 23:20:00 ie 6/12/1975 Daisy 10:50:00 6/12/1975 Daisy 14:01:00 6/12/1975 Daisy 16:03:00 6/12/1975 Depression 20:12:00 6/12/1975 Grand 13:50:00 "ws56s,B1=10m9,P1=77" 6/12/1975 Grand "B2-25,P2=62,B3=34" 6/12/1975 Grand 21:20:00 2B 6/12/1975 Great Fountain 11:13:00 6/12/1975 Great Fountain 12:05:00 6/12/1975 Great Fountain 22:03:00 6/12/1975 Green Spring 9:50:00 ie 6/12/1975 Green Spring 10:50:00 ie then drained 6/12/1975 Lion? 19:55:00 6/12/1975 Oblong 14:08:00 6/12/1975 Oblong 20:43:00 6/12/1975 Riverside 10:19:00 6/12/1975 Riverside 16:08:00 6/12/1975 Riverside 21:57:00 6/12/1975 Round 8:05:00 6/12/1975 Round 19:52:00 6/12/1975 South Grotto Fountain 10:26:00 6/12/1975 Splendid 10:49:00 6/12/1975 Vent ~13:52:00 6/13/1975 Old Faithful 8:31:00 04:00 6/13/1975 Old Faithful 9:41:00 9:44 6/13/1975 Old Faithful 10:53:00 3 3/4 6/13/1975 Old Faithful 11:58:00 0:55:00 3 3/4 12:02 6/13/1975 Old Faithful 13:08:00 1:10:00 04:00 13:08 6/13/1975 Old Faithful 14:23:00 1:10:00 03:32 14:20 6/13/1975 Old Faithful 15:32:00 0:59:00 6/13/1975 Old Faithful 17:50:00 4 1/4 17:20 6/13/1975 Abuse erupted overnite 6/13/1975 Beehive's Indicator 8:12:00 ie 6/13/1975 Beehive's Indicator 19:20:00 ie 6/13/1975 Castle 11:30:00 ie 6/13/1975 Grand 13:07:00 2B 6/13/1975 Grand 21:07:00 2B 6/13/1975 Great Fountain 6:35:00 6/13/1975 Great Fountain 16:23:00 VR 6/13/1975 Riverside 10:25:00 6/13/1975 Riverside 16:20:00 ie 6/13/1975 Round 8:07:00 6/13/1975 Round 13:36:00 6/13/1975 Spectacle 8:02:00 6/13/1975 White Dome 6:35:00 6/14/1975 Old Faithful 2:51:00 long 6/14/1975 Old Faithful 4:15:23 1:24:00 01:47 6/14/1975 Old Faithful 5:03:50 0:48:00 04:51 6/14/1975 Old Faithful 6:22:52 1:19:00 01:50 6/14/1975 Old Faithful 7:14:28 0:52:00 long 6/14/1975 Old Faithful 8:28:00 1:14:00 04:22 6/14/1975 Old Faithful 9:51:00 1:23:00 3 3/4 6/14/1975 Old Faithful 11:01:00 1:10:00 4 1/2 6/14/1975 Old Faithful 12:10:00 1:09:00 1 3/4 6/14/1975 Old Faithful 12:55:00 0:45:00 4 1/4 6/14/1975 Old Faithful 14:10:00 1:15:00 02:06 14:08 6/14/1975 Old Faithful 15:05:00 0:55:00 04:48 15:00 6/14/1975 Old Faithful 16:21:00 1:16:00 04:10 6/14/1975 Old Faithful 17:33:00 04:32 6/14/1975 Old Faithful 18:45:00 6/14/1975 Beehive 18:48:00 6/14/1975 Beehive's Indicator 7:40:00 ie 6/14/1975 Castle 7:55:00 6/14/1975 Castle 18:20:00 ie 6/14/1975 Grand 12:47:00 3B 6/14/1975 Grand 20:32:00 2B 6/14/1975 Great Fountain 20:29:00 6/14/1975 Lion 21:04:00 6/14/1975 Oblong 12:47:00 6/14/1975 Oblong 20:11:00 6/14/1975 Riverside 10:16:00 6/14/1975 Riverside 16:33:00 6/14/1975 Riverside 22:07:00 6/14/1975 Round 8:12:00 6/14/1975 Round 12:34:00 6/14/1975 Spectacle 7:58:00 6/14/1975 Spectacle 8:54:00 6/15/1975 Old Faithful 3:28:00 6/15/1975 Old Faithful 4:47:21 1:19:00 04.02-04.55 6/15/1975 Old Faithful 6:07:54 1:21:00 04:42 6/15/1975 Old Faithful 7:21:29 1:14:00 04:05 6/15/1975 Old Faithful 8:32:00 1:11:00 03:46 8:34 6/15/1975 Old Faithful 9:45:00 1:13:00 01:45 9:42 6/15/1975 Old Faithful 10:32:00 0:47:00 4 1/2 10:36 6/15/1975 Old Faithful 11:59:00 1:18:00 02:00 11:46 6/15/1975 Old Faithful 12:48:00 0:49:00 6/15/1975 Old Faithful 15:18:00 6/15/1975 Old Faithful 16:03:00 6/15/1975 Old Faithful 17:26:00 03:30 6/15/1975 Old Faithful 18:45:00 03:00 18:36 6/15/1975 Old Faithful 19:56:00 18:50 6/15/1975 Old Faithful 20:44:00 04:48 20:48 6/15/1975 Beehive 15:44:00 6/15/1975 Beehive's Indicator 6:02:00 ie 6/15/1975 Beehive's Indicator 15:30:00 6/15/1975 Castle 13:16:00 6/15/1975 Cliff 13:17:00 d=19m 6/15/1975 Cliff 19:36:00 d=23m 6/15/1975 Cliff 21:10:00 d=9m 6/15/1975 Dome active 6/15/1975 Grand 11:29:00 VR 6/15/1975 Grand 18:30:00 6/15/1975 Great Fountain 13:17:00 6/15/1975 Green Spring 11:20:00 6/15/1975 Green Spring 13:16:00 d~10s 6/15/1975 Green Spring 14:53:00 d=12m8s 6/15/1975 Green Spring 17:55:00 25'+ 6/15/1975 Green Spring 18:20:00 d>4m 6/15/1975 Oblong 9:35:00 6/15/1975 Oblong 16:26:00 6/15/1975 Pink Cone 15:44:00 6/15/1975 Porcupine Hill Geyser 16:54:00 d=63s ~20ft. 6/15/1975 Riverside 10:14:00 6/15/1975 Riverside 15:59:00 6/15/1975 Spectacle 2:16:00 early 6/15/1975 Spectacle 8:53:00 6/16/1975 Old Faithful 3:28:00 6/16/1975 Old Faithful 4:57:00 1:29:00 03:49 6/16/1975 Old Faithful 5:59:00 1:02:00 04:09 6/16/1975 Old Faithful 7:07:00 1:08:00 04:04 6/16/1975 Old Faithful 8:22:00 1:14:00 02:09 8:19 6/16/1975 Old Faithful 9:26:00 1:04:00 04:13 9:14 6/16/1975 Old Faithful 10:39:00 1:13:00 04:23 10:38 6/16/1975 Old Faithful 11:55:00 1:16:00 03:19 11:54 6/16/1975 Old Faithful 13:11:00 1:16:00 04:15 13:02 6/16/1975 Old Faithful 14:25:00 1:16:00 04:15 14:24 6/16/1975 Old Faithful 15:29:00 15:38 6/16/1975 Old Faithful 16:48:00 1:19:00 04:04 6/16/1975 Old Faithful 18:03:00 1:16:00 02:15 18:02 6/16/1975 Old Faithful 18:52:00 0:49:00 04:15 18:54 6/16/1975 Old Faithful 20:13:00 02:15 20:06 6/16/1975 Old Faithful 20:58:00 04:10 21:05 6/16/1975 Beehive 20:15:00 6/16/1975 Beehive's Indicator 12:35:00 ie 6/16/1975 Beehive's Indicator 20:00:00 ie 6/16/1975 Castle 8:15:00 6/16/1975 Castle 18:23:00 6/16/1975 Castle 16:58:00? 6/16/1975 Depression 21:04:00 6/16/1975 Dome active 6/16/1975 Goggles 13:40:00 ie 6/16/1975 Grand 9:34:00 6/16/1975 Grand 17:22:00 "B1,17:22,B2,17:30,B3" 6/16/1975 Grand "17:32,B4,17:33,end 17:34" 6/16/1975 Great Fountain 9:00:00 ie 6/16/1975 Lion 8:48:00 6/16/1975 Lion 10:40:00 6/16/1975 Lion 14:15:00 6/16/1975 Lion 17:14:00 nervous spell 6/16/1975 Riverside 10:00:00 6/16/1975 Riverside 16:05:00 6/16/1975 Round 10:26:00 6/16/1975 Vault 9:55:00 ie 6/16/1975 Vault 10:41:00 6/16/1975 Vault 11:47:00 6/16/1975 Vault 12:42:00 ie 6/16/1975 Vault 13:50:00 6/17/1975 Old Faithful 2:42:03 short 6/17/1975 Old Faithful 3:38:06 0:56:00 04:25 6/17/1975 Old Faithful 4:52:46 1:15:00 04:05 6/17/1975 Old Faithful 5:59:25 1:07:00 04:02 6/17/1975 Old Faithful 7:09:37 1:10:00 04:10 6/17/1975 Old Faithful 8:16:00 1:07:00 02:42 8:20 6/17/1975 Old Faithful 9:13:00 0:57:00 04:30 9:14 6/17/1975 Old Faithful 10:25:00 1:12:00 03:52 10:28 6/17/1975 Old Faithful 11:33:00 1:08:00 03:55 11:38 6/17/1975 Old Faithful 12:39:00 1:06:00 04:31 12:45 6/17/1975 Old Faithful 13:50:00 1:10:00 03:15 13:54 6/17/1975 Old Faithful 15:14:00 1:14:00 04:15 15:00 6/17/1975 Old Faithful 16:20:00 1:06:00 03:33 16:28 6/17/1975 Old Faithful 17:36:00 03:30 17:30 6/17/1975 Old Faithful 18:54:00 04:30 18:46 6/17/1975 Old Faithful 20:04:00 04:00 20:07 6/17/1975 Beehive's Indicator 9:30:00 ie 6/17/1975 Castle 13:09:00 6/17/1975 Daisy 8:43:00 6/17/1975 Daisy 10:04:00 6/17/1975 Daisy 11:50:00 6/17/1975 Daisy 14:04:00 6/17/1975 Daisy 21:08:00 ie 6/17/1975 Daisy 22:34:00 6/17/1975 Grand 0:00:58 6/17/1975 Grand 10:13:00 3B 6/17/1975 Grand 17:29:00 6/17/1975 Grand 17:30:00 6/17/1975 Grand 18:30:00 ie from KL 6/17/1975 Great Fountain 12:30:00 ieVR end of eruption? 6/17/1975 North Goggles 15:25:00 6/17/1975 Oblong 10:32:00 6/17/1975 Penta 17:47:00 d=50m 6/17/1975 Riverside 10:18:00 6/17/1975 Riverside 16:35:00 6/17/1975 Riverside 22:23:00 6/17/1975 Round 9:43:00 6/17/1975 Round 11:39:00 6/17/1975 Round 14:37:00 6/17/1975 Splendid 8:39:00 6/17/1975 Splendid 21:07:00 ie 6/18/1975 Old Faithful 8:05:00 03:45 7:58 6/18/1975 Old Faithful 9:16:00 1:11:00 04:07 9:15 6/18/1975 Old Faithful 10:25:00 1:09:00 04:01 10:28 6/18/1975 Old Faithful 11:32:00 1:07:00 02:05 11:37 6/18/1975 Old Faithful 12:25:00 0:53:00 04:18 12:22 6/18/1975 Old Faithful 13:49:00 1:14:00 01:55 13:38 6/18/1975 Old Faithful 14:36:00 0:47:00 03:30 12:40 6/18/1975 Old Faithful 15:48:00 1:13:00 02:00 15:46 6/18/1975 Old Faithful 16:35:00 0:47:00 04:45 16:48 6/18/1975 Old Faithful 17:57:00 1:22:00 04:10 17:51 6/18/1975 Old Faithful 19:03:00 1:06:00 04:29 19:10 6/18/1975 Old Faithful 20:16:00 1:13:00 04:17 20:18 6/18/1975 Old Faithful 21:21:52 1:05:00 02:56 6/18/1975 Old Faithful 22:25:04 1:03:00 04:39 6/18/1975 Old Faithful 23:35:40 1:11:00 04:08 23:38 6/18/1975 Beehive's Indicator 7:27:00 ie 6/18/1975 Beehive's Indicator 16:35:00 ie 6/18/1975 Beehive's Indicator 19:59:00 ie 6/18/1975 Castle 8:36:00 minor? 6/18/1975 Castle 11:02:00 6/18/1975 Castle ~21:15 6/18/1975 Daisy 10:25:00 6/18/1975 Daisy 11:56:00 6/18/1975 Grand 1:06:00 2B 6/18/1975 Grand 8:54:00 "3B,8:54,9:02,9:04" 6/18/1975 Grand 15:50:00 ie 2B 6/18/1975 Great Fountain 7:15:00 6/18/1975 Great Fountain 18:18:00 6/18/1975 Lion 8:35:00 6/18/1975 Lion 16:11:00 6/18/1975 Lion 17:43:00 6/18/1975 North Goggles 12:38:00 6/18/1975 Riverside 9:52:00 6/18/1975 Riverside 15:40:00 ie 6/18/1975 Riverside 21:30:00 6/18/1975 Splendid 10:24:00 6/19/1975 Old Faithful 4:21:03 0:4:00 ear 6/19/1975 Old Faithful 5:34:38 1:14:00 03:48 6/19/1975 Old Faithful 6:51:04 1:16:00 04:21 6/19/1975 Old Faithful 8:05:59 1:15:00 04:21 6/19/1975 Old Faithful 9:21:00 1:15:00 02:15 6/19/1975 Old Faithful 10:05:00 0:44:00 04:58 10:11 6/19/1975 Old Faithful 11:29:00 1:24:00 02:01 11:20 6/19/1975 Old Faithful 12:13:00 0:44:00 04:38 12:19 6/19/1975 Old Faithful 13:30:00 1:17:00 03:15 13:29 6/19/1975 Old Faithful 14:32:00 1:02:00 03:47 14:40 6/19/1975 Old Faithful 15:59:00 1:27:00 02:00 15:42 6/19/1975 Old Faithful 16:57:00 0:58:00 04:46 16:49 6/19/1975 Old Faithful 18:11:00 1:14:00 04:25 18:13 6/19/1975 Old Faithful 19:25:00 1:14:00 03:45 19:26 6/19/1975 Old Faithful 20:35:00 1:10:00 03:50 20:35 6/19/1975 Old Faithful 21:46:10 1:11:00 03:55 21:45 6/19/1975 Old Faithful 22:57:38 1:11:00 04:23 22:58 6/19/1975 Beehive 7:36:00 6/19/1975 Beehive 19:32:00 6/19/1975 Castle 16:00:00 6/19/1975 Depression 12:06:00 6/19/1975 Grand 0:38:00 6/19/1975 Grand 9:12:00 5B 6/19/1975 Grand 17:42:00 2B 6/19/1975 Great Fountain 13:04:00 6/19/1975 Great Fountain 22:50:00 6/19/1975 Green Spring 10:45:00 ie up to 6' 6/19/1975 Riverside 9:55:00 6/19/1975 Riverside 16:09:00 6/19/1975 Round 15:47:00 6/20/1975 Old Faithful 0:13:49 1:16:00 04:13 0:10 6/20/1975 Old Faithful 3:26:53 04:35 dark 6/20/1975 Old Faithful 4:42:27 1:16:00 04:38 dark 6/20/1975 Old Faithful 5:51:09 1:09:00 04:01 6/20/1975 Old Faithful 6:59:18 1:08:00 04:23 6/20/1975 Old Faithful 8:18:00 01:56 8:12 6/20/1975 Old Faithful 9:06:00 0:48:00 04:36 9:08 6/20/1975 Old Faithful 10:25:00 1:19:00 03:20 10:21 6/20/1975 Old Faithful 11:30:00 1:05:00 04:02 11:35 6/20/1975 Old Faithful 12:39:00 1:09:00 03:44 12:42 6/20/1975 Old Faithful 13:52:00 1:13:00 04:42 13:49 6/20/1975 Old Faithful 15:04:00 1:12:00 02:19 6/20/1975 Old Faithful 15:55:00 0:51:00 04:44 15:56 6/20/1975 Old Faithful 17:09:00 1:14:00 02:15 17:11 6/20/1975 Old Faithful 18:07:00 0:58:00 04:29 18:04 6/20/1975 Old Faithful 19:32:00 1:25:00 01:57 19:22 6/20/1975 Old Faithful 20:19:00 0:47:00 04:17 20:22 6/20/1975 Old Faithful 21:36:28 1:17:00 0:4:08+ 21:32 6/20/1975 Old Faithful 22:51:21 1:15:00 01:51 22:48 6/20/1975 Old Faithful 23:35:44 0:44:00 0:4:18+ 6/20/1975 Beehive 9:24:00 6/20/1975 Beehive 23:00:45 6/20/1975 Beehive's Indicator 17:34:00 6/20/1975 Castle 12:13:00 water phase 6/20/1975 Castle 21:50:00 VR 6/20/1975 Depression 13:33:00 6/20/1975 Grand 10:27:00 2B 6/20/1975 Grand 18:38:00 "4B, d=14m" 6/20/1975 Great Fountain 8:30:00 6/20/1975 Great Fountain 17:45:00 "B1=10m,p0;p1=6m" 6/20/1975 Great Fountain B2=7m;p2=8m 6/20/1975 Pink Cone 20:19:00 ie 6/20/1975 Riverside 10:22:00 6/20/1975 Riverside 16:34:00 6/20/1975 Riverside 22:51:54 6/21/1975 Old Faithful 1:49:36 1:07:00 dbl "long, infra red" 6/21/1975 Old Faithful 3:05:24 1:16:00 "long, infra red" 6/21/1975 Old Faithful 5:27:04 1:11:00 dbl 04:13 6/21/1975 Old Faithful 6:34:13 1:07:00 04:11 6/21/1975 Old Faithful 7:49:00 1:15:00 03:56 7:46 6/21/1975 Old Faithful 8:57:00 1:11:00 04:01 9:01 6/21/1975 Old Faithful 10:08:00 1:11:00 04:26 10:08 6/21/1975 Old Faithful 11:26:00 1:18:00 03:47 11:20 6/21/1975 Old Faithful 12:31:00 1:15:00 04:29 12:36 6/21/1975 Old Faithful 13:44:00 1:13:00 03:16 13:46 6/21/1975 Old Faithful 15:02:00 1:16:00 03:44 14:57 6/21/1975 Old Faithful 16:15:00 1:13:00 01:57 16:06 6/21/1975 Old Faithful 16:58:22 0:43:00 04:30 17:06 6/21/1975 Old Faithful 18:16:00 1:18:00 02:15 6/21/1975 Old Faithful 18:57:00 0:41:00 04:37 19:05 6/21/1975 Old Faithful 20:18:00 1:21:00 01:47 20:10 6/21/1975 Old Faithful 21:15:00 0:57:00 04:55 21:05 6/21/1975 Old Faithful 22:31:03 1:16:00 02:04 22:35 6/21/1975 Old Faithful 23:25:46 0:55:00 04:40 6/21/1975 Beehive 12:40:00 6/21/1975 Castle 7:52:00 6/21/1975 Castle 17:18:00 6/21/1975 Cliff 7:30:00 ie 6/21/1975 Grand 10:18:00 6/21/1975 Grand 17:40:00 VR 3B 6/21/1975 Great Fountain 12:10:00 ie 6/21/1975 Great Fountain 21:42:00 "p=0,B1=13m,3mtobldup" 6/21/1975 Lion 17:36:00 6/21/1975 Lion 22:23:00 ie 6/21/1975 Riverside 11:03:00 6/21/1975 Riverside 16:57:00 VR 6/21/1975 Round 15:12:00 6/21/1975 White Dome VR "intervals 35,45,65m" 6/22/1975 Old Faithful 4:31:45 03:40 6/22/1975 Old Faithful 5:37:14 1:05:00 01:55 6/22/1975 Old Faithful 6:21:46 0:45:00 04:40 6/22/1975 Old Faithful 7:43:00 1:22:00 02:06 7:38 6/22/1975 Old Faithful 8:36:00 1:02:00 03:45 8:34 6/22/1975 Old Faithful 9:52:00 1:16:00 02:07 9:46 6/22/1975 Old Faithful 10:40:00 0:48:00 04:00 10:42 6/22/1975 Old Faithful 11:53:00 1:13:00 04:43 11:56 6/22/1975 Old Faithful 13:02:00 1:09:00 02:45 13:09 6/22/1975 Old Faithful 13:53:00 0:51:00 04:30 13:58 6/22/1975 Old Faithful 15:20:00 1:13:00 02:00 15:10 6/22/1975 Old Faithful 16:16:00 0:56:00 04:21 16:12 6/22/1975 Old Faithful 17:27:00 1:11:00 3 1/2 17:31 6/22/1975 Old Faithful 18:32:00 1:02:00 03:00 18:20 6/22/1975 Old Faithful 19:49:00 1:17:00 04:10 19:43 6/22/1975 Old Faithful 20:55:00 1:04:00 02:00 20:50 6/22/1975 Old Faithful 21:44:58 0:51:00 04:39 21:45 6/22/1975 Old Faithful 23:03:23 1:18:00 03:52 6/22/1975 Beehive 6:10:00 VR 6/22/1975 Beehive 21:24:00 6/22/1975 Beehive 21:25:00 6/22/1975 Castle 12:53:00 6/22/1975 Castle 23:32:00 6/22/1975 Grand 10:14:00 "11m, 2B" 6/22/1975 Grand 18:02:00 6/22/1975 Great Fountain 7:17:00 6/22/1975 Great Fountain 16:00:00 6/22/1975 Lion 9:18:00 6/22/1975 Lion 11:08:00 6/22/1975 Riverside 11:06:00 6/22/1975 Riverside 17:18:00 6/22/1975 Round 8:17:00 6/22/1975 Round 23:07:00 6/22/1975 Three Sisters 15:31:00 6/22/1975 Three Sisters 17:18:00 6/22/1975 Vault 12:21:00 6/22/1975 Vault 13:15:00 6/22/1975 Vault 16:13:00 6/22/1975 Vault 17:13:00 6/22/1975 Vault 19:15:00 6/22/1975 Vault 20:22:10 d=4:52 6/23/1975 Old Faithful 0:11:22 1:08:00 02:04 6/23/1975 Old Faithful 0:58:30 0:47:00 infra red 6/23/1975 Old Faithful 1:22:00dbl 6/23/1975 Old Faithful 3:42:28 04:12 6/23/1975 Old Faithful 4:45:40 1:03:00 04:31 6/23/1975 Old Faithful 6:06:02 1:20:00 04:07 6/23/1975 Old Faithful 7:21:38 1:16:00 01:52 6/23/1975 Old Faithful 8:02:00 0:41:00 04:02 8:20 6/23/1975 Old Faithful 9:30:00 1:28:00 02:09 9:12 6/23/1975 Old Faithful 10:25:00 0:55:00 04:45 10:22 6/23/1975 Old Faithful 11:37:00 1:12:00 02:05 11:41 6/23/1975 Old Faithful 12:24:00 0:47:00 04:50 12:28 6/23/1975 Old Faithful 13:37:00 1:23:00 03:31 13:40 6/23/1975 Old Faithful 14:44:00 1:07:00 01:48 14:46 6/23/1975 Old Faithful 15:39:00 0:55:00 04:38 15:30 6/23/1975 Old Faithful 16:53:00 1:14:00 02:13 16:55 6/23/1975 Old Faithful 17:43:00 0:50:00 05:16 17:45 6/23/1975 Old Faithful 19:08:00 1:15:00 02:00 19:00 6/23/1975 Old Faithful 19:58:00 0:50:00 04:00 19:58 6/23/1975 Old Faithful 21:14:00 1:16:00 01:55 21:10 6/23/1975 Old Faithful 22:02:45 0:49:00 04:06 22:04 6/23/1975 Old Faithful 23:25:29 1:23:00 01:53 6/23/1975 Beehive's Indicator 15:20:00 6/23/1975 Beehive's Indicator 20:02:00 6/23/1975 Castle 9:04:00 6/23/1975 Castle 18:40:00 6/23/1975 Daisy 19:17:00 6/23/1975 Daisy 21:44:00 6/23/1975 Depression 20:02:00 6/23/1975 Fountain 15:31:00 6/23/1975 Grand 9:15:00 6/23/1975 Grand 11:11:00 ie 4B 6/23/1975 Grand 21:35:00 6/23/1975 Great Fountain 9:43:00 6/23/1975 Great Fountain 20:37:00 6/23/1975 Riverside 11:33:00 6/23/1975 Riverside 17:58:00 6/23/1975 Rocket 11:40:00 6/23/1975 Round 12:02:00 6/23/1975 Splendid 18:20:00 6/23/1975 Splendid 20:26:00 6/24/1975 Old Faithful 0:15:11 0:50:00 3:42+ 6/24/1975 Old Faithful 3:40:48 short 6/24/1975 Old Faithful 4:33:10 0:52:00 04:28 6/24/1975 Old Faithful 5:48:37 1:15:00 03:48 6/24/1975 Old Faithful 6:57:16 1:09:00 04:19 6/24/1975 Old Faithful 8:06:20 1:09:00 8:10 6/24/1975 Old Faithful 9:19:00 1:13:00 04:30 9:16 6/24/1975 Old Faithful 10:35:00 1:15:00 02:00 10:34 6/24/1975 Old Faithful 11:25:00 0:50:00 05:00 11:26 6/24/1975 Old Faithful 12:49:00 1:24:00 02:02 12:40 6/24/1975 Old Faithful 13:48:00 0:59:00 05:08 13:39 6/24/1975 Old Faithful 14:59:00 1:12:00 03:15 15:03 6/24/1975 Old Faithful 16:09:00 1:10:00 02:06 16:09 6/24/1975 Old Faithful 17:05:00 0:56:00 4 1/2 16:59 6/24/1975 Old Faithful 18:17:00 1:12:00 03:53 18:15 6/24/1975 Old Faithful 19:25:33 1:10:00 02:03 19:28 6/24/1975 Old Faithful 20:21:00 0:54:00 04:53 6/24/1975 Old Faithful 21:40:00 1:19:00 02:47 6/24/1975 Old Faithful 22:24:40 0:47:00 04:20-04:53 21:36 6/24/1975 Old Faithful 23:44:58 1:20:00 01:50 22:35 6/24/1975 Beehive 1:15:00 VR 6/24/1975 Beehive 16:58:00 6/24/1975 Beehive's Indicator 9:11:00 ie 6/24/1975 Beehive's Indicator 13:18:00 ie 6/24/1975 Bulger 19:10:00 6/24/1975 Bulger 20:27:00 6/24/1975 Castle 13:43:00 6/24/1975 Castle 23:47:00 6/24/1975 Daisy 9:06:00 6/24/1975 Daisy 12:04:00 6/24/1975 Depression 21:00:00 6/24/1975 Grand 13:37:00 end 13:48:08 6/24/1975 Grand 21:00:00 2B 6/24/1975 Great Fountain 13:55:00 VR 6/24/1975 Great Fountain 22:25:00 ie 6/24/1975 Lion 7:23:00 "minor<1m, mostly stm" 6/24/1975 Lion 10:20:00 ie 6/24/1975 Riverside 11:35:00 6/24/1975 Riverside 17:38:00 VR d=22m 6/24/1975 Riverside 23:50:00 6/25/1975 Old Faithful 3:59:50 01:59 6/25/1975 Old Faithful 4:51:24 0:51:34 "long, infra red" 6/25/1975 Old Faithful 6:04:14 1:13:00 0:3:25+ 6/25/1975 Old Faithful 7:20:27 1:16:00 04:36 6/25/1975 Old Faithful 8:32:00 1:12:00 02:07 8:36 6/25/1975 Old Faithful 9:28:00 0:56:00 05:06 9:22 6/25/1975 Old Faithful 10:53:00 1:25:00 01:58 10:43 6/25/1975 Old Faithful 11:44:00 0:57:00 04:00 11:43 6/25/1975 Old Faithful 13:09:00 1:23:00 03:45 13:04 6/25/1975 Old Faithful 14:22:00 1:13:00 04:20 14:19 6/25/1975 Old Faithful 15:41:00 1:19:00 03:24 15:35 6/25/1975 Old Faithful 16:54:00 1:13:00 04:00 16:51 6/25/1975 Old Faithful 18:00:00 1:04:00 03:45 17:10 6/25/1975 Old Faithful 19:16:00 1:16:00 04:03 19:10 6/25/1975 Old Faithful 20:31:00 1:15:00 03:53 20:28 6/25/1975 Old Faithful 21:40:46 1:11:00 03:52 21:43 6/25/1975 Old Faithful 22:54:04 1:13:00 04:05 22:50 6/25/1975 Artemisia 7:35:00 6/25/1975 Beehive 16:55:00 6/25/1975 Beehive's Indicator 7:55:00 ie end before 8:05 6/25/1975 Beehive's Indicator 11:57:00 ie 6/25/1975 Castle 9:27:00 6/25/1975 Castle 19:06:00 6/25/1975 Daisy 6:55:00 ie 6/25/1975 Daisy 19:52:00 6/25/1975 Grand 12:22:00 6/25/1975 Grand 20:25:00 6/25/1975 Great Fountain 6:30:00 ie 6/25/1975 Great Fountain 16:36:00 6/25/1975 Green Spring 10:40:00 ie 6/25/1975 Lion 11:21:00 ie 6/25/1975 Lion 16:36:00 end 18:51 6/25/1975 Lion 18:51:00 6/25/1975 Lion 21:28:00 ie 6/25/1975 Lion 23:59:00 ie 6/25/1975 Riverside 12:16:00 6/25/1975 Riverside 18:17:00 6/25/1975 Round 7:35:00 6/25/1975 Splendid 19:49:00 6/26/1975 Old Faithful 0:05:17 1:11:00 01:53 6/26/1975 Old Faithful 2:12:21 1:04:00dbl 03:31 6/26/1975 Old Faithful 3:20:42 1:08:00 "long, infra red" 6/26/1975 Old Faithful 4:29:12 1:09:00 04:07 6/26/1975 Old Faithful 5:38:37 1:09:00 03:56 6/26/1975 Old Faithful 6:55:24 1:17:00 "long, infra red" 6/26/1975 Old Faithful 8:11:00 1:16:00 03:57 8:06 6/26/1975 Old Faithful 9:22:00 1:12:00 04:15 9:23 6/26/1975 Old Faithful 10:29:00 1:07:00 04:03 10:35 6/26/1975 Old Faithful 11:52:00 1:23:00 03:55 11:41 6/26/1975 Old Faithful 12:56:00 0:54:00 03:30 13:04 6/26/1975 Old Faithful 14:00:00 1:04:00 04:15 6/26/1975 Old Faithful 15:17:00 1:17:00 02:05 15:13 6/26/1975 Old Faithful 16:14:00 0:57:00 04:00 16:07 6/26/1975 Old Faithful 17:32:00 1:18:00 02:07 17:26 6/26/1975 Old Faithful 18:20:00 0:48:00 04:24 18:22 6/26/1975 Old Faithful 19:38:00 1:08:00 04:05 19:35 6/26/1975 Old Faithful 20:47:00 1:09:00 03:41 6/26/1975 Old Faithful 21:50:48 1:05:00 04:23 6/26/1975 Old Faithful 23:04:34 1:14:00 02:02 6/26/1975 Artemisia 19:57:00 ie 6/26/1975 Beehive 12:41:23 d=4m24 steam=2m49 6/26/1975 Beehive 23:49:00 6/26/1975 Beehive's Indicator 8:00:00 6/26/1975 Beehive's Indicator 19:19:00 ie 6/26/1975 Castle 14:45:00 6/26/1975 Fountain 20:36:00 d~3m 6/26/1975 Grand 14:04:00 4B 6/26/1975 Grand 21:49:00 ie 6/26/1975 Great Fountain 10:20:00 ie 6/26/1975 Great Fountain 19:00:00 ie 6/26/1975 Kaleidoscope 19:51:00 6/26/1975 Kaleidoscope 19:54:00 d=21s 6/26/1975 Kaleidoscope 19:58:00 d=21s 6/26/1975 Kaleidoscope 20:03:00 6/26/1975 Kaleidoscope 20:09:00 end of series 6/26/1975 Riverside 0:37:00 6/26/1975 Riverside 7:04:00 VR 6/26/1975 Riverside 13:38:00 6/26/1975 Riverside 19:35:00 6/26/1975 Round 1:39:00 6/26/1975 Splendid 19:57:00 6/27/1975 Old Faithful 0:07:15 1:03:00 04:49 6/27/1975 Old Faithful 1:25:00 1:18:00 "short, infra red" 6/27/1975 Old Faithful 2:23:36 0:59:00 04:44 6/27/1975 Old Faithful 3:46:12 1:23:00 04:05 6/27/1975 Old Faithful 4:51:01 1:05:00 04:14 6/27/1975 Old Faithful 5:59:24 1:08:00 04:28 6/27/1975 Old Faithful 7:10:46 1:11:00 04:23 6/27/1975 Old Faithful 8:21:00 1:10:00 01:49 8:22 6/27/1975 Old Faithful 9:17:00 0:49:00 04:30 9:08 6/27/1975 Old Faithful 10:26:00 1:09:00 03:53 10:32 6/27/1975 Old Faithful 11:29:00 1:03:00 04:19 11:36 6/27/1975 Old Faithful 12:48:00 1:19:00 02:01 12:42 6/27/1975 Old Faithful 13:33:00 0:45:00 04:43 13:38 6/27/1975 Old Faithful 15:01:00 1:29:00 02:00 14:48 6/27/1975 Old Faithful 15:48:00 0:47:00 04:45 15:51 6/27/1975 Old Faithful 17:05:00 1:17:00 02:00 17:06 6/27/1975 Old Faithful 17:57:00 0:52:00 04:22 17:55 6/27/1975 Old Faithful 19:08:00 1:11:00 02:15 19:12 6/27/1975 Old Faithful 20:01:00 0:53:00 04:30 20:00 6/27/1975 Old Faithful 21:07:45 1:09:00 04:23 21:16 6/27/1975 Old Faithful 22:20:10 1:12:00 02:01 22:20 6/27/1975 Old Faithful 23:12:51 0:53:00 04:04 6/27/1975 Beehive ~10:29:00 end 10:34 6/27/1975 Castle 0:09:00 ie 6/27/1975 Castle 9:45:00 6/27/1975 Castle 19:15:00 ie ~2m from start 6/27/1975 Grand 13:07:00 ie 3B 6/27/1975 Grand 20:58:00 3B 6/27/1975 Great Fountain 12:22:00 through 12:34 6/27/1975 Riverside 7:15:00 6/27/1975 Riverside 13:15:00 6/27/1975 Riverside 19:19:00 6/27/1975 Round 6:52:00 6/27/1975 Round 21:02:00 6/27/1975 Round 22:22:00 6/28/1975 Old Faithful 0:31:58 1:19:00 03:32-04:12 6/28/1975 Old Faithful 1:43:58 1:12:00 04:09 6/28/1975 Old Faithful 2:56:52 1:13:00 0:3:50+ 6/28/1975 Old Faithful 4:12:55 1:16:00 02:11 6/28/1975 Old Faithful 5:10:12 0:57:00 04:34 6/28/1975 Old Faithful 6:25:01 1:15:00 03:54 6/28/1975 Old Faithful 7:33:07 1:08:00 04:24 7:36 6/28/1975 Old Faithful 8:52:23 1:19:00 03:57 8:46 6/28/1975 Old Faithful 10:01:14 1:09:00 01:47 10:04 6/28/1975 Old Faithful 11:01:58 1:01:00 03:50 10:48 6/28/1975 Old Faithful 12:21:35 1:20:00 04:32 12:14 6/28/1975 Old Faithful 13:28:00 1:07:00 03:52 13:37 6/28/1975 Old Faithful 14:35:00 1:07:00 04:23 14:40 6/28/1975 Old Faithful 15:46:00 1:11:00 02:07 15:50 6/28/1975 Old Faithful 16:45:00 0:59:00 04:52 16:36 6/28/1975 Old Faithful 18:00:00 1:15:00 04:35 17:55 6/28/1975 Old Faithful 19:11:00 1:11:00 ~4 1/4 19:15 6/28/1975 Old Faithful 20:22:00 1:11:00 03:54 20:21 6/28/1975 Old Faithful 21:24:05 1:03:00 04:26 21:34 6/28/1975 Old Faithful 22:39:19 1:15:00 02:05 6/28/1975 Old Faithful 23:24:42 0:45:00 04:41 6/28/1975 Beehive 12:19:05 d=4:29 6/28/1975 Beehive's Indicator 8:30:00 6/28/1975 Beehive's Indicator 12:18:00 ie 6/28/1975 Beehive's Indicator 18:36:00 ie 6/28/1975 Castle 15:46:00 6/28/1975 Daisy 19:40:00 ie 6/28/1975 Daisy? 21:18:00 6/28/1975 Depression 9:27:00 ie 6/28/1975 Grand 14:03:00 4B 6/28/1975 Grand 22:25:00 3B 6/28/1975 Lion 12:14:00 ie 6/28/1975 Lion 16:14:00 6/28/1975 Lion 17:29:00 6/28/1975 Lion 19:17:00 nervous spell 6/28/1975 Lion 21:17:00 6/28/1975 Oblong 16:03:00 ie 6/28/1975 Riverside 7:55:00 6/28/1975 Riverside 20:00:00 ie 6/28/1975 Round 11:01:00 116' 6/28/1975 Uncertain 1:35:00 6/28/1975 Splendid 19:40:00 ie 6/29/1975 Old Faithful 0:42:19 1:18:00 02:07 6/29/1975 Old Faithful 1:35:05 0:53:00 04:32 6/29/1975 Old Faithful 2:52:15 1:17:00 01:55 6/29/1975 Old Faithful 3:47:37 0:55:00 03:53+ 6/29/1975 Old Faithful 5:11:19 1:24:00 03:57 6/29/1975 Old Faithful 6:25:54 1:15:00 01:54 6/29/1975 Old Faithful 7:17:31 0:52:00 04:46 6/29/1975 Old Faithful 8:39:00 1:22:00 01:48 8:34 6/29/1975 Old Faithful 9:32:00 0:53:00 04:45 9:30 6/29/1975 Old Faithful 11:02:00 1:30:00 03:35 10:48 6/29/1975 Old Faithful 13:19:00 04:00 6/29/1975 Old Faithful 14:37:00 1:18:00 04:00 14:32 6/29/1975 Old Faithful 15:42:00 1:05:00 03:44 15:49 6/29/1975 Old Faithful 16:59:00 1:17:00 04:00 16:52 6/29/1975 Old Faithful 18:01:00 1:02:00 04:00 17:11 6/29/1975 Old Faithful 19:16:00 1:15:00 04:00 18:12 6/29/1975 Old Faithful 20:26:00 1:10:00 03:53 20:22 6/29/1975 Old Faithful 21:36:25 1:11:00 04:22 6/29/1975 Old Faithful 22:46:07 1:10:00 01:53 6/29/1975 Old Faithful 23:30:52 0:45:00 04:41 6/29/1975 Artemisia 15:42:00 6/29/1975 Beehive 19:22:00 6/29/1975 Castle 10:30:00 10:31 ie 6/29/1975 Castle 14:18:00 6/29/1975 Castle 20:19:00 6/29/1975 Cliff 15:30:00 ie 6/29/1975 Daisy 8:23:00 6/29/1975 Depression 10:09:00 6/29/1975 Giantess 8:22:00 "started overflow,lg stm" 6/29/1975 Giantess 8:22:00 hvy oflw seen thru glass 6/29/1975 Giantess 8:29:00 stm expl ev 2 sec w P 6/29/1975 Giantess 8:46:00 endB1<50ft &stm expl 6/29/1975 Giantess 8:47:00 cricket sound heard 6/29/1975 Giantess 8:57:22 "B2,abrupt,hi, no stm expl" 6/29/1975 Giantess 9:03:05 steam phase 6/29/1975 Giantess 10:19:00 water appears 6/29/1975 Giantess 10:32:05 back to water phase 6/29/1975 Giantess 10:41:00 burst water 6/29/1975 Giantess 17:11:00 6/29/1975 Giantess 17:40:00 6/29/1975 Giantess 18:06:00 6/29/1975 Giantess 18:32:00 6/29/1975 Giantess 21:38:00 d~6m 6/29/1975 Grand 15:17:00 6/29/1975 Great Fountain 1:36:00 6/29/1975 Great Fountain 11:32:00 6/29/1975 Lion 9:14:00 6/29/1975 Lion 10:58:00 6/29/1975 Midget active 6/29/1975 Oblong 14:08:00 6/29/1975 Riverside 13:21:00 6/29/1975 Riverside 19:48:00 6/29/1975 Vault 8:31:00 full 6/29/1975 Vault 8:38:00 "down 1/2""" 6/29/1975 Vault 8:47:00 "down 1""" 6/29/1975 Vault 8:55:00 "down 1 3/4""" 6/29/1975 Vault 9:24:00 not seen from boardwk 6/29/1975 Vault 11:36:21 end 11:52:14 6/29/1975 Vault 11:53:08 end 12:04:47 6/29/1975 Vault? 12:19:00 minor 6/30/1975 Old Faithful 0:48:55 1:18:00 01:45 6/30/1975 Old Faithful 1:34:29 0:46:00 04:49 6/30/1975 Old Faithful 3:03:17 1:29:00 04:01 6/30/1975 Old Faithful 5:00:24 0:59:00dbl "long, infra red" 6/30/1975 Old Faithful 6:12:15 1:12:00 03:57 6/30/1975 Old Faithful 7:38:27 1:26:00 02:10 6/30/1975 Old Faithful 8:21:30 0:43:00 0:4:14+ 8:30 6/30/1975 Old Faithful 9:45:00 1:24:00 02:33 9:36 6/30/1975 Old Faithful 10:41:00 0:56:00 04:34 10:37 6/30/1975 Old Faithful 12:08:00 1:27:00 01:58 11:54 6/30/1975 Old Faithful 12:50:00 0:42:00 04:43 12:54 6/30/1975 Old Faithful 14:10:00 1:20:00 01:44 14:06 6/30/1975 Old Faithful 14:57:00 0:47:00 04:39 14:57 6/30/1975 Old Faithful 16:07:00 1:10:00 03:52 16:13 6/30/1975 Old Faithful 17:23:00 1:16:00 04:29 17:18 6/30/1975 Old Faithful 18:33:00 1:10:00 02:01 6/30/1975 Old Faithful 19:20:00 0:47:00 04:50 19:22 6/30/1975 Old Faithful 20:36:00 1:16:00 01:58 20:36 6/30/1975 Old Faithful 21:24:00 0:48:00 ~04:50 21:26 6/30/1975 Old Faithful 22:41:32 1:18:00 01:51 22:40 6/30/1975 Old Faithful 23:28:02 0:46:00 04:37 6/30/1975 Beehive's Indicator 9:03:00 d=24m 6/30/1975 Beehive's Indicator 20:22:00 ie 6/30/1975 Castle 2:50:00 ie 6/30/1975 Castle 14:45:00 started 6/30/1975 Cliff 8:26:00 ie 6/30/1975 Cliff 10:52:00 6/30/1975 Daisy 15:55:00 6/30/1975 Depression 17:28:00 6/30/1975 Giantess 8:48:00 ie 6/30/1975 Giantess 9:40:18 d=8m48s 6/30/1975 Giantess 10:48:00 ie d~8m 6/30/1975 Giantess 10:53:00 VR d=10m 6/30/1975 Giantess 12:09:14 d=10m50s 6/30/1975 Giantess 14:05:00 6/30/1975 Giantess 15:03:00 6/30/1975 Giantess 16:52:00 6/30/1975 Giantess 18:00:00 d=6m10s 6/30/1975 Giantess 20:47:00 ~13m 6/30/1975 Grand 7:42:00 ie 6/30/1975 Grand 16:44:00 1B 6/30/1975 Great Fountain 10:25:00 VR begin 6/30/1975 Great Fountain 10:30:00 ieVR 6/30/1975 Green Spring <8:15:00 6/30/1975 Green Spring 10:28:00 6/30/1975 Riverside 7:52:00 6/30/1975 Riverside 13:49:00 6/30/1975 Round 17:52:00 6/30/1975 Spectacle 12:47:00 6/30/1975 Spectacle 17:51:00 6/30/1975 Splendid 15:54:00 7/1/1975 Old Faithful 0:49:08 1:21:00 02:07 7/1/1975 Old Faithful 1:37:18 0:48:00 04:45 7/1/1975 Old Faithful 2:56:02 1:19:00 02:02 7/1/1975 Old Faithful 3:48:00 0:52:00 "long, infra red" 7/1/1975 Old Faithful 5:00:12 1:12:00 03:54 7/1/1975 Old Faithful 6:15:12 1:15:00 <02:01 7/1/1975 Old Faithful 7:07:05 0:52:00 04:44 7/1/1975 Old Faithful 8:26:00 1:19:00 04:07 8:22 7/1/1975 Old Faithful 9:34:46 1:12:00 01:52 9:38 7/1/1975 Old Faithful 10:43:00 1:09:00 04:51 10:23 7/1/1975 Old Faithful 12:12:00 1:29:00 04:09 11:59 7/1/1975 Old Faithful 13:16:00 1:04:00 ~04:41 13:24? 7/1/1975 Old Faithful 14:35:00 1:19:00 01:52 14:32 7/1/1975 Old Faithful 15:18:00 0:43:00 05:07 15:24 7/1/1975 Old Faithful 16:34:00 1:16:00 02:06 16:33 7/1/1975 Old Faithful 17:31:00 0:57:00 03:45 17:24 7/1/1975 Old Faithful 18:42:00 1:11:00 04:10 18:31 7/1/1975 Old Faithful 19:59:00 1:17:00 01:45 19:57 7/1/1975 Old Faithful 20:44:00 04:20 20:48 7/1/1975 Old Faithful 21:58:46 02:13 7/1/1975 Old Faithful 22:48:45 04:22 ear 7/1/1975 Beehive's Indicator 7:04:00 ie 7/1/1975 Castle 9:50:00 ie 7/1/1975 Castle 20:20:00 7/1/1975 Daisy? 15:14:00 7/1/1975 Grand 7:56:00 7/1/1975 Grand 17:05:00 VR 7/1/1975 Great Fountain 10:50:00 10:40-1st splash 7/1/1975 Great Fountain 19:50:00 VR 7/1/1975 Green Spring 12:26:00 ie "d>6m, ~8'" 7/1/1975 Lone Star 11:35:00 VR 7/1/1975 Riverside 17:02:00 VR 7/1/1975 Riverside 22:30:00 ieVR 7/1/1975 Splendid? 15:14:00 7/2/1975 Old Faithful 0:06:36 04:05 7/2/1975 Old Faithful 1:08:11 1:02:00 04:05 7/2/1975 Old Faithful 2:22:42 1:15:00 0:3:11+ 7/2/1975 Old Faithful 3:26:37 1:04:00 "short, from infra red" 7/2/1975 Old Faithful 4:11:45 0:45:00 04:34 7/2/1975 Old Faithful 5:36:43 1:25:00 01:51 7/2/1975 Old Faithful 6:26:18 0:50:00 04:25 7/2/1975 Old Faithful 7:43:54 1:18:00 02:07 7:42 7/2/1975 Old Faithful 8:33:00 0:50:00 03:39 8:34 7/2/1975 Old Faithful 9:59:00 1:19:00 02:00 9:44 7/2/1975 Old Faithful 10:47:00 0:48:00 04:30 10:40 7/2/1975 Old Faithful 11:59:00 1:12:00 03:54 11:02 7/2/1975 Old Faithful 13:23:00 1:24:00 03:30 7/2/1975 Old Faithful 14:27:00 1:04:00 04:13 14:35 7/2/1975 Old Faithful 15:37:00 1:10:00 03:56 15:40 7/2/1975 Old Faithful 16:48:00 1:11:00 04:21 16:49 7/2/1975 Old Faithful 18:06:00 1:18:00 04:20 18:02 7/2/1975 Old Faithful 19:09:00 1:03:00 01:53 19:21 7/2/1975 Old Faithful 19:54:00 0:45:00 04:36 19:56 7/2/1975 Old Faithful 21:09:28 1:16:00 01:52 7/2/1975 Old Faithful 21:56:44 0:47:00 04:24-04:44 by ear 7/2/1975 Old Faithful 23:19:33 1:23:00 02:09 7/2/1975 Beehive's Indicator 8:56:00 7/2/1975 Castle 6:17:00 ie 7/2/1975 Castle 15:34:00 7/2/1975 Daisy 19:57:00 7/2/1975 Daisy 21:23:00 7/2/1975 Grand 8:28:00 3B 7/2/1975 Grand 16:28:00 "4B, B1=11m" 7/2/1975 Great Fountain 11:30:00 ieVR 7/2/1975 Great Fountain 19:03:00 VR "d=1 1/2h, 50ft.high" 7/2/1975 Great Fountain ?19:15:00 VR 7/2/1975 Lion 19:12:00 ie 7/2/1975 Oblong 8:42:00 7/2/1975 Pink Cone 7:10:00 ie 7/2/1975 Riverside 9:12:00 7/2/1975 Riverside 14:32:00 7/2/1975 Riverside 19:50:00 7/3/1975 Old Faithful 0:21:35 1:02:00 04:44 7/3/1975 Old Faithful 1:34:29 1:13:00 01:58 7/3/1975 Old Faithful 2:27:04 0:53:00 03:48+ 7/3/1975 Old Faithful 3:44:58 1:18:00 01:46 7/3/1975 Old Faithful 4:40:28 0:56:00 04:19+ 7/3/1975 Old Faithful 6:01:17 1:21:00 04:05 7/3/1975 Old Faithful 7:16:58 1:16:00 04:02 7/3/1975 Old Faithful 8:26:00 1:00:00 03:30 8:28 7/3/1975 Old Faithful 9:36:00 1:10:00 03:10 9:36 7/3/1975 Old Faithful 10:43:00 1:10:00 03:23 10:46 7/3/1975 Old Faithful 12:01:00 1:18:00 04:00 10:52 7/3/1975 Old Faithful 13:07:00 1:06:00 03:55 7/3/1975 Old Faithful 14:34:00 1:27:00 02:22 14:19 7/3/1975 Old Faithful 15:17:00 0:43:00 03:58 15:26 7/3/1975 Old Faithful 16:34:00 1:17:00 01:39 16:29 7/3/1975 Old Faithful 17:24:00 0:50:00 05:05 17:19 7/3/1975 Old Faithful 18:40:00 1:16:00 01:45 18:40 7/3/1975 Old Faithful 19:38:00 0:58:00 04:10 19:27 7/3/1975 Old Faithful 20:50:00 1:12:00 01:58 7/3/1975 Old Faithful 21:45:33 0:56:00 04:25 21:40 7/3/1975 Old Faithful 23:04:55 1:19:00 02:02 7/3/1975 Old Faithful 23:47:36 0:43:00 04:22 7/3/1975 Beehive 22:40:00 7/3/1975 Beehive's Indicator 6:58:00 ie 7/3/1975 Castle 1:57:00 7/3/1975 Castle 11:50:00 VR 7/3/1975 Castle 22:18:00 7/3/1975 Daisy 1:09:00 7/3/1975 Daisy 9:10:00 VR 7/3/1975 Daisy 13:03:00 7/3/1975 Daisy 15:45:00 7/3/1975 Daisy 16:59:00 7/3/1975 Daisy 19:57:00 7/3/1975 Daisy 22:30:00 7/3/1975 Daisy 23:48:00 7/3/1975 Depression 13:13:00 7/3/1975 Grand 0:28:00 7/3/1975 Grand ?5:00:00 7/3/1975 Grand 9:14:00 ie 7/3/1975 Grand 17:10:00 2B 7/3/1975 Great Fountain 13:15:00 ie beginning probably 13:00 7/3/1975 North Goggles 8:34:00 7/3/1975 Oblong 0:51:00 7/3/1975 Oblong 16:28:00 7/3/1975 Penta 10:31:00 7/3/1975 Penta 15:35:00 d=46m 7/3/1975 Radiator 21:06:00 7/3/1975 Riverside 11:58:00 7/3/1975 Riverside 17:10:00 7/3/1975 Riverside 22:39:00 7/3/1975 Round 22:29:00 7/3/1975 Spectacle 22:47:00 7/4/1975 Old Faithful 1:08:24 1:21:00 01:45 7/4/1975 Old Faithful 1:54:21 0:46:00 04:34 7/4/1975 Old Faithful 3:16:18 1:22:00 02:40 7/4/1975 Old Faithful 4:06:45 0:50:00 04:42 7/4/1975 Old Faithful 5:33:51 1:27:00 02:07 7/4/1975 Old Faithful 6:20:16 0:46:00 04:22 7/4/1975 Old Faithful 7:40:02 1:20:00 04:30 7/4/1975 Old Faithful 8:54:00 1:14:00 02:00 8:52 7/4/1975 Old Faithful 9:37:00 0:43:00 04:00 9:44 7/4/1975 Old Faithful 10:59:00 1:22:00 01:50 10:49 7/4/1975 Old Faithful 11:40:00 0:41:00 04:11 11:49 7/4/1975 Old Faithful 13:04:00 1:24:00 02:14 12:53 7/4/1975 Old Faithful 13:54:00 0:50:00 05:01 13:56 7/4/1975 Old Faithful 15:09:00 1:15:00 03:09 15:09 7/4/1975 Old Faithful 16:07:00 0:58:00 04:49 16:19 7/4/1975 Old Faithful 17:25:00 1:18:00 02:01 17:23 7/4/1975 Old Faithful 18:12:00 0:47:00 04:25 18:15 7/4/1975 Old Faithful 19:36:00 1:24:00 01:51 19:28 7/4/1975 Old Faithful 20:24:00 0:48:00 04:21 20:24 7/4/1975 Old Faithful 21:38:12 1:14:00 02:20 21:39 7/4/1975 Old Faithful 22:22:33 0:44:00 04:32 7/4/1975 Old Faithful 23:42:28 1:20:00 01:45 7/4/1975 Beehive's Indicator 8:00:00 ie 7/4/1975 Castle 7:55:00 7/4/1975 Castle 8:12:00 ie steam 7/4/1975 Castle 18:32:00 ie 7/4/1975 Daisy 1:04:00 7/4/1975 Daisy 2:18:00 7/4/1975 Daisy 8:41:00 7/4/1975 Daisy 13:20:00 13:28 VR 7/4/1975 Daisy 14:54:00 7/4/1975 Daisy 16:21:00 7/4/1975 Grand 1:43:00 2B 7/4/1975 Grand 9:33:00 7/4/1975 Grand 16:44:00 1B 7/4/1975 Great Fountain 14:00:00 ie 7/4/1975 Oblong 9:30:00 7/4/1975 Riverside 10:03:00 7/4/1975 Riverside 15:23:00 ie 7/4/1975 Round 11:50:00 7/4/1975 Spectacle 13:34:00 7/4/1975 Splendid 12:20:00 ie 7/4/1975 Splendid 15:15:00 VR 7/5/1975 Old Faithful 0:24:48 0:42:00 04:09+ 7/5/1975 Old Faithful 1:46:17 1:21:00 01:59 7/5/1975 Old Faithful 2:34:39 0:48:00 04:30 7/5/1975 Old Faithful 3:58:40 1:24:00 01:48 7/5/1975 Old Faithful 4:46:54 0:48:00 "long, infra red" 7/5/1975 Old Faithful 5:55:29 1:09:00 03:48 7/5/1975 Old Faithful 7:03:27 1:08:00 03:57 7/5/1975 Old Faithful 8:07:27 1:04:00 04:10 8:12 7/5/1975 Old Faithful 9:16:00 1:09:00 03:06 9:20 7/5/1975 Old Faithful 10:34:00 1:17:00 04:10 10:19 7/5/1975 Old Faithful 11:43:00 1:09:00 04:10 11:44 7/5/1975 Old Faithful 12:57:00 1:17:00 02:25 12:56 7/5/1975 Old Faithful 13:47:00 0:50:00 04:04 13:44 7/5/1975 Old Faithful 15:03:00 0:55:00 02:30 14:59 7/5/1975 Old Faithful 15:59:00 0:56:00 04:00 15:54 7/5/1975 Old Faithful 17:14:00 1:05:00 01:51 7/5/1975 Old Faithful 18:05:00 0:51:00 05:02 18:02 7/5/1975 Old Faithful 19:29:00 1:24:00 01:42 19:20 7/5/1975 Old Faithful 20:18:00 0:49:00 04:25 20:16 7/5/1975 Old Faithful 21:38:46 1:15:00 02:11 21:33 7/5/1975 Old Faithful 22:53:42 0:47:00 04:30 7/5/1975 Old Faithful 23:40:44 1:18:00 02:11 7/5/1975 Beehive's Indicator 18:55:00 ie 7/5/1975 Castle 14:11:00 ie 7/5/1975 Castle 23:37:00 7/5/1975 Daisy 13:24:00 7/5/1975 Daisy 21:08:00 7/5/1975 Daisy 22:40:00 7/5/1975 Grand 9:04:00 3B 7/5/1975 Grand 16:11:00 7/5/1975 Grand 23:41:00 "3B, 14m" 7/5/1975 Great Fountain 15:27:00 6m overflow 7/5/1975 Green Spring 10:40:00 7/5/1975 Oblong 8:47:00 7/5/1975 Riverside 8:01:00 7/5/1975 Riverside 13:51:00 7/5/1975 Round 17:30:00 7/6/1975 Old Faithful 0:58:13 1:18:00 02:11 7/6/1975 Old Faithful 1:46:56 0:49:00 04:42 7/6/1975 Old Faithful 3:05:26 1:19:00 01:57 7/6/1975 Old Faithful 4:00:46 0:55:00 04:28 7/6/1975 Old Faithful 5:11:56 1:11:00 01:57 7/6/1975 Old Faithful 6:01:23 0:49:00 "long, infra red" 7/6/1975 Old Faithful 7:22:01 1:21:00 01:49 7/6/1975 Old Faithful 8:10:00 0:48:00 04:30 7/6/1975 Old Faithful 9:29:00 1:19:00 03:43 9:24 7/6/1975 Old Faithful 10:35:00 1:06:00 04:15 10:38 7/6/1975 Old Faithful 12:01:00 1:26:00 02:23 11:48 7/6/1975 Old Faithful 12:53:00 0:52:00 04:45 12:53 7/6/1975 Old Faithful 14:20:00 1:10:00 03:45 14:09 7/6/1975 Old Faithful 15:39:00 1:19:00 04:15 15:30 7/6/1975 Old Faithful 16:52:00 1:12:00 02:08 16:52 7/6/1975 Old Faithful 17:39:00 0:47:00 04:00 17:42 7/6/1975 Old Faithful 18:56:00 1:17:00 02:00 18:52 7/6/1975 Old Faithful 19:44:00 0:48:00 03:50 19:46 7/6/1975 Old Faithful 21:05:00 1:22:00 02:01 18:55 7/6/1975 Old Faithful 21:55:18 0:51:00 ~05:00 21:55 7/6/1975 Old Faithful 23:19:53 1:25:00 02:00 7/6/1975 Beehive 9:38:00 ie 7/6/1975 Beehive's Indicator 15:00:00 ie 7/6/1975 Castle 8:46:00 7/6/1975 Castle 18:50:00 7/6/1975 Daisy 12:51:00 7/6/1975 Daisy 14:07:00 7/6/1975 Daisy 15:23:00 7/6/1975 Daisy 16:47:40 7/6/1975 Daisy 17:45:00 7/6/1975 Daisy 20:20:00 7/6/1975 Daisy 21:30:00 7/6/1975 Grand 14:35:00 4B 7/6/1975 Grand 21:56:00 7/6/1975 Great Fountain 15:48:00 7/6/1975 Great Fountain 23:33:00 P=6m 7/6/1975 North Goggles 15:04:00 7/6/1975 Oblong 8:37:00 7/6/1975 Oblong 14:46:00 7/6/1975 Riverside 12:02:00 7/6/1975 Riverside 18:00:00 VR 7/6/1975 Round 13:22:00 7/6/1975 Old Faithful 0:15:34 0:56:00 04:45 7/7/1975 Old Faithful 1:25:44 1:10:00 01:48 7/7/1975 Old Faithful 2:13:21 0:48:00 04:39 7/7/1975 Old Faithful 3:42:28 1:29:00 03:28 7/7/1975 Old Faithful 4:53:38 1:11:00 04:24 7/7/1975 Old Faithful 6:01:50 1:08:00 04:01 7/7/1975 Old Faithful 7:12:33 1:11:00 03:52 7/7/1975 Old Faithful 8:25:13 1:13:00 04:22 8:22 7/7/1975 Old Faithful 9:28:00 1:03:00 04:09 9:34 7/7/1975 Old Faithful 10:36:00 1:08:00 03:40 10:41 7/7/1975 Old Faithful 11:51:00 1:15:00 03:50 11:46 7/7/1975 Old Faithful 13:09:00 1:18:00 04:15 7/7/1975 Old Faithful 14:22:00 1:12:00 03:30 14:22 7/7/1975 Old Faithful 15:34:00 1:14:00 03:45 15:54 7/7/1975 Old Faithful 16:50:00 1:16:00 01:45 16:56 7/7/1975 Old Faithful 17:32:00 0:42:00 04:09 17:40 7/7/1975 Old Faithful 18:50:00 1:18:00 04:04 7/7/1975 Old Faithful 19:52:00 1:02:00 04:42 20:02 7/7/1975 Old Faithful 21:16:00 1:24:00 02:01 21:06 7/7/1975 Old Faithful 22:21:40 1:06:00 04:30 22:06 7/7/1975 Old Faithful 23:35:41 1:14:00 04:00 7/7/1975 Artemisia 13:31:00 7/7/1975 Atomizer 15:52:00 d=30 sec 7/7/1975 Beehive's Indicator 14:05:00 7/7/1975 Castle 5:00:00 ie 7/7/1975 Castle 14:27:00 7/7/1975 Daisy 9:45:02 7/7/1975 Daisy 11:00:00 7/7/1975 Daisy 12:16:00 7/7/1975 Daisy 13:26:00 7/7/1975 Daisy 14:38:00 7/7/1975 Daisy 16:00:00 7/7/1975 Daisy 17:07:00 7/7/1975 Daisy 19:35:00 7/7/1975 Daisy 20:50:00 d=3:36 7/7/1975 Daisy 21:44:00 7/7/1975 Daisy 22:05:00 7/7/1975 Daisy 23:08:00 7/7/1975 Daisy 23:17:00 7/7/1975 Grand 5:38:30 "wvs73s,B1=10m10,P34s" 7/7/1975 Grand 5:38:30 "B2=2m10,d=12m54" 7/7/1975 Grand 13:29:00 7/7/1975 Grand 21:34:00 3B 7/7/1975 Great Fountain 8:48:00 P=6 7/7/1975 Great Fountain 17:25:00 VR 7/7/1975 Lion 11:20:00 7/7/1975 Lion 12:48:00 7/7/1975 Lion 14:03:00 7/7/1975 North Goggles 14:44:00 7/7/1975 Riverside 5:05:00 ie 7/7/1975 Riverside 10:22:00 7/7/1975 Riverside 15:15:00 VR 7/7/1975 Riverside 20:40:00 7/7/1975 Round 15:27:00 7/7/1975 Spectacle 12:41:00 7/7/1975 Turban 5:38:21 7/7/1975 White Dome interval=131m 7/8/1975 Old Faithful 0:47:25 1:12:00 01:53 7/8/1975 Old Faithful 1:27:36 0:40:00 04:48 7/8/1975 Old Faithful 2:50:42 1:23:00 01:55 7/8/1975 Old Faithful 3:42:11 0:51:00 04:38 7/8/1975 Old Faithful 5:00:06 1:18:00 "short, infra red" 7/8/1975 Old Faithful 5:42:32 0:43:00 04:36 7/8/1975 Old Faithful 6:56:46 1:14:00 01:40 7/8/1975 Old Faithful 7:41:16 0:44:00 04:35 7:40 7/8/1975 Old Faithful 9:02:00 1:21:00 01:51 8:56 7/8/1975 Old Faithful 9:46:24 0:42:00 04:53 9:50 7/8/1975 Old Faithful 10:57:00 1:11:00 03:42 11:00 7/8/1975 Old Faithful 12:00:20 1:03:00 04:21 12:07 7/8/1975 Old Faithful 13:16:00 1:16:00 04:01 13:14 7/8/1975 Old Faithful 14:34:00 1:38:00 01:55 14:28 7/8/1975 Old Faithful 15:19:00 0:45:00 04:00 15:22 7/8/1975 Old Faithful 16:35:00 1:16:00 02:01 16:32 7/8/1975 Old Faithful 17:18:00 0:43:00 05:06 17:25 7/8/1975 Old Faithful 18:45:00 1:35:00 02:00 18:33 7/8/1975 Old Faithful 19:28:00 0:43:00 04:15 19:35 7/8/1975 Old Faithful 20:52:00 1:24:00 02:00 20:40 7/8/1975 Old Faithful 21:43:00 0:51:00 04:25 21:37 7/8/1975 Old Faithful 23:02:57 1:20:00 01:51 7/8/1975 Old Faithful 23:54:49 0:52:00 04:33 7/8/1975 Beehive ~5:15:00 7/8/1975 Beehive's Indicator 14:45:00 7/8/1975 Beehive's Indicator 21:33:00 7/8/1975 Castle 0:25:00 7/8/1975 Castle 10:41:00 7/8/1975 Castle 20:07:00 7/8/1975 Daisy 0:31:00 7/8/1975 Daisy 6:56:00 7/8/1975 Daisy 8:11:00 7/8/1975 Daisy 9:28:00 7/8/1975 Daisy 10:40:00 ie 7/8/1975 Daisy 11:51:00 7/8/1975 Daisy 13:10:00 7/8/1975 Daisy 14:19:00 7/8/1975 Grand 5:22:00 7/8/1975 Grand 13:20:00 ie 7/8/1975 Great Fountain 1:57:00 7/8/1975 Great Fountain 10:45:00 ie 10:43? 7/8/1975 Oblong 9:32:00 7/8/1975 Pink Cone 11:10:00 ie 7/8/1975 Riverside 8:07:00 7/8/1975 Riverside 13:56:00 7/8/1975 Round 12:14:00 7/8/1975 Round 14:35:00 7/9/1975 Old Faithful 1:15:55 1:21:00 03:46 7/9/1975 Old Faithful 2:31:47 1:16:00 04:24 7/9/1975 Old Faithful 3:50:53 1:19:00 04:14 7/9/1975 Old Faithful 5:12:00 1:21:00 03:24 7/9/1975 Old Faithful 6:22:13 1:10:00 04:09 7/9/1975 Old Faithful 7:34:11 1:12:00 03:58 7/9/1975 Old Faithful 8:47:00 1:07:00 02:15 8:46 7/9/1975 Old Faithful 9:45:00 0:55:00 04:00 9:48 7/9/1975 Old Faithful 11:07:00 1:22:00 01:57 10:56 7/9/1975 Old Faithful 11:59:00 0:52:00 04:59 11:57 7/9/1975 Old Faithful 13:20:00 1:21:00 01:40 13:14 7/9/1975 Old Faithful 14:05:00 0:45:00 03:59 14:07 7/9/1975 Old Faithful 15:28:00 1:23:00 04:08 15:17 7/9/1975 Old Faithful 16:33:00 1:05:00 02:23 16:40 7/9/1975 Old Faithful 17:32:00 0:59:00 04:52 17:25 7/9/1975 Old Faithful 18:56:00 1:24:00 ~04:00 18:48 7/9/1975 Old Faithful 20:12:00 1:16:00 03:50 7/9/1975 Old Faithful 21:17:00 1:04:00 04:01 21:22 7/9/1975 Old Faithful 22:35:46 1:19:00 01:59 22:29 7/9/1975 Old Faithful 23:24:57 0:49:00 04:26 7/9/1975 Artemisia 19:16:00 7/9/1975 Beehive 19:23:00 7/9/1975 Castle 3:00:00 ie 7/9/1975 Castle 6:12:00 7/9/1975 Castle 15:40:00 ie 7/9/1975 Daisy ?5:14:00 ie 7/9/1975 Daisy 8:58:00 7/9/1975 Daisy 19:51:00 7/9/1975 Depression 20:30:00 ie 7/9/1975 Grand 12:07:00 2B 7/9/1975 Grand 19:12:00 2B 7/9/1975 Great Fountain 13:32:00 7/9/1975 Great Fountain 22:05:00 7/9/1975 Lion 6:40:00 ie 7/9/1975 Lion 9:09:00 7/9/1975 Lion 11:20:00 7/9/1975 Lion 15:11:00 7/9/1975 Riverside ~14:00:00 VR 7/9/1975 Riverside 19:21:00 7/9/1975 Spectacle 3:20:00 7/9/1975 Spectacle 13:38:00 7/10/1975 Old Faithful 0:49:44 1:25:00 01:47 7/10/1975 Old Faithful 1:38:53 0:49:00 04:01 7/10/1975 Old Faithful 2:59:09 1:20:00 04:19 7/10/1975 Old Faithful 4:13:42 1:14:00 04:19 7/10/1975 Old Faithful 5:32:09 1:18:00 01:53 7/10/1975 Old Faithful 6:14:45 0:43:00 0:4:24+ 7/10/1975 Old Faithful 7:40:14 1:26:00 02:13 7/10/1975 Old Faithful 8:24:00 0:44:00 04:23 8:32 7/10/1975 Old Faithful 9:42:00 1:18:00 02:15 9:40 7/10/1975 Old Faithful 10:32:00 0:50:00 04:59 10:30 7/10/1975 Old Faithful 11:55:00 0:58:00 02:03 11:47 7/10/1975 Old Faithful 12:39:00 0:55:00 03:45 12:46 7/10/1975 Old Faithful 13:59:00 0:47:00 01:40 13:52 7/10/1975 Old Faithful 14:45:00 0:46:00 03:00 14:40 7/10/1975 Old Faithful 15:59:00 1:14:00 04:11 15:56 7/10/1975 Old Faithful 17:09:00 1:10:00 02:12 17:12 7/10/1975 Old Faithful 17:56:00 0:47:00 04:56 18:01 7/10/1975 Old Faithful 19:11:00 0:50:00 02:02 19:11 7/10/1975 Old Faithful 20:00:00 0:49:00 04:29 20:01 7/10/1975 Old Faithful 21:22:00 1:22:00 01:56 21:15 7/10/1975 Old Faithful 22:14:42 0:52:00 04:45 22:12 7/10/1975 Old Faithful 23:41:40 1:27:00 03:24 7/10/1975 Beehive's Indicator 8:49:00 7/10/1975 Castle ~2:00:00 7/10/1975 Castle 11:45:00 7/10/1975 Castle 21:13:00 ie 7/10/1975 Daisy 6:51:00 7/10/1975 Daisy 8:08:00 7/10/1975 Daisy 9:24:00 7/10/1975 Daisy 13:07:00 7/10/1975 Daisy 15:29:00 7/10/1975 Daisy 20:25:00 7/10/1975 Giantess 1:25:08 ie peak stm died gradually 7/10/1975 Giantess 2:09:00 "stm,oscillations ~ea.sec. " 7/10/1975 Giantess 2:21:00 "strg spray,choppy sound" 7/10/1975 Giantess 2:29:00 "~1-2m blast,water+steam" 7/10/1975 Giantess 2:29:00 sound louder till 2:33 7/10/1975 Giantess 5:33:00 water burst 7/10/1975 Giantess 6:36:00 7/10/1975 Giantess 6:51:00 7/10/1975 Giantess 7:15:00 7/10/1975 Giantess 7:39:00 7/10/1975 Giantess 7:47:00 7/10/1975 Giantess 8:12:00 7/10/1975 Giantess 8:40:00 7/10/1975 Giantess 9:02:00 7/10/1975 Giantess 9:14:00 7/10/1975 Giantess 9:45:00 7/10/1975 Giantess 10:18:00 7/10/1975 Giantess 10:47:00 7/10/1975 Giantess 11:22:00 7/10/1975 Giantess 11:56:00 7/10/1975 Giantess 12:22:00 7/10/1975 Giantess 13:03:00 7/10/1975 Giantess 13:32:00 7/10/1975 Giantess 14:43:00 7/10/1975 Giantess 15:21:00 7/10/1975 Giantess 17:16:00 7/10/1975 Giantess 17:43:00 7/10/1975 Giantess 18:27:00 7/10/1975 Giantess 18:56:00 7/10/1975 Giantess 19:12:00 7/10/1975 Giantess 19:55:00 7/10/1975 Giantess 20:29:30 7/10/1975 Giantess 22:11:57 7/10/1975 Grand 11:32:00 7/10/1975 Grand 18:38:00 7/10/1975 Great Fountain 16:02:00 ie 7/10/1975 Great Fountain 18:41:00 7/10/1975 Grotto Fountain 16:40:00 7/10/1975 Pink Cone 9:40:00 ie 7/10/1975 Riverside 13:15:00 VR 7/10/1975 Vault 2:10:00 "down 17""" 7/10/1975 Vault 8:51:00 7/11/1975 Old Faithful 0:44:29 1:03:00 01:51 7/11/1975 Old Faithful 1:33:07 0:49:00 04:14 7/11/1975 Old Faithful 2:50:20 1:17:00 "long, infra red" 7/11/1975 Old Faithful 4:16:13 1:26:00 03:58 7/11/1975 Old Faithful 5:25:47 1:10:00 01:56 7/11/1975 Old Faithful 6:15:08 0:49:00 04:38 7/11/1975 Old Faithful 7:28:59 1:14:00 03:57 7/11/1975 Old Faithful 8:40:00 1:12:00 03:52 8:40 7/11/1975 Old Faithful 9:46:00 1:06:00 04:38 9:50 7/11/1975 Old Faithful 10:56:00 1:10:00 04:03 11:02 7/11/1975 Old Faithful 12:05:00 1:09:00 04:11 12:08 7/11/1975 Old Faithful 13:19:00 1:14:00 02:20 13:17 7/11/1975 Old Faithful 14:05:00 0:46:00 04:59 14:11 7/11/1975 Old Faithful 15:22:00 1:17:00 01:50 15:20 7/11/1975 Old Faithful 16:08:00 0:46:00 04:13 16:12 7/11/1975 Old Faithful 17:21:00 1:13:00 02:13 17:22 7/11/1975 Old Faithful 18:22:00 1:00:00 04:38 18:13 7/11/1975 Old Faithful 19:36:00 1:14:00 04:08 19:36 7/11/1975 Old Faithful 20:51:00 1:16:00 03:51 20:48 7/11/1975 Old Faithful 22:03:15 1:12:00 04:27 21:03 7/11/1975 Old Faithful 23:11:10 1:08:00 02:04 7/11/1975 Old Faithful 23:56:40 0:46:00 04:42 7/11/1975 Atomizer 3:40:00 ie steam phase eruption 7/11/1975 Beehive 1:25:58 ie d=4:21+ 7/11/1975 Beehive's Indicator 7:45:00 ie 7/11/1975 Beehive's Indicator 11:50:00 ie 7/11/1975 Beehive's Indicator 15:00:00 ie 7/11/1975 Beehive's Indicator 18:30:00 ie 7/11/1975 Castle 7:15:00 7/11/1975 Castle 17:01:00 7/11/1975 Daisy 10:01:00 7/11/1975 Daisy 16:10:00 7/11/1975 Daisy 18:16:00 7/11/1975 Daisy 21:15:00 I=2h59m 7/11/1975 Daisy 22:31:00 7/11/1975 Daisy 23:59:00 7/11/1975 Giantess 7:52:00 "2-3pfs,no wtr,d~1-2m,ea" 7/11/1975 Giantess 8:45:00 1/2hr 7/11/1975 Giantess 9:50:00 7/11/1975 Giantess 10:05:00 end of water 7/11/1975 Giantess 12:00:00 "occ.stm.pf, lasting few s." 7/11/1975 Grand 12:32:00 7/11/1975 Grand 17:20:00 7/11/1975 Great Fountain 8:51:00 7/11/1975 Grotto Fountain 5:58:00 7/11/1975 Oblong 15:57:00 ie 7/11/1975 Riverside 17:28:00 7/11/1975 Riverside 23:19:00 7/11/1975 Spectacle 19:43:00 7/11/1975 Spectacle 21:23:00 7/11/1975 Splendid 15:10:00 7/11/1975 Splendid 21:14:00 7/12/1975 Old Faithful 1:10:45 1:14:00 03:30 7/12/1975 Old Faithful 2:16:08 1:05:00 04:10 7/12/1975 Old Faithful 3:29:00 1:13:00 "long, infra red" 7/12/1975 Old Faithful 4:40:42 1:12:00 04:18 7/12/1975 Old Faithful 5:55:21 1:15:00 03:56 7/12/1975 Old Faithful 7:11:14 1:16:00 04:27 7/12/1975 Old Faithful 8:27:00 1:11:00 03:53 8:26 7/12/1975 Old Faithful 9:33:00 1:15:00 03:52 9:38 7/12/1975 Old Faithful 10:48:00 1:15:00 04:06 10:43 7/12/1975 Old Faithful 11:57:00 1:09:00 03:30 12:00 7/12/1975 Old Faithful 13:04:00 1:07:00 04:40 13:07 7/12/1975 Old Faithful 14:17:00 1:13:00 03:52 14:20 7/12/1975 Old Faithful 15:28:00 1:11:00 04:08 15:27 7/12/1975 Old Faithful 16:38:00 1:10:00 03:50 16:40 7/12/1975 Old Faithful 17:50:00 1:12:00 03:49 17:48 7/12/1975 Old Faithful 18:56:00 1:06:00 04:04 7/12/1975 Old Faithful 20:10:00 1:15:00 04:00 21:22 7/12/1975 Old Faithful 21:20:00 1:10:00 04:13 7/12/1975 Old Faithful 22:32:30 1:12:00 02:17 22:35 7/12/1975 Old Faithful 23:21:46 0:49:00 04:42 7/12/1975 Artemisia 8:28:00 7/12/1975 Artemisia 8:28:00 7/12/1975 Beehive 5:46:13 d=4:24 7/12/1975 Beehive's Indicator 10:58:00 ie 7/12/1975 Beehive's Indicator 16:09:00 ie 7/12/1975 Castle 12:04:00 ie 7/12/1975 Castle 21:33:00 7/12/1975 Daisy 8:29:00 7/12/1975 Daisy 11:23:00 7/12/1975 Daisy 12:48:00 7/12/1975 Daisy 15:27:00 7/12/1975 Daisy 17:45:00 7/12/1975 Daisy 19:30:00 ie 7/12/1975 Depression 12:06:00 7/12/1975 Depression 17:20:00 7/12/1975 Dome 17:03:00 7/12/1975 Dome 19:23:00 ie 7/12/1975 Grand 8:43:00 7/12/1975 Grand 16:16:00 3B 7/12/1975 Great Fountain 0:24:00 7/12/1975 Great Fountain 8:50:00 ie 7/12/1975 Great Fountain 16:34:00 VR 7/12/1975 Green Spring 10:45:00 ie 7/12/1975 Mortar 16:05:00 ie 7/12/1975 North Goggles 17:35:00 7/12/1975 Oblong 13:18:00 7/12/1975 Penta 17:40:00 ie 7/12/1975 Riverside 11:17:00 7/12/1975 Riverside 16:00:00 ie 7/12/1975 Round 8:15:00 2nd steam phase 7/12/1975 Round 10:06:00 7/12/1975 Spiteful 8:35:00 7/12/1975 Spiteful 17:50:00 "active,splashes to 7'" 7/12/1975 Splendid 21:00:00 ie 7/13/1975 Old Faithful 0:47:38 1:26:00 01:46 7/13/1975 Old Faithful 1:36:21 0:49:00 05:00 7/13/1975 Old Faithful 2:48:54 1:13:00 infra red 7/13/1975 Old Faithful 3:41:40 0:53:00 04:19 7/13/1975 Old Faithful 4:57:38 1:16:00 01:57 7/13/1975 Old Faithful 5:51:25 0:54:00 04:50 7/13/1975 Old Faithful 7:06:56 1:16:00 03:59 7/13/1975 Old Faithful 8:23:00 1:12:00 04:00 8:18 7/13/1975 Old Faithful 9:42:00 1:15:00 04:15 9:36 7/13/1975 Old Faithful 10:49:00 1:12:00 02:00 10:55 7/13/1975 Old Faithful 11:40:00 0:50:00 04:00 11:40 7/13/1975 Old Faithful 12:53:00 1:13:00 03:36 12:52 7/13/1975 Old Faithful 14:06:00 1:13:00 03:30 14:03 7/13/1975 Old Faithful 15:20:00 1:14:00 03:51 7/13/1975 Old Faithful 16:40:00 1:20:00 04:38 16:04 7/13/1975 Old Faithful 17:47:00 1:07:00 04:22 17:56 7/13/1975 Old Faithful 19:03:00 1:16:00 03:37 7/13/1975 Old Faithful 20:16:44 1:13:00 01:54 20:10 7/13/1975 Old Faithful 21:03:40 0:47:00 05:04 21:06 7/13/1975 Old Faithful 22:19:35 1:16:00 03:25 7/13/1975 Old Faithful 23:24:54 1:05:00 03:37 7/13/1975 Artemisia 16:15:00 "minor,3stm expl,then boil" 7/13/1975 Artemisia 16:15:00 "to2'-10m,pooldrop6"",wtr dr" 7/13/1975 Artemisia 16:15:00 "fm ctchpls,pool dn4"">5m" 7/13/1975 Beehive 0:32:37 7/13/1975 Beehive 17:13:00 7/13/1975 Castle 16:13:00 ie 7/13/1975 Daisy 8:49:00 7/13/1975 Daisy 10:44:00 7/13/1975 Daisy 12:26:00 7/13/1975 Daisy 13:51:00 7/13/1975 Daisy 15:13:00 VR 7/13/1975 Dome active 7/13/1975 Grand 16:15:00 7/13/1975 Great Fountain 12:17:00 VR 7/13/1975 Great Fountain 20:02:00 7/13/1975 Grotto Fountain 20:25:00 ie 7/13/1975 Lion 9:55:00 7/13/1975 Lion 11:36:00 7/13/1975 Lion 13:55:00 7/13/1975 Lion 16:35:00 nervous spell 7/13/1975 Lion 17:11:00 7/13/1975 Lion 18:40:00 nervous spell 7/13/1975 Lion 19:15:00 nervous spell 7/13/1975 North Goggles 21:19:00 7/13/1975 Oblong 16:29:00 7/13/1975 Riverside 4:45:00 7/13/1975 Riverside 10:15:00 VR 7/13/1975 Riverside 16:00:00 7/13/1975 Riverside 21:34:00? 7/13/1975 Round 20:27:00 7/13/1975 Silex 14:55:00 erupt.3-4'const.end15:35 7/13/1975 Silex 16:54:00 7/13/1975 Silex 21:27:00 7/14/1975 Old Faithful 0:29:35 1:05:00 04:06 7/14/1975 Old Faithful 1:50:41 1:21:00 04:07 7/14/1975 Old Faithful 3:06:28 1:16:00 04:05 7/14/1975 Old Faithful 4:12:49 1:06:00 01:53 7/14/1975 Old Faithful 5:05:54 0:53:00 05:09 7/14/1975 Old Faithful 6:21:36 1:16:00 02:12 7/14/1975 Old Faithful 7:12:51 0:51:00 04:16-04:50 7/14/1975 Old Faithful 8:26:00 1:14:00 03:10 8:28 7/14/1975 Old Faithful 9:40:00 1:26:00 03:28 steam 9:38 7/14/1975 Old Faithful 10:50:00 1:10:00 04:19 10:50 7/14/1975 Old Faithful 11:58:00 1:08:00 02:31 12:06 7/14/1975 Old Faithful 12:57:00 0:59:00 04:54 12:49 7/14/1975 Old Faithful 14:15:00 1:18:00 03:55 14:13 7/14/1975 Old Faithful 15:19:00 1:14:00 03:59 7/14/1975 Old Faithful 16:26:00 1:07:00 03:10 16:31 7/14/1975 Old Faithful 17:22:00 0:56:00 04:27 17:34 7/14/1975 Old Faithful 18:42:00 1:20:00 02:11 18:37 7/14/1975 Old Faithful 19:35:00 0:53:00 04:25 19:32 7/14/1975 Old Faithful 20:59:00 1:14:00 02:58 7/14/1975 Old Faithful 21:40:52 0:41:00 04:39 7/14/1975 Old Faithful 23:05:47 1:25:00 03:25 7/14/1975 Atomizer 15:35:00 7/14/1975 Beehive 6:28:12 d=4:03 7/14/1975 Beehive's Indicator 6:06:00 ie 7/14/1975 Castle 2:40:00 7/14/1975 Castle 12:03:00 7/14/1975 Cliff 10:25:00 7/14/1975 Daisy 0:25:00 7/14/1975 Daisy 7:54:00 7/14/1975 Daisy 9:10:00 d=3:40 7/14/1975 Daisy 10:23:00 d=3:42 7/14/1975 Daisy 11:29:00 7/14/1975 Daisy 12:44:00 7/14/1975 Daisy 13:58:00 7/14/1975 Daisy 15:08:00 7/14/1975 Dome 9:03:00 7/14/1975 Dome 10:28:00 7/14/1975 Grand 0:10:00 7/14/1975 Grand 7:32:00 2B 7/14/1975 Grand 14:44:00 3B 7/14/1975 Great Fountain 14:30:00 VR 7/14/1975 Green Spring 10:10:00 7/14/1975 Lion 8:58:00 7/14/1975 Lion 10:37:00 "d=2m24,29" 7/14/1975 Lion 11:58:00 7/14/1975 Lion 13:42:00 7/14/1975 Oblong 9:58:00 7/14/1975 Oblong 10:00:00 VR 7/14/1975 Riverside 8:24:00 7/14/1975 Riverside 14:20:00 7/14/1975 Round 10:41:00 7/14/1975 Spectacle 9:29:00 7/14/1975 Spectacle 20:05:00 7/14/1975 Spiteful 8:08:00 7/14/1975 Splendid 20:05:00 VR d~8m 7/15/1975 Old Faithful 0:18:32 1:13:00 01:56 7/15/1975 Old Faithful 1:11:43 0:53:00 04:40 7/15/1975 Old Faithful 2:28:58 1:17:00 01:55 7/15/1975 Old Faithful 3:16:12 0:47:00 04:47 7/15/1975 Old Faithful 4:37:08 1:21:00 04:02 7/15/1975 Old Faithful 5:44:48 1:08:00 01:50 7/15/1975 Old Faithful 6:29:45 0:45:00 04:36 7/15/1975 Old Faithful 7:48:30 1:19:00 01:47 7/15/1975 Old Faithful 8:37:00 0:49:00 04:19 8:36 7/15/1975 Old Faithful 9:48:00 1:11:00 02:08 9:50 7/15/1975 Old Faithful 10:36:00 0:48:00 04:44 10:40 7/15/1975 Old Faithful 12:00:17 1:24:00 01:54 11:52 7/15/1975 Old Faithful 12:56:17 0:56:00 04:51 12:50 7/15/1975 Old Faithful 14:08:09 1:01:00 04:22 14:12 7/15/1975 Old Faithful 15:17:26 1:09:00 04:50 15:24 7/15/1975 Old Faithful 16:29:00 1:12:00 03:59 16:32 7/15/1975 Old Faithful 17:46:00 1:07:00 04:34 17:41 7/15/1975 Old Faithful 18:53:00 1:07:00 02:57 19:00 7/15/1975 Old Faithful 20:03:00 1:10:00 04:14 20:06 7/15/1975 Old Faithful 21:20:00 1:27:00 04:14 21:16 7/15/1975 Old Faithful 22:26:44 1:07:00 03:45 7/15/1975 Old Faithful 23:38:48 1:12:00 04:02 7/15/1975 Artemisia 21:32:00 7/15/1975 Atomizer 21:15:00 minor 7/15/1975 Beehive's Indicator 10:03:00 7/15/1975 Castle 16:10:00 7/15/1975 Daisy 10:04:00 7/15/1975 Daisy 11:16:00 7/15/1975 Daisy 12:32:00 7/15/1975 Daisy 13:51:00 7/15/1975 Daisy 16:39:00 7/15/1975 Daisy 20:26:00 7/15/1975 Daisy 22:07:00 7/15/1975 Grand 13:05:00 3B 7/15/1975 Grand 22:27:00 4B 7/15/1975 Great Fountain 20:50:00 ie 7/15/1975 Great Fountain 21:21:00 ie 7/15/1975 Lion 8:21:00 ie 7/15/1975 Lion 9:54:00 7/15/1975 Lion 11:54:00 nervous spell 7/15/1975 Lion 14:24:00 7/15/1975 Lion 16:34:00 7/15/1975 Lion 20:01:00 7/15/1975 Oblong 8:31:00 7/15/1975 Oblong 22:20:00 7/15/1975 Rift 17:50:00 end 22:38 7/15/1975 Riverside ~12:40:00 VR 7/15/1975 Riverside 18:25:00 VR 7/15/1975 Round 15:50:00 7/15/1975 Spectacle 10:17:00 7/15/1975 Spectacle 12:07:00 7/15/1975 Spectacle 18:25:00 7/15/1975 Splendid 21:17:00 7/16/1975 Old Faithful 0:55:46 1:17:00 04:07 7/16/1975 Old Faithful 2:08:33 1:13:00 02:01 7/16/1975 Old Faithful 3:02:24 0:54:00 04:37 7/16/1975 Old Faithful 4:19:35 1:17:00 03:49 7/16/1975 Old Faithful 5:23:54 1:04:00 04:37 7/16/1975 Old Faithful 6:33:24 1:10:00 03:45 7/16/1975 Old Faithful 7:49:48 1:16:00 03:53 7/16/1975 Old Faithful 8:55:00 1:06:00 04:21 9:02 7/16/1975 Old Faithful 10:17:00 1:22:00 03:58 10:08 7/16/1975 Old Faithful 11:33:00 1:16:00 03:58 11:29 7/16/1975 Old Faithful 12:44:00 1:11:00 04:09 12:45 7/16/1975 Old Faithful 14:03:00 1:19:00 04:28 13:56 7/16/1975 Old Faithful 15:19:00 1:16:00 01:50 15:18 7/16/1975 Old Faithful 16:00:00 0:40:00 05:15 16:10 7/16/1975 Old Faithful 17:17:00 1:17:00 02:00 17:15 7/16/1975 Old Faithful 18:11:00 0:58:00 04:30 18:10 7/16/1975 Old Faithful 19:33:00 1:23:00 04:14 19:24 7/16/1975 Old Faithful 20:46:00 1:13:00 01:46 20:48 7/16/1975 Old Faithful 21:30:57 0:44:00 04:49 21:33 7/16/1975 Old Faithful 22:47:50 1:17:00 02:06 7/16/1975 Old Faithful 23:34:58 0:47:00 04:38 7/16/1975 Artemisia ~8:50:00 7/16/1975 Beehive's Indicator 13:55:00 ie 7/16/1975 Castle 1:28:00 7/16/1975 Castle 10:45:00 7/16/1975 Castle 20:45:00 ie 7/16/1975 Daisy 1:13:00 7/16/1975 Daisy 9:44:00 7/16/1975 Daisy 11:17:00 7/16/1975 Daisy 12:49:00 7/16/1975 Daisy 14:18:00 7/16/1975 Daisy 15:38:00 7/16/1975 Daisy 20:09:00 7/16/1975 Daisy 21:30:00 7/16/1975 Grand 15:22:00 3B 7/16/1975 Grand 22:44:00 ie 7/16/1975 Great Fountain 21:05:00 VR 7/16/1975 Little Squirt 10:00:00 active 7/16/1975 Riverside 11:48:00 7/16/1975 Riverside 17:41:00 VR 7/16/1975 Spiteful 11:57:00 7/16/1975 West Triplet 22:50:00 ie 7/17/1975 Old Faithful 1:03:38 1:29:00 01:47 7/17/1975 Old Faithful 1:51:34 0:48:00 04:47 7/17/1975 Old Faithful 3:03:58 1:12:00 04:00 7/17/1975 Old Faithful 4:13:40 1:10:00 03:50 7/17/1975 Old Faithful 5:19:08 1:05:00 04:21 7/17/1975 Old Faithful 6:26:23 1:07:00 04:14 7/17/1975 Old Faithful 7:35:35 1:09:00 04:39 7/17/1975 Old Faithful 8:45:00 1:10:00 03:45 8:50 7/17/1975 Old Faithful 9:54:00 1:09:00 04:06 9:55 7/17/1975 Old Faithful 11:14:00 1:20:00 04:03 11:06 7/17/1975 Old Faithful 12:21:00 1:07:00 02:10 12:26 7/17/1975 Old Faithful 13:09:00 0:48:00 05:00 13:13 7/17/1975 Old Faithful 14:31:00 1:21:00 02:00 14:24 7/17/1975 Old Faithful 15:24:00 0:59:00 03:15 15:22 7/17/1975 Old Faithful 16:52:00 1:28:00 01:54 16:42 7/17/1975 Old Faithful 17:49:00 0:59:00 04:45 17:40 7/17/1975 Old Faithful 19:07:00 1:20:00 04:00 19:02 7/17/1975 Old Faithful 20:12:00 1:05:00 04:03 20:22 7/17/1975 Old Faithful 21:34:00 1:21:00 03:45 21:24 7/17/1975 Old Faithful 22:33:51 1:01:00 04:07 22:56 7/17/1975 Old Faithful 23:49:19 1:15:00 02:32 7/17/1975 Beehive 12:21:00 7/17/1975 Castle 6:00:00 7/17/1975 Castle 15:25:00 7/17/1975 Daisy 14:14:00 7/17/1975 Daisy 18:13:00 7/17/1975 Daisy 19:40:00 7/17/1975 East Triplet spurted prior to eruption 7/17/1975 Grand 6:02:00 3B 7/17/1975 Grand 13:52:00 7/17/1975 Great Fountain 13:58:00 7/17/1975 Lion 5:44:00 7/17/1975 Old Tardy between 19:30/20:15 7/17/1975 Riverside 10:40:00 d=17m 7/17/1975 Riverside 16:50:00 VR 7/17/1975 Round 20:19:00 7/17/1975 West Triplet after Grand erupted 7/18/1975 Old Faithful 0:42:19 0:53:00 04:23 7/18/1975 Old Faithful 1:53:59 1:12:00 02:39 7/18/1975 Old Faithful 2:48:18 0:54:00 04:35 7/18/1975 Old Faithful 4:16:08 1:28:00 01:53 7/18/1975 Old Faithful 4:57:10 0:41:00 04:24+ 7/18/1975 Old Faithful 6:09:29 1:12:00 02:13 7/18/1975 Old Faithful 7:08:20 0:59:00 "long, infra red" 7/18/1975 Old Faithful 8:19:00 1:09:00 01:49 7/18/1975 Old Faithful 9:09:00 1:10:00 04:34 9:06 7/18/1975 Old Faithful 10:30:00 1:19:00 01:51 10:24 7/18/1975 Old Faithful 11:23:00 0:53:00 04:30 11:20 7/18/1975 Old Faithful 12:52:00 1:29:00 01:53 12:42 7/18/1975 Old Faithful 13:36:00 0:44:00 04:35 7/18/1975 Old Faithful 14:52:00 1:16:00 02:25 14:50 7/18/1975 Old Faithful 15:36:00 0:44:00 04:16 15:44 7/18/1975 Old Faithful 17:03:00 1:27:00 02:03 16:49 7/18/1975 Old Faithful 17:52:00 0:49:00 04:08 17:52 7/18/1975 Old Faithful 19:13:00 1:21:00 03:47 19:05 7/18/1975 Old Faithful 20:22:00 1:09:00 04:04 20:23 7/18/1975 Old Faithful 21:36:44 1:14:00 03:44 21:34 7/18/1975 Old Faithful 22:50:54 1:14:00 02:38 7/18/1975 Old Faithful 23:38:29 0:48:00 04:50 7/18/1975 Beehive 3:56:00 ie end~3:59:04 7/18/1975 Beehive's Indicator 10:25:00 ie 7/18/1975 Beehive's Indicator 18:55:00 ie 7/18/1975 Castle 10:15:00 ie 7/18/1975 Castle 19:35:00 7/18/1975 Daisy 9:30:00 7/18/1975 Daisy 12:05:00 7/18/1975 Daisy 14:43:00 VR 7/18/1975 Daisy 18:37:00 ie 7/18/1975 Daisy ?19:13:00 7/18/1975 Daisy 20:36:00 7/18/1975 Grand 14:35:00 7/18/1975 Grand 22:39:00 7/18/1975 Great Fountain 8:15:00 7/18/1975 Great Fountain 16:56:00 7/18/1975 Oblong 19:33:00 finished 7/18/1975 Riverside 3:45:00 VR 7/18/1975 Round 11:14:00 7/18/1975 Spectacle 8:47:00 7/18/1975 Splendid 19:13:00 7/19/1975 Old Faithful 0:56:15 1:18:00 02:21 7/19/1975 Old Faithful 1:44:11 0:48:00 04:12 7/19/1975 Old Faithful 2:58:30 1:14:00 02:31 7/19/1975 Old Faithful 3:56:44 0:58:00 04:28 7/19/1975 Old Faithful 5:11:20 1:15:00 02:14 7/19/1975 Old Faithful 6:01:06 0:50:00 04:40 7/19/1975 Old Faithful 7:21:40 1:21:00 01:42 7/19/1975 Old Faithful 8:03:16 0:42:00 04:58 8:08 7/19/1975 Old Faithful 9:23:00 1:20:00 03:22 9:18 7/19/1975 Old Faithful 10:29:00 1:07:00 03:15 10:33 7/19/1975 Old Faithful 10:43:00 1:12:00 03:45 11:40 7/19/1975 Old Faithful 12:49:00 1:06:00 04:39 12:56 7/19/1975 Old Faithful 14:05:00 1:11:00 01:46 14:04 7/19/1975 Old Faithful 14:56:00 0:51:00 04:30 14:54 7/19/1975 Old Faithful 16:08:00 1:12:00 01:50 16:12 7/19/1975 Old Faithful 16:59:00 0:51:00 04:30 16:55 7/19/1975 Old Faithful 18:26:00 1:27:00 01:50 18:16 7/19/1975 Old Faithful 19:14:00 0:47:00 04:29 19:24 7/19/1975 Old Faithful 20:31:00 1:18:00 03:58 20:29 7/19/1975 Old Faithful 21:43:11 1:11:00 04:22 21:43 7/19/1975 Old Faithful 23:03:07 1:20:00 03:53 7/19/1975 Atomizer 16:20:00 7/19/1975 Beehive 22:09:00 7/19/1975 Beehive's Indicator 6:00:00 7/19/1975 Beehive's Indicator 9:38:00 ie 7/19/1975 Castle 6:04:00 7/19/1975 Castle 15:42:00 7/19/1975 Daisy 6:15:00 7/19/1975 Daisy 7:49:00 7/19/1975 Daisy 9:22:00 7/19/1975 Daisy 12:04:00 7/19/1975 Daisy 13:31:00 7/19/1975 Daisy 14:59:00 7/19/1975 Daisy 16:15:00 7/19/1975 Daisy 17:30:00 7/19/1975 Daisy 20:08:00 7/19/1975 Depression 12:29:00 7/19/1975 Depression 19:48:00 7/19/1975 Grand 8:28:00 7/19/1975 Grand 16:25:00 7/19/1975 Great Fountain 9:20:00 7/19/1975 Great Fountain 18:26:00 7/19/1975 Lion 9:41:00 7/19/1975 Lion 11:08:00 7/19/1975 Lion 14:38:00 7/19/1975 North Goggles 9:17:00 7/19/1975 Oblong 20:50:00 7/19/1975 Riverside 8:40:00 7/19/1975 Riverside 14:41:00 7/19/1975 Riverside 20:08:00 7/19/1975 Round 20:06:00 7/19/1975 White Dome 9:14:00 7/19/1975 White Dome 10:23:00 7/20/1975 Old Faithful 0:16:51 1:14:00 02:02 7/20/1975 Old Faithful 1:04:28 0:48:00 04:45 7/20/1975 Old Faithful 2:19:23 1:15:00 01:54 7/20/1975 Old Faithful 3:16:29 0:57:00 04:44 7/20/1975 Old Faithful 4:38:05 1:22:00 03:58 7/20/1975 Old Faithful 5:54:04 1:16:00 02:00 7/20/1975 Old Faithful 6:39:50 0:46:00 04:35 7/20/1975 Old Faithful 7:56:00 0:50:00 01:58 7/20/1975 Old Faithful 8:59:00 1:03:00 03:25 8:46 7/20/1975 Old Faithful 10:14:00 1:14:00 02:00 10:10 7/20/1975 Old Faithful 11:59:00 1:16:00 04:53 11:04 7/20/1975 Old Faithful 12:22:00 0:52:00 02:20 12:16 7/20/1975 Old Faithful 13:16:00 0:54:00 04:59 13:14 7/20/1975 Old Faithful 14:41:00 1:25:00 02:05 14:31 7/20/1975 Old Faithful 15:24:00 0:43:00 05:01 15:31 7/20/1975 Old Faithful 16:41:00 1:17:00 04:19 16:39 7/20/1975 Old Faithful 17:44:00 1:03:00 04:28 17:54 7/20/1975 Old Faithful 18:56:00 1:12:00 01:51 18:59 7/20/1975 Old Faithful 19:43:00 0:47:00 04:02-04:50 7/20/1975 Old Faithful 21:08:00 1:25:00 01:50 20:56 7/20/1975 Old Faithful 21:57:12 0:49:00 04:29 21:58 7/20/1975 Old Faithful 23:24:22 1:27:00 02:06 7/20/1975 Castle 1:08:00 7/20/1975 Castle 12:43:00 ie 7/20/1975 Daisy 9:05:00 7/20/1975 Daisy 10:19:00 7/20/1975 Daisy 11:33:00 7/20/1975 Daisy 12:47:00 7/20/1975 Daisy 16:32:00 7/20/1975 Daisy 17:54:00 7/20/1975 Daisy 20:32:00 7/20/1975 Fountain 8:54:00 7/20/1975 Fountain 19:35:00 7/20/1975 Grand 0:50:00 7/20/1975 Grand 8:36:00 7/20/1975 Grand 18:00:00 7/20/1975 Great Fountain 2:30:00 7/20/1975 Great Fountain 11:27:00 7/20/1975 Great Fountain 12:10:00 VR 7/20/1975 Great Fountain 21:20:00 7/20/1975 Grotto Fountain 12:37:00 7/20/1975 Oblong 11:31:00 7/20/1975 Pink Cone 20:05:00 7/20/1975 Riverside 8:12:00 7/20/1975 Riverside 13:40:00 7/20/1975 Riverside 19:35:00 7/20/1975 Round 12:09:00 steam 7/20/1975 Round 12:48:00 7/20/1975 Round 13:39:00 7/20/1975 White Dome 19:24:00 7/20/1975 White Dome 21:07:00 I=103 7/20/1975 White Dome 21:35:00 I=28 7/20/1975 Old Faithful 0:09:56 0:46:00 04:45 7/21/1975 Old Faithful 1:31:04 1:21:00 01:46 7/21/1975 Old Faithful 2:13:36 0:43:00 04:48 7/21/1975 Old Faithful 3:27:18 1:14:00 03:52 7/21/1975 Old Faithful 4:44:31 1:17:00 03:49 7/21/1975 Old Faithful 5:46:26 1:02:00 04:03 7/21/1975 Old Faithful 7:07:46 1:21:00 03:46 7/21/1975 Old Faithful 8:32:00 1:25:00 04:00 7/21/1975 Old Faithful 9:44:00 1:12:00 03:30 9:42 7/21/1975 Old Faithful 10:56:00 1:12:00 03:30 11:06 7/21/1975 Old Faithful 12:14:00 1:18:00 04:00 13:06 7/21/1975 Old Faithful 13:23:00 1:09:00 04:25 7/21/1975 Old Faithful 14:44:10 1:21:00 03:49 14:29:48 7/21/1975 Old Faithful 15:49:00 1:05:00 04:19 7/21/1975 Old Faithful 17:05:00 1:16:00 01:57 17:02 7/21/1975 Old Faithful 17:53:00 0:48:00 05:13 17:54 7/21/1975 Old Faithful 19:14:00 1:21:00 01:42 19:08 7/21/1975 Old Faithful 19:55:00 0:41:00 04:54 20:06 7/21/1975 Old Faithful 21:13:00 1:18:00 03:34 21:10 7/21/1975 Old Faithful 22:28:11 1:15:00 03:42 22:03 7/21/1975 Old Faithful 23:29:47 1:02:00 04:19 7/21/1975 Beehive 10:45:00 7/21/1975 Beehive's Indicator 6:50:00 7/21/1975 Beehive's Indicator 10:21:00 7/21/1975 Beehive's Indicator 20:54:00 ie 7/21/1975 Castle 10:32:00 7/21/1975 Castle 20:27:00 7/21/1975 Daisy ~8:11:00 VR 7/21/1975 Daisy 9:14:00 7/21/1975 Daisy 10:26:00 7/21/1975 Daisy 13:01:00 7/21/1975 Daisy 14:20:00 7/21/1975 Daisy 15:35:00 7/21/1975 Daisy 16:50:00 ie 7/21/1975 Grand 1:30:00 ie 3B 7/21/1975 Grand 10:05:00 7/21/1975 Grand 18:40:00 2B 7/21/1975 Great Fountain 5:55:00 ie 7/21/1975 Great Fountain 14:28:00 7/21/1975 Great Fountain 22:35:00 ie 7/21/1975 Lion 9:04:00 7/21/1975 Lion 11:02:00 7/21/1975 Lion 12:16:00 7/21/1975 Lion 14:00:00 7/21/1975 Lion 15:37:00 7/21/1975 Lion 17:31:00 7/21/1975 Lion 19:52:00 7/21/1975 North Goggles 19:53:00 7/21/1975 Rift 13:05:00 ie 7/21/1975 Riverside 7:13:00 7/21/1975 Riverside 12:47:00 VR 7/21/1975 Sawmill 14:46:00 7/22/1975 Old Faithful 0:47:48 1:18:00 03:39 7/22/1975 Old Faithful 1:54:38 1:07:00 04:06 7/22/1975 Old Faithful 3:05:07 1:11:00 03:45 7/22/1975 Old Faithful 4:09:59 1:05:00 04:02 7/22/1975 Old Faithful 5:21:12 1:11:00 04:06 7/22/1975 Old Faithful 6:29:39 1:08:00 04:11 7/22/1975 Old Faithful 7:36:56 1:07:00 04:04 7/22/1975 Old Faithful 8:47:00 1:11:00 03:35 8:48 7/22/1975 Old Faithful 9:49:00 1:02:00 04:40 9:57 7/22/1975 Old Faithful 11:08:00 1:19:00 02:03 11:04 7/22/1975 Old Faithful 11:59:00 0:40:00 03:57 11:58 7/22/1975 Old Faithful 13:07:00 1:18:00 03:31 13:02 7/22/1975 Old Faithful 14:15:00 1:08:00 04:09 14:17 7/22/1975 Old Faithful 15:27:00 1:12:00 04:12 15:26 7/22/1975 Old Faithful 16:35:00 1:08:00 01:57 16:40 7/22/1975 Old Faithful 17:21:00 0:44:00 05:12 17:26 7/22/1975 Old Faithful 18:41:00 1:20:00 02:03 18:36 7/22/1975 Old Faithful 19:34:00 0:53:00 04:42 19:31 7/22/1975 Old Faithful 20:49:00 1:16:00 01:47 20:50 7/22/1975 Old Faithful 21:43:35 0:54:00 04:35 7/22/1975 Old Faithful 22:57:08 1:14:00 03:47 7/22/1975 Beehive 0:40:00 7/22/1975 Beehive 16:17:25 7/22/1975 Castle 15:04:00 7/22/1975 Daisy 1:02:00 7/22/1975 Daisy 16:33:00 7/22/1975 Daisy 19:15:00 7/22/1975 Daisy 20:39:00 7/22/1975 Depression 12:32:00 7/22/1975 Depression 20:09:00 ie 7/22/1975 Grand 9:40:00 7/22/1975 Grand 17:14:00 4B 7/22/1975 Great Fountain 14:15:00 7/22/1975 Riverside 11:21:00 7/22/1975 Riverside 17:23:00 7/22/1975 Riverside 23:30:00 VR 7/22/1975 Round 22:46:00 7/22/1975 Spectacle 13:02:00 7/23/1975 Old Faithful 0:08:23 1:11:00 03:55 7/23/1975 Old Faithful 1:23:17 1:15:00 02:08 7/23/1975 Old Faithful 2:08:44 0:45:00 04:41 7/23/1975 Old Faithful 3:35:47 1:27:00 01:39 7/23/1975 Old Faithful 4:17:10 0:41:00 04:40 7/23/1975 Old Faithful 5:33:12 1:16:00 01:57 7/23/1975 Old Faithful 6:32:56 1:00:00 03:59 7/23/1975 Old Faithful 7:59:00 1:27:00 02:11 7/23/1975 Old Faithful 8:45:00 0:46:00 03:00 7/23/1975 Old Faithful 9:59:00 1:14:00 03:15 9:50 7/23/1975 Old Faithful 11:10:00 1:11:00 04:02 11:09 7/23/1975 Old Faithful 12:24:00 1:14:00 04:11 7/23/1975 Old Faithful 13:35:00 1:11:00 04:29 7/23/1975 Old Faithful 14:47:00 1:12:00 01:54 7/23/1975 Old Faithful 15:37:00 0:49:00 05:21 7/23/1975 Old Faithful 16:51:00 1:04:00 02:01 7/23/1975 Old Faithful 17:44:00 0:53:00 04:42 7/23/1975 Old Faithful 18:56:00 1:12:00 04:10 7/23/1975 Old Faithful 20:10:00 1:14:00 04:13 20:09 7/23/1975 Old Faithful 21:29:00 1:19:00 04:11 21:23 7/23/1975 Old Faithful 22:33:00 1:04:00 04:03 22:42 7/23/1975 Old Faithful 23:42:00 1:09:00 04:01 7/23/1975 Artemisia 18:05:00 7/23/1975 Aurum 13:43:00 7/23/1975 Beehive 3:31:38 7/23/1975 Beehive's Indicator 10:42:00 ie 7/23/1975 Beehive's Indicator 19:40:00 ie 7/23/1975 Castle 0:19:00 7/23/1975 Castle 9:36:00 7/23/1975 Castle 18:57:00 7/23/1975 Daisy 0:35:00 7/23/1975 Daisy 9:40:00 VR 7/23/1975 Daisy 10:50:00 7/23/1975 Daisy 15:48:00 7/23/1975 Depression 9:24:00 7/23/1975 Depression 16:16:00 7/23/1975 Grand 0:13:00 2B 7/23/1975 Grand 8:05:00 VR 4B 7/23/1975 Grand 16:14:00 4B 7/23/1975 Great Fountain 8:20:00 7/23/1975 Oblong 9:08:00 7/23/1975 Riverside 11:37:00 7/23/1975 Riverside 17:37:00 7/23/1975 Round 13:00:00 7/23/1975 Sawmill 9:44:00 7/23/1975 Spectacle 9:11:00 7/24/1975 Old Faithful 1:00:18 1:19:00 03:46 7/24/1975 Old Faithful 2:06:35 1:06:00 03:58 7/24/1975 Old Faithful 3:22:33 1:16:00 02:13 7/24/1975 Old Faithful 4:14:24 0:52:00 04:43 7/24/1975 Old Faithful 5:26:46 1:12:00 04:07 7/24/1975 Old Faithful 6:38:19 1:12:00 04:05 7/24/1975 Old Faithful 7:53:25 1:15:00 01:47 7/24/1975 Old Faithful 8:36:00 0:43:00 04:29 8:40 7/24/1975 Old Faithful 9:53:00 1:17:00 02:35 9:50 7/24/1975 Old Faithful 10:46:00 0:53:00 03:50 10:55 7/24/1975 Old Faithful 12:11:00 1:25:00 01:45 11:57 7/24/1975 Old Faithful 13:02:00 0:51:00 04:11 12:58 7/24/1975 Old Faithful 14:16:00 1:14:00 02:00 14:16 7/24/1975 Old Faithful 15:05:00 0:49:00 03:45 15:06 7/24/1975 Old Faithful 16:18:00 1:15:00 04:29 16:16 7/24/1975 Old Faithful 17:37:00 1:27:00 02:00 17:33 7/24/1975 Old Faithful 18:22:00 0:45:00 04:26 18:28 7/24/1975 Old Faithful 19:44:00 1:24:00 02:00 19:36 7/24/1975 Old Faithful 20:47:00 1:01:00 04:30 20:34 7/24/1975 Old Faithful 22:00:00 1:13:00 01:59 22:06 7/24/1975 Old Faithful 22:51:00 0:52:00 04:31 7/24/1975 Beehive 17:32:00 7/24/1975 Beehive's Indicator 17:28:00 7/24/1975 Castle 14:04:00 ie 7/24/1975 Daisy 9:51:00 7/24/1975 Daisy 13:50:00 7/24/1975 Daisy 16:20:00 7/24/1975 Daisy 17:40:00 7/24/1975 Daisy 18:55:00 7/24/1975 Daisy 20:15:00 7/24/1975 Grand 7:50:00 3B 7/24/1975 Grand 15:48:00 ie 7/24/1975 Grand 23:10:00 ie 7/24/1975 Great Fountain 14:40:00 VR 7/24/1975 Great Fountain 22:41:00 7/24/1975 Lion 7:14:00 ie 7/24/1975 Lion 10:14:00 7/24/1975 Lion 13:34:00 ie 7/24/1975 Lion 17:28:00 7/24/1975 Lioness 13:00:00 NO! 7/24/1975 Oblong 10:51:00 7/24/1975 Oblong 19:00:00 7/24/1975 Riverside 10:37:00 7/24/1975 Riverside 16:30:00 ie 7/24/1975 Round finished 19:28 7/24/1975 Splendid sometime during night 7/25/1975 Old Faithful 0:03:00 1:11:00 03:01 7/25/1975 Old Faithful 1:02:00 0:59:00 04:44 7/25/1975 Old Faithful 2:14:00 1:12:00 02:07 7/25/1975 Old Faithful 3:07:00 0:54:00 04:35 7/25/1975 Old Faithful 4:20:00 1:13:00 "long, infra red" 7/25/1975 Old Faithful 5:21:00 1:01:00 03:54 7/25/1975 Old Faithful 6:30:00 1:09:00 03:54 7/25/1975 Old Faithful 7:40:00 1:10:00 02:04 7/25/1975 Old Faithful 8:26:00 0:46:00 04:17 8:30 7/25/1975 Old Faithful 9:47:00 1:21:00 01:45 9:39 7/25/1975 Old Faithful 10:36:00 0:48:00 04:00 10:34 7/25/1975 Old Faithful 11:47:00 1:11:00 03:00 11:48 7/25/1975 Old Faithful 12:59:00 1:12:00 04:03 12:58 7/25/1975 Old Faithful 14:16:04 1:17:00 01:48 7/25/1975 Old Faithful 15:07:00 0:52:00 04:30 15:03 7/25/1975 Old Faithful 16:29:00 1:19:00 01:45 16:22 7/25/1975 Old Faithful 17:16:00 0:47:00 04:30 17:16 7/25/1975 Old Faithful 18:34:00 1:18:00 02:05 18:32 7/25/1975 Old Faithful 19:29:00 0:55:00 04:20 19:24 7/25/1975 Old Faithful 20:45:00 1:16:00 03:53 20:42 7/25/1975 Old Faithful 21:57:00 1:12:00 04:15 21:57 7/25/1975 Old Faithful 23:10:00 1:13:00 02:16 7/25/1975 Old Faithful 23:59:00 0:49:00 04:31 7/25/1975 Artemisia 21:21:00 7/25/1975 Beehive's Indicator 14:16:00 7/25/1975 Beehive's Indicator 20:30:00 ie 7/25/1975 Castle 0:57:00 7/25/1975 Castle 9:34:00 7/25/1975 Castle 19:18:00 7/25/1975 Daisy 6:55:00 VR 7/25/1975 Daisy 9:29:00 7/25/1975 Daisy 10:45:00 7/25/1975 Daisy 13:04:00 7/25/1975 Daisy 14:19:00 7/25/1975 Daisy 15:25:00 VR 7/25/1975 Daisy 19:15:00 7/25/1975 Depression 19:38:00 7/25/1975 Grand 6:49:00 VR 3B 7/25/1975 Grand 14:09:00 7/25/1975 Grand 21:30:00 VR 1B 7/25/1975 Great Fountain 7:47:00 7/25/1975 Great Fountain 15:12:00 7/25/1975 Great Fountain 23:28:00 7/25/1975 Lone Star 16:00:00 7/25/1975 Riverside 10:36:00 7/25/1975 Riverside 16:40:00 VR 7/26/1975 Old Faithful 1:17:00 1:18:00 03:56 7/26/1975 Old Faithful 2:30:00 1:13:00 03:55 7/26/1975 Old Faithful 3:45:00 1:15:00 "long, infra red" 7/26/1975 Old Faithful 4:55:00 1:10:00 03:58 7/26/1975 Old Faithful 6:14:00 1:19:00 04:12 7/26/1975 Old Faithful 7:37:00 1:13:00 01:42 7/26/1975 Old Faithful 8:29:00 0:52:00 05:09 7/26/1975 Old Faithful 9:42:00 1:12:00 01:45 9:45 7/26/1975 Old Faithful 10:37:00 0:55:00 05:08 10:30 7/26/1975 Old Faithful 11:56:00 1:19:00 04:23 11:52 7/26/1975 Old Faithful 13:02:00 1:06:00 04:19 13:08 7/26/1975 Old Faithful 14:13:00 1:11:00 04:16 7/26/1975 Old Faithful 15:25:00 1:00:00 03:30 7/26/1975 Old Faithful 16:40:00 1:15:00 04:05 16:38 7/26/1975 Old Faithful 17:51:00 1:11:00 04:30 17:52 7/26/1975 Old Faithful 19:03:00 1:12:00 04:08 19:06 7/26/1975 Old Faithful 20:11:00 1:08:00 04:28 20:16 7/26/1975 Old Faithful 21:23:00 1:12:00 04:00 21:26 7/26/1975 Old Faithful 22:45:00 1:22:00 04:18 7/26/1975 Old Faithful 23:58:00 1:13:00 01:49 7/26/1975 Beehive's Indicator 9:05:00 ie 7/26/1975 Castle 5:52:00 7/26/1975 Castle 15:13:00 VR 7/26/1975 Chinese Spring 16:10:00 "25-30',30-35s,soaped SM" 7/26/1975 Daisy 8:10:00 7/26/1975 Daisy 9:25:00 7/26/1975 Daisy 10:37:00 7/26/1975 Daisy 12:00:00 VR 7/26/1975 Daisy 14:07:00 7/26/1975 Daisy 15:24:00 7/26/1975 Daisy 16:40:00 7/26/1975 Daisy 20:20:00 7/26/1975 Daisy 21:30:00 7/26/1975 Depression 7:28:00 7/26/1975 Grand 5:23:00 7/26/1975 Grand 13:38:00 7/26/1975 Grand 20:52:00 4B 7/26/1975 Great Fountain 8:45:00 7/26/1975 Great Fountain 16:38:00 7/26/1975 Inverted 19:51:00 7/26/1975 Riverside 14:52:00 7/26/1975 Riverside 20:57:00 7/26/1975 Round 15:04:00 7/26/1975 Spectacle 7:27:00 7/26/1975 Spectacle 15:25:00 7/26/1975 Spiteful 20:30:00 ie 7/27/1975 Old Faithful 0:47:00 0:49:00 04:45 7/27/1975 Old Faithful 1:58:00 1:11:00 02:04 7/27/1975 Old Faithful 2:49:00 0:51:00 04:34 7/27/1975 Old Faithful 4:06:00 1:17:00 03:44 7/27/1975 Old Faithful 5:27:00 1:21:00 04:22 7/27/1975 Old Faithful 6:50:00 1:23:00 03:46 7/27/1975 Old Faithful 7:54:00 1:04:00 04:12 8:00 7/27/1975 Old Faithful 9:07:00 1:13:00 03:30 9:06 7/27/1975 Old Faithful 10:21:00 1:14:00 03:15 10:18 7/27/1975 Old Faithful 10:29:00 1:08:00 05:30 11:34 7/27/1975 Old Faithful 12:34:00 1:05:00 04:08 12:46 7/27/1975 Old Faithful 13:45:00 1:11:00 03:45 13:46 7/27/1975 Old Faithful 14:59:00 1:04:00 01:45 14:56 7/27/1975 Old Faithful 15:45:00 0:46:00 04:59 15:46 7/27/1975 Old Faithful 17:52:00 0:51:00 04:27 17:01 7/27/1975 Old Faithful 19:09:00 1:17:00 19:04 7/27/1975 Old Faithful 20:17:00 1:08:00 04:00 20:22 7/27/1975 Old Faithful 21:39:00 1:22:00 03:46 21:28 7/27/1975 Old Faithful 22:46:00 1:08:00 02:01 7/27/1975 Old Faithful 23:35:00 0:48:00 04:27 7/27/1975 Beehive's Indicator 10:02:00 ie 7/27/1975 Castle 10:46:00 7/27/1975 Castle 21:00:00 7/27/1975 Daisy 7:53:00 7/27/1975 Daisy 7:56:00 7/27/1975 Daisy 9:09:00 7/27/1975 Daisy 9:12:00 7/27/1975 Daisy 10:25:00 7/27/1975 Daisy 10:28:00 7/27/1975 Daisy 11:46:00 7/27/1975 Daisy 12:59:00 7/27/1975 Daisy 13:03:00 7/27/1975 Daisy 15:30:00 7/27/1975 Daisy 16:50:00 7/27/1975 Depression 20:44:00 7/27/1975 Grand 12:14:00 2B 7/27/1975 Grand 19:43:00 7/27/1975 Great Fountain 10:32:00 ie 7/27/1975 Great Fountain 20:10:00 7/27/1975 Grotto 8:55:00 7/27/1975 Grotto Fountain 8:55:00 7/27/1975 Lion 12:04:00 7/27/1975 Lion 15:14:00 7/27/1975 Penta 10:35:00 end 11:28 7/27/1975 Riverside 9:10:00 7/27/1975 Riverside 15:10:00 7/27/1975 Round 12:32:00 7/27/1975 Spectacle 8:43:00 7/27/1975 Spectacle 10:07:00 7/27/1975 Spectacle 12:13:00 7/27/1975 Vault 6:28:00 7/27/1975 Vault 7:57:00 7/27/1975 Vault 8:54:00 7/27/1975 Vault 9:06:00 7/27/1975 Vault 10:11:00 7/27/1975 Vault 11:09:00 7/28/1975 Old Faithful 0:48:00 1:14:00 01:43 7/28/1975 Old Faithful 1:43:00 0:55:00 04:36 7/28/1975 Old Faithful 2:59:00 1:16:00 02:34 7/28/1975 Old Faithful 4:02:00 1:03:00 04:42 7/28/1975 Old Faithful 5:10:00 1:09:00 03:46 7/28/1975 Old Faithful 6:26:00 1:16:00 04:00 7/28/1975 Old Faithful 7:39:00 1:13:00 04:11 7/28/1975 Old Faithful 8:50:00 1:16:00 04:41 7/28/1975 Old Faithful 10:12:00 1:17:00 04:32 10:11 7/28/1975 Old Faithful 11:24:00 1:12:00 04:19 11:27 7/28/1975 Old Faithful 12:33:00 1:09:00 03:59 12:38 7/28/1975 Old Faithful 13:41:00 1:08:00 04:49 13:45 7/28/1975 Old Faithful 14:59:00 1:18:00 02:05 14:57 7/28/1975 Old Faithful 15:58:00 0:59:00 04:48 15:49 7/28/1975 Old Faithful 17:10:00 1:02:00 04:00 17:14 7/28/1975 Old Faithful 18:23:00 1:13:00 04:01 18:22 7/28/1975 Old Faithful 19:33:00 1:10:00 03:45 19:35 7/28/1975 Old Faithful 20:37:00 1:07:00 04:18 20:43 7/28/1975 Old Faithful 21:50:00 1:13:00 03:39 21:50 7/28/1975 Old Faithful 23:03:00 1:13:00 04:15 7/28/1975 Beehive's Indicator 7:25:00 ie 7/28/1975 Beehive's Indicator 17:37:00 ie end 18:03 7/28/1975 Beehive's Indicator 20:35:00 ie 7/28/1975 Castle 6:30:00 steam 7/28/1975 Castle 15:22:00 7/28/1975 Daisy 7:00:00 7/28/1975 Daisy 7:06:00 7/28/1975 Daisy 8:20:00 7/28/1975 Daisy 8:21:00 7/28/1975 Daisy 9:34:00 7/28/1975 Daisy 9:36:00 7/28/1975 Daisy 10:51:00 7/28/1975 Daisy 12:09:00 7/28/1975 Daisy 13:26:00 7/28/1975 Daisy 14:44:00 7/28/1975 Daisy 15:58:00 VR 7/28/1975 Daisy 16:02:00 7/28/1975 Daisy 17:19:00 7/28/1975 Daisy 18:32:00 7/28/1975 Depression 20:13:00 7/28/1975 Economic ~19:35:00 "wvs1-1.5"",bubbles rising" 7/28/1975 Economic ~19:35:00 dr bck into pl&cycl began 7/28/1975 Economic ~19:40:00 "ovfl strg in out chan,5m ltr" 7/28/1975 Grand 10:15:00 ie steam 7/28/1975 Grand 19:09:00 7/28/1975 Great Fountain 10:24:00 7/28/1975 Great Fountain 19:47:00 7/28/1975 Green Spring 9:45:00 7/28/1975 Grotto Fountain 9:43:00 7/28/1975 Lion 15:06:00 7/28/1975 Lion 19:53:00 7/28/1975 Oblong 7:10:00 7/28/1975 Oblong 14:22:00 7/28/1975 Oblong 21:16:00 7/28/1975 Old Tardy 10:49:00 7/28/1975 Penta 12:21:00 7/28/1975 Rift 11:08:00 end 13:26 7/28/1975 Rift 11:13:00 7/28/1975 Riverside 8:46:00 7/28/1975 Riverside 14:05:00 VR 7/28/1975 Riverside 20:00:00 7/28/1975 Rocket 19:50:00 7/28/1975 Sawmill 11:53:00 end 12:59 7/28/1975 South Grotto Fountain 9:43:00 7/29/1975 Old Faithful 0:15:00 1:12:00 01:52 7/29/1975 Old Faithful 1:01:53 0:47:00 04:53 7/29/1975 Old Faithful 2:16:00 1:15:00 04:16 7/29/1975 Old Faithful 3:29:00 1:13:00 04:08 7/29/1975 Old Faithful 4:37:00 1:08:00 04:35 7/29/1975 Old Faithful 5:47:00 1:10:00 03:49 7/29/1975 Old Faithful 6:54:00 1:06:00 03:51 7/29/1975 Old Faithful 8:13:00 1:19:00 03:30 7/29/1975 Old Faithful 9:37:00 1:24:00 04:00 9:24 7/29/1975 Old Faithful 10:42:00 1:05:00 03:56 10:52 7/29/1975 Old Faithful 11:56:00 1:14:00 04:13 7/29/1975 Old Faithful 13:11:00 1:15:00 04:05 7/29/1975 Old Faithful 14:27:00 1:16:00 04:27 14:23 7/29/1975 Old Faithful 15:35:00 1:08:00 04:48 7/29/1975 Old Faithful 16:54:00 0:41:00 02:01 16:51 7/29/1975 Old Faithful 17:40:00 0:46:00 04:36 17:44 7/29/1975 Old Faithful 19:01:00 1:21:00 02:01 18:55 7/29/1975 Old Faithful 19:47:00 0:46:00 04:14 19:51 7/29/1975 Old Faithful 21:02:00 1:15:00 02:10 20:58 7/29/1975 Old Faithful 21:53:00 0:52:00 04:37 21:52 7/29/1975 Old Faithful 23:04:00 1:11:00 03:10 7/29/1975 Beehive 2:17:00 ie end 2:21 7/29/1975 Beehive's Indicator 8:07:00 ie 7/29/1975 Castle 10:02:00 7/29/1975 Castle 19:26:00 7/29/1975 Daisy <08:00:00 7/29/1975 Dome active in the night 7/29/1975 Fountain 7:10:00 7/29/1975 Grand 10:04:00 7/29/1975 Grand 18:10:00 7/29/1975 Great Fountain 12:15:00 VR 7/29/1975 Great Fountain 21:30:00 VR 7/29/1975 Great Fountain 21:35:00 R.R. 7/29/1975 Oblong 10:00:00 7/29/1975 Oblong 18:05:00 7/29/1975 Riverside 13:40:00 7/29/1975 Riverside 19:36:00 7/29/1975 Splendid <08:00:00 7/30/1975 Old Faithful 0:11:00 1:06:00 04:12 7/30/1975 Old Faithful 1:25:15 1:15:00 03:56 7/30/1975 Old Faithful 2:30:53 1:06:00 03:56 7/30/1975 Old Faithful 3:41:03 1:10:00 04:21 7/30/1975 Old Faithful 4:55:04 1:14:00 03:52 7/30/1975 Old Faithful 6:06:52 1:12:00 04:25 7/30/1975 Old Faithful 7:18:18 1:11:00 03:24 7/30/1975 Old Faithful 8:35:00 1:17:00 04:19 8:26 7/30/1975 Old Faithful 9:55:00 1:20:00 04:11 9:48 7/30/1975 Old Faithful 10:58:00 1:03:00 03:54 11:08 7/30/1975 Old Faithful 12:08:00 1:10:00 04:20 7/30/1975 Old Faithful 13:18:00 1:10:00 05:03 13:20 7/30/1975 Old Faithful 14:33:00 1:15:00 04:28 14:33 7/30/1975 Old Faithful 15:41:00 1:08:00 02:15 15:48 7/30/1975 Old Faithful 16:36:00 0:55:00 04:53 16:33 7/30/1975 Old Faithful 17:52:00 1:16:00 03:56 17:51 7/30/1975 Old Faithful 18:59:00 1:07:00 04:11 19:04 7/30/1975 Old Faithful 20:18:00 1:19:00 02:01 20:12 7/30/1975 Old Faithful 21:06:00 0:48:00 04:41 21:08 7/30/1975 Old Faithful 22:18:00 1:13:00 02:42 22:22 7/30/1975 Old Faithful 23:17:00 0:59:00 04:40 7/30/1975 Beehive 12:16:00 7/30/1975 Castle 13:54:00 7/30/1975 Daisy dormant 7/30/1975 Depression 8:18:00 7/30/1975 Grand 21:23:00 7/30/1975 Great Fountain ~14:35:00 7/30/1975 Lion 7:40:00 7/30/1975 Lion 9:10:00 7/30/1975 Lion 10:53:00 7/30/1975 Lion 12:22:00 7/30/1975 Lion 14:52:00 7/30/1975 Lion 17:11:00 ie 7/30/1975 Riverside 7:46:00 7/30/1975 Riverside 19:50:29 7/30/1975 Sawmill 9:30:00 7/31/1975 Old Faithful 0:38:00 1:21:00 02:18 7/31/1975 Old Faithful 1:32:00 0:54:00 04:36 7/31/1975 Old Faithful 2:47:00 1:15:00 03:59 7/31/1975 Old Faithful 4:06:00 1:19:00 01:59 7/31/1975 Old Faithful 4:49:00 0:43:00 05:07 7/31/1975 Old Faithful 6:13:00 1:24:00 02:32 7/31/1975 Old Faithful 7:09:00 0:56:00 04:32 7/31/1975 Old Faithful 8:20:00 1:11:00 ~02:00 7/31/1975 Old Faithful 9:13:00 0:53:00 04:33 9:05 7/31/1975 Old Faithful 10:38:00 1:25:00 01:58 10:28 7/31/1975 Old Faithful 11:24:00 0:46:00 04:17 11:30 7/31/1975 Old Faithful 12:42:00 1:18:00 01:57 12:38 7/31/1975 Old Faithful 13:30:00 0:48:00 04:46 13:32 7/31/1975 Old Faithful 14:47:00 1:17:00 01:37 14:46 7/31/1975 Old Faithful 15:32:00 0:45:00 04:15 7/31/1975 Old Faithful 16:55:00 1:23:00 01:40 16:45 7/31/1975 Old Faithful 17:40:00 0:45:00 04:31 17:42 7/31/1975 Old Faithful 18:53:00 1:13:00 03:01 18:55 7/31/1975 Old Faithful 20:00:00 1:07:00 04:40 20:02 7/31/1975 Old Faithful 21:18:00 1:18:00 02:13 21:15 7/31/1975 Old Faithful 22:15:00 0:57:00 04:32 22:10 7/31/1975 Old Faithful 23:33:00 1:18:00 02:06 7/31/1975 Beehive's Indicator 7:06:00 ie 7/31/1975 Beehive's Indicator 10:54:00 7/31/1975 Beehive's Indicator 13:45:00 7/31/1975 Castle 9:20:00 7/31/1975 Castle 14:25:00 VR 7/31/1975 Depression 19:10:00 ie 7/31/1975 Fountain 10:20:00 7/31/1975 Grand 16:36:00 7/31/1975 Great Fountain ?17:30:00 7/31/1975 Lion 9:31:00 ie 7/31/1975 Oblong 13:35:00 VR 7/31/1975 Riverside 12:44:00 VR 7/31/1975 Riverside 18:28:00 VR 7/31/1975 Round 12:10:00 7/31/1975 Spiteful 16:10:00 8/1/1975 Old Faithful 0:35:00 1:02:00 04:23 8/1/1975 Old Faithful 1:53:00 1:17:00 03:37 8/1/1975 Old Faithful 3:04:00 1:11:00 02:00 8/1/1975 Old Faithful 3:50:00 0:46:00 05:05 8/1/1975 Old Faithful 5:15:00 1:24:00 01:45 8/1/1975 Old Faithful 5:55:00 0:41:00 04:47 8/1/1975 Old Faithful 7:10:00 1:15:00 03:00 8/1/1975 Old Faithful 8:05:00 0:55:00 03:50 (2:25 slow) 8/1/1975 Old Faithful 9:17:00 1:12:00 04:00? 9:17 8/1/1975 Old Faithful 10:19:00 1:02:00 03:56 10:14 8/1/1975 Old Faithful 11:38:00 1:19:00 03:30 11:30 8/1/1975 Old Faithful 12:36:00 0:58:00 04:58 12:50 8/1/1975 Old Faithful 13:55:00 1:19:00 02:00 13:51 8/1/1975 Old Faithful 14:40:00 0:45:00 04:30 14:46 8/1/1975 Old Faithful 16:05:00 1:25:00 01:51 15:54 8/1/1975 Old Faithful 16:51:00 0:46:00 04:43 16:52 8/1/1975 Old Faithful 18:15:00 1:24:00 01:43 18:07 8/1/1975 Old Faithful 19:06:00 0:51:00 04:30 19:02 8/1/1975 Old Faithful 20:26:00 1:14:00 02:25 20:20 8/1/1975 Old Faithful 21:13:00 0:52:00 04:00 21:14 8/1/1975 Old Faithful 22:31:00 1:19:00 04:08 22:26 8/1/1975 Old Faithful 23:43:00 1:12:00 04:02 8/1/1975 Beehive's Indicator 8:08:00 ie 8/1/1975 Beehive's Indicator 11:25:00 ie 8/1/1975 Beehive's Indicator 15:15:00 8/1/1975 Castle 14:50:00 8/1/1975 Daisy 14:14:00 8/1/1975 Daisy 15:26:00 V.C. 8/1/1975 Depression 20:50:00 8/1/1975 Fountain 11:00:00 8/1/1975 Grand 7:15:00 VR 5B 8/1/1975 Great Fountain ~10:45:00 8/1/1975 Great Fountain 18:54:00 ie 8/1/1975 Oblong 16:10:00 8/1/1975 Riverside 11:20:00 VR 8/1/1975 Riverside 16:42:00 8/1/1975 Round 11:38:00 8/1/1975 Splendid 16:03:00 8/2/1975 Old Faithful 0:58:00 1:35:00 01:52 8/2/1975 Old Faithful 1:52:00 0:54:00 04:32 8/2/1975 Old Faithful 3:07:00 1:15:00 02:06 8/2/1975 Old Faithful 3:59:00 0:52:00 04:43 8/2/1975 Old Faithful 5:24:00 1:25:00 short 8/2/1975 Old Faithful 6:07:00 0:43:00 04:22+ 8/2/1975 Old Faithful 7:20:00 1:13:00 02:02 8/2/1975 Old Faithful 8:05:00 0:45:00 04:45 8:10 8/2/1975 Old Faithful 9:36:00 1:28:00 04:08 (4m slow) 9:22 8/2/1975 Old Faithful 10:49:00 1:13:00 01:45 10:48 8/2/1975 Old Faithful 11:32:00 0:41:00 04:00 11:40 8/2/1975 Old Faithful 12:59:00 1:27:00 01:55 12:44 8/2/1975 Old Faithful 13:47:00 0:48:00 04:30 13:48 8/2/1975 Old Faithful 15:04:45 1:17:00 02:35 15:02 8/2/1975 Old Faithful 15:50:20 0:46:00 05:09 15:56 8/2/1975 Old Faithful 17:09:23 1:19:00 01:58 17:06 8/2/1975 Old Faithful 17:52:53 0:43:00 04:55 17:59 8/2/1975 Old Faithful 19:17:00 1:25:00 01:43 19:06 8/2/1975 Old Faithful 20:07:00 0:50:00 04:51 20:04 8/2/1975 Old Faithful 21:20:00 1:13:00 01:54 21:23 8/2/1975 Old Faithful 22:06:00 0:46:00 05:18 22:07 8/2/1975 Old Faithful 23:18:00 1:12:00 03:33 8/2/1975 Beehive's Indicator 2:09:00 8/2/1975 Beehive's Indicator 7:05:00 ie 8/2/1975 Castle 11:59:00 8/2/1975 Giantess 5:05:35 ie large burst 8/2/1975 Giantess 5:12:42 start of steam phase 8/2/1975 Giantess 5:13:16 peak of steam phase 8/2/1975 Giantess 5:35:32 spray sokd sitng in crater 8/2/1975 Giantess 5:41:11 spurts of water in steam 8/2/1975 Giantess 9:42:00 water phase eruption 8/2/1975 Giantess 10:18:00 8/2/1975 Giantess 10:49:00 8/2/1975 Giantess 11:22:00 8/2/1975 Giantess 11:54:00 d=10m14s 8/2/1975 Giantess 12:24:00 ie d=5m26s 8/2/1975 Giantess 13:00:00 d=9m36s 8/2/1975 Giantess 13:32:00 ie d=7m7s 8/2/1975 Giantess 14:00:00 ie d=7m22s 8/2/1975 Giantess 14:32:00 8/2/1975 Giantess 15:17:00 8/2/1975 Giantess 15:53:03 d=7m41s 8/2/1975 Giantess 16:17:00 8/2/1975 Giantess 16:52:00 8/2/1975 Giantess 17:45:00 ie 8/2/1975 Giantess 18:38:25 d=9m45s 8/2/1975 Giantess 19:17:45 d=10:15 8/2/1975 Giantess 19:51:04 d=8m27s 8/2/1975 Giantess 20:29:30 d=7m54s 8/2/1975 Giantess 21:10:37 d=8m39s 8/2/1975 Grand 7:21:00 8/2/1975 Grand 15:10:00 3B 8/2/1975 Great Fountain ~12:50:00 8/2/1975 Great Fountain 22:35:00 ieVR 8/2/1975 Lion 9:52:00 8/2/1975 Lion 11:20:00 88m 8/2/1975 Lion 13:14:00 114m 8/2/1975 Lion 15:09:00 "d=4m,115m" 8/2/1975 Lion 17:03:00 114m 8/2/1975 Lion 19:06:00 "d=4m4s, 123m" 8/2/1975 Lion 20:45:00 d=4m15s 8/2/1975 North Goggles 17:52:00 20-35' 8/2/1975 Oblong 8:10:00 8/2/1975 Oblong 16:52:00 8/2/1975 Penta 14:30:00 8/2/1975 Riverside 8:36:00 1st overflow 8/2/1975 Riverside 10:22:00 8/2/1975 Riverside 16:23:00 8/2/1975 Spectacle 17:35:00 8/2/1975 Spiteful 16:15:00 VR 8/2/1975 Uncertain ~15:00:00 8/2/1975 Vault ~8:57:00 d>10m 8/2/1975 Vault 14:46:00 8/2/1975 Vault 15:41:00 d=3m26s 8/2/1975 Vault 16:36:00 8/3/1975 Old Faithful 0:26:00 1:08:00 04:07 8/3/1975 Old Faithful 1:40:44 1:15:00 02:08 8/3/1975 Old Faithful 2:27:00 0:47:00 04:42 8/3/1975 Old Faithful 3:42:00 1:14:00 03:29 8/3/1975 Old Faithful 4:43:00 1:02:00 04:40 8/3/1975 Old Faithful 5:56:00 1:12:00 02:20 8/3/1975 Old Faithful 6:51:00 0:55:00 04:37 8/3/1975 Old Faithful 8:04:00 1:13:00 01:50 8/3/1975 Old Faithful 9:12:00 1:08:00 04:44 8/3/1975 Old Faithful 10:32:00 0:54:00 02:06 8/3/1975 Old Faithful 11:22:00 0:50:00 04:45 8:50 8/3/1975 Old Faithful 12:38:00 1:16:00 02:10 10:28 8/3/1975 Old Faithful 13:34:00 0:56:00 04:48 11:22 8/3/1975 Old Faithful 14:56:00 1:22:00 04:15 12:38 8/3/1975 Old Faithful 16:10:12 1:14:00 01:53 13:28 8/3/1975 Old Faithful 17:08:00 1:15:00 04:32 14:50 8/3/1975 Old Faithful 18:23:00 1:15:00 02:06 16:08 8/3/1975 Old Faithful 19:16:00 0:53:00 04:30 8/3/1975 Old Faithful 20:30:00 1:14:00 02:31 18:03 8/3/1975 Old Faithful 21:28:00 0:58:00 04:50 19:13 8/3/1975 Old Faithful 22:48:00 1:19:00 01:58 22:44 8/3/1975 Old Faithful 23:31:00 0:44:00 04:39 8/3/1975 Beehive's Indicator 11:05:00 end 11:46 8/3/1975 Castle 7:42:00 8/3/1975 Castle 17:57:00 8/3/1975 Depression 18:59:00 8/3/1975 Giantess 7:30:00 8/3/1975 Giantess 8:40:00 ie 8/3/1975 Giantess 10:30:00 ie d=7m25s 8/3/1975 Giantess 11:19:00 d=8m48s 8/3/1975 Giantess 12:04:00 d=7m41s 8/3/1975 Giantess 12:58:00 d=7m47s 8/3/1975 Giantess 14:17:00 d~8m 8/3/1975 Grand ?7:00:00 8/3/1975 Grand 13:41:00 8/3/1975 Grand 22:06:00 2B 8/3/1975 Great Fountain ?7:00:00 8/3/1975 Great Fountain 17:45:00 VR 8/3/1975 Lion 12:10:00 8/3/1975 Lion 13:58:00 ie 8/3/1975 Lion 15:41:30 8/3/1975 Lone Star 14:56:00 8/3/1975 Oblong 16:27:00 8/3/1975 Penta 19:10:00 ie 8/3/1975 Riverside 15:59:00 8/3/1975 Round 16:31:00 8/3/1975 Vault 16:28:00 8/3/1975 Vault 18:16:00 8/4/1975 Old Faithful 1:03:00 1:31:00 01:46 8/4/1975 Old Faithful 1:44:00 0:42:00 04:33 8/4/1975 Old Faithful 3:04:00 1:19:00 01:58 8/4/1975 Old Faithful 3:49:00 0:45:00 04:52 8/4/1975 Old Faithful 5:00:00 1:11:00 03:42 8/4/1975 Old Faithful 6:11:00 1:12:00 01:52 8/4/1975 Old Faithful 6:58:00 0:47:00 04:20 8/4/1975 Old Faithful 8:18:00 1:20:00 02:15 8:10 8/4/1975 Old Faithful 9:25:30 1:07:00 04:42 9:10 8/4/1975 Old Faithful 10:45:00 1:20:00 02:08 10:41 8/4/1975 Old Faithful 11:30:00 0:45:00 04:34 11:14 8/4/1975 Old Faithful 12:53:00 1:23:00 01:50 12:46 8/4/1975 Old Faithful 13:39:00 0:47:00 04:41 13:40 8/4/1975 Old Faithful 14:54:00 1:15:00 01:57 14:54 8/4/1975 Old Faithful 15:50:00 0:56:00 05:02 8/4/1975 Old Faithful 17:07:00 1:17:00 01:42 17:05 8/4/1975 Old Faithful 17:59:00 0:52:00 04:45 17:54 8/4/1975 Old Faithful 19:25:00 1:26:00 01:54 19:18 8/4/1975 Old Faithful 20:13:00 0:48:00 04:30 20:15 8/4/1975 Old Faithful 21:40:00 1:26:00 04:13 21:30 8/4/1975 Old Faithful 22:45:00 1:04:00 03:59 8/4/1975 Old Faithful 23:59:00 1:14:00 04:18 8/4/1975 Artemisia 10:35:00 8/4/1975 Beehive's Indicator 3:47:00 ie 8/4/1975 Castle 12:39:00 ie 8/4/1975 Castle 22:05:00 8/4/1975 Depression 21:33:00 8/4/1975 Grand 6:21:00 ie 8/4/1975 Grand 13:25:00 8/4/1975 Grand 20:35:00 3B 8/4/1975 Great Fountain 9:26:00 8/4/1975 Grotto Fountain 15:59:00 8/4/1975 Lone Star 11:30:00 8/4/1975 Riverside 10:03:00 8/4/1975 Riverside 16:01:00 8/5/1975 Old Faithful 1:15:00 1:17:00 04:27 1:15:06 8/5/1975 Old Faithful 2:27:00 1:12:00 02:01 2:27:01 8/5/1975 Old Faithful 3:23:00 0:56:00 04:47 3:22:39 8/5/1975 Old Faithful 4:38:00 1:16:00 04:16 4:38:19 8/5/1975 Old Faithful 5:48:00 1:09:00 01:53 5:47:48 8/5/1975 Old Faithful 6:39:00 0:51:00 04:22 6:37:00 8/5/1975 Old Faithful 7:59:00 1:20:00 04:00 7:56:00 7:52 8/5/1975 Old Faithful 9:07:00 1:08:00 04:07 9:07:00 9:10 8/5/1975 Old Faithful 10:10:00 1:03:00 04:30 10:09:00 10:20 8/5/1975 Old Faithful 11:27:00 1:17:00 04:25 11:26:00 11:25 8/5/1975 Old Faithful 12:35:00 1:08:00 04:07 12:34:00 8/5/1975 Old Faithful 13:43:00 1:24:00 04:42 13:42:00 8/5/1975 Old Faithful 15:07:00 1:08:00 01:57 15:06:00 2:33 8/5/1975 Old Faithful 15:56:00 0:49:00 04:56 15:55:00 8/5/1975 Old Faithful 17:16:00 1:20:00 01:46 17:15:00 7:11 8/5/1975 Old Faithful 18:12:00 0:56:00 04:46 18:11:00 18:03 8/5/1975 Old Faithful 19:27:00 1:15:00 02:13 19:26:00 19:28 8/5/1975 Old Faithful 20:19:00 0:52:00 04:35 20:17(IR) 20:20 8/5/1975 Old Faithful 21:34:00 1:16:00 02:02 21:33:00 21:34 8/5/1975 Old Faithful 22:24:00 0:50:00 04:45 22:24:00 8/5/1975 Old Faithful 23:47:00 1:23:00 04:17 23:46:41 8/5/1975 Beehive 5:41:00 steam phase 8/5/1975 Beehive 14:42:00 8/5/1975 Castle 7:10:00 VR 8/5/1975 Castle 7:50:00 steam 8/5/1975 Castle 16:55:00 ie 8/5/1975 Grand 12:10:00 1B 8/5/1975 Grand 19:32:00 4B 8/5/1975 Great Fountain 9:55:00 8/5/1975 Great Fountain 19:22:00 ie 8/5/1975 Lion 10:29:00 8/5/1975 Lion 11:51:00 8/5/1975 Lion 14:01:00 8/5/1975 Riverside 7:50:00 VR 8/5/1975 Riverside 13:14:00 VR 8/5/1975 Riverside 13:16:00 VR 8/5/1975 Riverside 18:34:00 VR 8/5/1975 Sawmill 12:33:00 ie 8/6/1975 Old Faithful 1:03:00 1:16:00 01:51 8/6/1975 Old Faithful 1:48:00 0:45:00 04:44 8/6/1975 Old Faithful 3:11:00 1:23:00 01:41 8/6/1975 Old Faithful 4:01:00 0:50:00 04:32 8/6/1975 Old Faithful 5:19:00 1:18:00 01:51 8/6/1975 Old Faithful 6:09:00 0:50:00 04:35 8/6/1975 Old Faithful 7:27:00 1:18:00 03:58 8/6/1975 Old Faithful 8:38:00 1:11:00 02:09 8:38 8/6/1975 Old Faithful 9:23:00 0:45:00 04:15 9:28 8/6/1975 Old Faithful 10:38:00 1:15:00 02:03 10:28 8/6/1975 Old Faithful 11:29:00 0:51:00 04:49 11:28 8/6/1975 Old Faithful 12:53:00 1:23:00 02:09 12:45 8/6/1975 Old Faithful 13:37:00 0:44:00 04:56 13:43 8/6/1975 Old Faithful 14:52:00 1:15:00 02:16 8/6/1975 Old Faithful 15:51:00 0:59:00 04:59 15:44 8/6/1975 Old Faithful 17:10:00 1:19:00 04:23 17:06 8/6/1975 Old Faithful 18:20:00 1:10:00 03:56 18:25 8/6/1975 Old Faithful 19:30:00 1:10:00 03:28 19:32 8/6/1975 Old Faithful 20:39:00 1:09:00 04:16 20:40 8/6/1975 Old Faithful 21:59:00 1:19:00 01:48 21:51 8/6/1975 Old Faithful 22:42:00 0:44:00 04:57 8/6/1975 Beehive 15:53:00 8/6/1975 Castle 11:20:00 8/6/1975 Castle 21:02:00 ie 8/6/1975 Depression 16:32:00 8/6/1975 Grand 10:10:00 8/6/1975 Grand 17:48:00 3B 8/6/1975 Great Fountain 5:43:00 8/6/1975 Great Fountain 13:25:00 8/6/1975 Green Spring 11:07:00 10-12' 8/6/1975 Grotto 11:43:00 8/6/1975 Grotto Fountain 11:36:00 d=21m 8/6/1975 Riverside 11:05:00 VR 8/6/1975 Riverside 17:07:00 VR 8/6/1975 Sawmill 10:54:00 8/6/1975 Sawmill 13:03:00 8/6/1975 Turban 17:47:00 8/6/1975 West Triplet ~17:48:00 ovflw durng Grand erupt. 8/7/1975 Old Faithful 0:05:00 1:22:00 02:06 8/7/1975 Old Faithful 0:53:00 0:48:00 04:54 8/7/1975 Old Faithful 2:10:00 1:17:00 03:52 8/7/1975 Old Faithful 3:20:00 1:10:00 04:02 8/7/1975 Old Faithful 4:28:00 1:08:00 01:56 8/7/1975 Old Faithful 5:12:00 0:45:00 04:09 8/7/1975 Old Faithful 6:29:00 1:17:00 02:02 8/7/1975 Old Faithful 7:23:00 0:55:00 04:37 8/7/1975 Old Faithful 8:42:00 1:19:00 01:52 8:38 8/7/1975 Old Faithful 9:45:00 1:03:00 04:26 9:34 8/7/1975 Old Faithful 10:56:00 1:11:00 02:04 10:57 8/7/1975 Old Faithful 11:40:00 0:44:00 04:15 11:48 8/7/1975 Old Faithful 13:05:00 1:25:00 01:50 12:53 8/7/1975 Old Faithful 13:49:00 0:41:00 04:53 13:56 8/7/1975 Old Faithful 15:10:00 1:21:00 02:06 15:04 8/7/1975 Old Faithful 16:00:00 0:50:00 04:30 16:00 8/7/1975 Old Faithful 17:21:00 1:21:00 02:05 17:15 8/7/1975 Old Faithful 18:13:00 0:52:00 04:49 18:11 8/7/1975 Old Faithful 19:40:00 1:27:00 04:15 19:28 8/7/1975 Old Faithful 20:44:00 1:05:00 01:55 20:53 8/7/1975 Old Faithful 21:37:00 0:54:00 04:41 8/7/1975 Old Faithful 22:59:00 1:22:00 01:46 8/7/1975 Old Faithful 23:49:00 0:50:00 05:05 8/7/1975 Castle 13:33:00 8/7/1975 Grand 8:11:00 1B 8/7/1975 Grand 15:59:00 8/7/1975 Great Fountain ~9:00:00 Rick est. 8/7/1975 Great Fountain 17:21:00 VR 8/7/1975 Penta 8:00:00 8/7/1975 Riverside 10:26:00 8/7/1975 Riverside ?15:45:00 8/7/1975 Union 5:30:00 ie 8/7/1975 Union 8:07:00 8/8/1975 Old Faithful 1:02:00 1:13:00 01:54 8/8/1975 Old Faithful 2:03:00 1:01:00 04:36 8/8/1975 Old Faithful 3:18:00 1:15:00 02:03 8/8/1975 Old Faithful 4:11:00 0:53:00 04:37 8/8/1975 Old Faithful 5:25:00 1:14:00 03:55 8/8/1975 Old Faithful 6:33:00 1:08:00 04:13 8/8/1975 Old Faithful 7:43:00 1:10:00 04:18 8/8/1975 Old Faithful 9:11:00 1:28:00 8/8/1975 Old Faithful 10:06:00 0:55:00 04:39 10:12 8/8/1975 Old Faithful 11:26:00 1:20:00 02:10 11:20 8/8/1975 Old Faithful 12:10:00 0:44:00 04:07 12:18 8/8/1975 Old Faithful 13:29:00 1:19:00 02:47 13:22 8/8/1975 Old Faithful 14:15:00 0:46:00 04:15 14:44 8/8/1975 Old Faithful 15:29:00 1:14:00 02:15 15:28 8/8/1975 Old Faithful 16:19:00 0:50:00 03:59 16:22 8/8/1975 Old Faithful 17:40:00 1:21:00 02:12 17:31 8/8/1975 Old Faithful 18:27:00 0:47:00 04:15 18:32 8/8/1975 Old Faithful 19:41:00 1:14:00 03:35 19:40 8/8/1975 Old Faithful 20:45:00 1:04:00 04:13 20:51 8/8/1975 Old Faithful 22:00:00 1:15:00 03:41 21:58 8/8/1975 Old Faithful 23:05:00 1:06:00 03:15 23:10 8/8/1975 Beehive 14:30:00 8/8/1975 Castle 11:15:00 ie 8/8/1975 Castle 21:00:00 ie 8/8/1975 Grand 9:02:00 8/8/1975 Grand 16:44:00 4B 8/8/1975 Great Fountain 11:50:00 VR 8/8/1975 Great Fountain ~18:45 probable 8/8/1975 North Goggles 7:59:00 8/8/1975 Riverside ~7:50:00 8/8/1975 Riverside 13:42:00 VR 8/8/1975 Riverside 19:15:00 VR 8/9/1975 Old Faithful 0:07:00 1:02:00 04:32 8/9/1975 Old Faithful 1:18:00 1:11:00 03:56 8/9/1975 Old Faithful 2:22:00 1:04:00 03:46 8/9/1975 Old Faithful 3:35:00 1:14:00 02:13 8/9/1975 Old Faithful 4:27:00 0:51:00 04:24 8/9/1975 Old Faithful 5:47:00 1:21:00 01:57 8/9/1975 Old Faithful 6:41:00 0:53:00 04:42 8/9/1975 Old Faithful 7:53:00 1:12:00 01:55 7:56 8/9/1975 Old Faithful 8:50:00 0:57:00 04:15 8:43 8/9/1975 Old Faithful 10:03:00 1:13:00 04:00 10:03 8/9/1975 Old Faithful 11:22:00 1:20:00 03:30 11:16 8/9/1975 Old Faithful 12:40:00 1:18:00 03:58 12:34 8/9/1975 Old Faithful 13:56:00 1:16:00 01:49 13:52 8/9/1975 Old Faithful 14:50:00 0:54:00 04:52 14:43 8/9/1975 Old Faithful 16:02:00 1:12:00 02:15 16:06 8/9/1975 Old Faithful 16:59:00 0:57:00 04:15 16:54 8/9/1975 Old Faithful 18:22:00 1:23:00 03:57 18:12 8/9/1975 Old Faithful 19:34:00 1:12:00 04:35 19:34 8/9/1975 Old Faithful 20:41:00 1:07:00 01:57 20:38 8/9/1975 Old Faithful 21:37:00 0:56:00 long 21:31 8/9/1975 Old Faithful 22:47:00 1:10:00 long 8/9/1975 Old Faithful 23:51:00 1:04:00 04:22 8/9/1975 Artemisia 15:08:00 ie 8/9/1975 Beehive's Indicator 9:42:00 ie 8/9/1975 Castle 7:25:00 8/9/1975 Castle 16:35:00 8/9/1975 Depression 20:22:00 8/9/1975 Grand 7:58:00 8/9/1975 Grand 15:34:00 3B 8/9/1975 Great Fountain 10:21:00 8/9/1975 Great Fountain 18:18:00 VR 8/9/1975 Riverside 11:05:00 8/9/1975 Riverside 16:27:00 8/9/1975 Round 9:33:00 8/10/1975 Old Faithful 1:17:00 1:26:00 03:43 8/10/1975 Old Faithful 2:29:00 1:12:00 04:09 8/10/1975 Old Faithful 3:52:00 1:23:00 01:44 8/10/1975 Old Faithful 4:42:00 0:50:00 04:07 8/10/1975 Old Faithful 5:54:00 1:12:00 03:51 8/10/1975 Old Faithful 7:05:00 1:12:00 02:04 8/10/1975 Old Faithful 7:56:00 0:51:00 04:00 7:54 8/10/1975 Old Faithful 9:16:00 1:20:00 03:41 9:08 8/10/1975 Old Faithful 10:24:00 1:08:00 04:22 10:26 8/10/1975 Old Faithful 11:39:00 1:15:00 04:14 11:38 8/10/1975 Old Faithful 12:52:00 1:13:00 03:43 12:52 8/10/1975 Old Faithful 14:04:00 1:12:00 04:17 14:02 8/10/1975 Old Faithful 15:24:00 1:20:00 04:24 15:57 8/10/1975 Old Faithful 16:27:00 1:03:00 03:47 16:39 8/10/1975 Old Faithful 17:50:00 1:23:00 04:19 17:17 8/10/1975 Old Faithful 18:55:00 1:05:00 04:26 19:03 8/10/1975 Old Faithful 20:07:00 1:12:00 04:30 20:10 8/10/1975 Old Faithful 21:31:00 1:24:00 01:58 21:22 8/10/1975 Old Faithful 22:23:00 0:52:00 04:48 8/10/1975 Old Faithful 23:34:00 1:10:00 03:51 8/10/1975 Beehive 18:47:00 8/10/1975 Castle 11:35:00 8/10/1975 Castle 21:07:00 8/10/1975 Depression 18:24:00 8/10/1975 Grand ?6:30:00 8/10/1975 Grand 14:14:00 4B 8/10/1975 Grand 1x:36:00 8/10/1975 Grand 21:45:00 VR 8/10/1975 Great Fountain 9:56:00 8/10/1975 Great Fountain 18:01:00 8/10/1975 Oblong 8:30:00 8/10/1975 Oblong 16:00:00 8/10/1975 Riverside 3:10:00 8/10/1975 Riverside 8:34:00 8/10/1975 Riverside 14:03:00 8/10/1975 Riverside 19:28:00 8/10/1975 Round 20:20:00 8/11/1975 Old Faithful 0:45:00 1:11:00 01:47 8/11/1975 Old Faithful 1:39:00 0:54:00 04:41 8/11/1975 Old Faithful 2:57:00 1:18:00 03:32-03:45 8/11/1975 Old Faithful 4:01:00 1:04:00 04:11 8/11/1975 Old Faithful 5:12:00 1:11:00 03:40 8/11/1975 Old Faithful 6:26:00 1:14:00 02:18 8/11/1975 Old Faithful 7:11:00 0:45:00 04:27 8/11/1975 Old Faithful 8:34:00 1:23:00 01:13 8:26 8/11/1975 Old Faithful 9:16:00 0:42:00 04:34 9:18 8/11/1975 Old Faithful 10:31:00 0:47:00 02:01 10:31 8/11/1975 Old Faithful 11:29:00 0:58:00 04:01 11:21 8/11/1975 Old Faithful 12:44:00 1:13:00 02:43 12:41 8/11/1975 Old Faithful 13:39:00 1:04:00 04:45 13:39 8/11/1975 Old Faithful 14:54:00 1:15:00 02:08 14:55 8/11/1975 Old Faithful 15:52:00 0:58:00 04:32 15:44 8/11/1975 Old Faithful 17:01:00 1:09:00 03:40 17:06 8/11/1975 Old Faithful 18:19:00 1:18:00 04:21 18:11 8/11/1975 Old Faithful 19:33:00 1:14:00 04:18 19:32 8/11/1975 Old Faithful 20:45:00 1:12:00 04:29 20:46 8/11/1975 Old Faithful 21:57:00 1:12:00 03:49 22:00 8/11/1975 Old Faithful 23:01:00 1:04:00 04:16 8/11/1975 Beehive 16:19:00 8/11/1975 Castle 6:10:00 VR 8/11/1975 Castle 9:47:00 VR 8/11/1975 Castle 20:06:00 8/11/1975 Great Fountain 15:50:00 8/11/1975 Grand 5:25:00 VR 2B 8/11/1975 Grand 12:28:00 5B 8/11/1975 Grand 19:13:00 3B 8/11/1975 Riverside 12:10:00 VR 8/11/1975 Riverside 17:27:00 8/11/1975 Round 4:17:00 8/12/1975 Old Faithful 0:10:00 1:08:00 03:36 8/12/1975 Old Faithful 1:18:00 1:09:00 04:31 8/12/1975 Old Faithful 2:35:00 1:17:00 04:25 8/12/1975 Old Faithful 3:41:00 1:07:00 04:19 8/12/1975 Old Faithful 4:52:00 1:11:00 04:20 8/12/1975 Old Faithful 6:04:00 1:12:00 03:48 8/12/1975 Old Faithful 7:09:00 1:05:00 04:02 8/12/1975 Old Faithful 8:23:00 1:14:00 01:45 8:20 8/12/1975 Old Faithful 9:19:00 0:56:00 03:15 9:10 8/12/1975 Old Faithful 10:34:00 1:15:00 02:01 10:30 8/12/1975 Old Faithful 11:34:09 1:00:00 04:51 11:24 8/12/1975 Old Faithful 12:52:35 1:18:00 04:02 12:49 8/12/1975 Old Faithful 14:01:00 1:09:00 02:38 8/12/1975 Old Faithful 14:51:39 0:50:00 04:49 14:53 8/12/1975 Old Faithful 16:11:00 1:20:00 01:57 16:06 8/12/1975 Old Faithful 17:01:20 0:50:00 05:09 17:01 8/12/1975 Old Faithful 18:22:00 1:21:00 01:51 18:16 8/12/1975 Old Faithful 19:12:00 0:50:00 04:39 19:09 8/12/1975 Old Faithful 20:38:00 1:26:00 02:57 20:28 8/12/1975 Old Faithful 21:32:00 0:54:00 04:27 21:51 8/12/1975 Old Faithful 22:43:00 1:11:00 04:02 8/12/1975 Beehive 8:30:00 VR 8/12/1975 Great Fountain 8:50:00 8/12/1975 Great Fountain 19:24:00 8/12/1975 Oblong 21:07:00 8/12/1975 Grand 9:25:00 8/12/1975 Grand 16:30:00 3B 8/12/1975 Riverside 10:19:00 8/12/1975 Riverside 15:54:00 8/12/1975 Castle ~14:30:00 8/12/1975 Lion 20:40:00 8/12/1975 Spa 20:53:00 8/13/1975 Old Faithful 0:00:00 1:17:00 01:48 8/13/1975 Old Faithful 0:48:00 0:48:00 04:23 8/13/1975 Old Faithful 2:04:00 1:16:00 03:40 8/13/1975 Old Faithful 3:16:00 1:12:00 03:59 8/13/1975 Old Faithful 4:38:00 1:22:00 04:34 8/13/1975 Old Faithful 5:50:00 1:13:00 04:10 8/13/1975 Old Faithful 7:02:00 1:12:00 03:50 8/13/1975 Old Faithful 8:13:00 1:11:00 04:04 8:12 8/13/1975 Old Faithful 9:30:00 1:17:00 04:07 9:25 8/13/1975 Old Faithful 10:38:54 1:08:00 04:04 10:42 8/13/1975 Old Faithful 11:52:00 1:14:00 04:26 8/13/1975 Old Faithful 13:16:00 1:16:00 01:40 13:07 8/13/1975 Old Faithful 14:10:00 0:54:00 04:54 14:03 8/13/1975 Old Faithful 15:25:00 1:15:00 04:00 15:26 8/13/1975 Old Faithful 16:35:00 1:10:00 02:01 16:37 8/13/1975 Old Faithful 17:28:00 0:53:00 04:38 17:25 8/13/1975 Old Faithful 18:52:00 1:24:00 03:58 8/13/1975 Old Faithful 20:08:00 1:16:00 04:50 20:02 8/13/1975 Old Faithful 21:23:00 1:15:00 03:21 21:23 8/13/1975 Old Faithful 22:29:00 1:06:00 04:04 22:33 8/13/1975 Old Faithful 23:48:00 1:19:00 01:57 8/13/1975 Artemisia 15:45:00 d=33 8/13/1975 Beehive 18:40:00 ie 8/13/1975 Beehive's Indicator 14:50:00 ie 8/13/1975 Castle 9:24:00 ie 8/13/1975 Castle 20:03:00 8/13/1975 Depression 12:28:00 8/13/1975 Grand 0:05:00 VR 2B 8/13/1975 Grand 8:29:00 3B 8/13/1975 Grand 16:08:00 2B 8/13/1975 Great Fountain 14:00:00 VR 8/13/1975 Lone Star 9:38:00 8/13/1975 Oblong 14:42:00 8/13/1975 Riverside 8:54:00 8/13/1975 Riverside 14:15:00 VR 8/13/1975 Riverside 14:20:00 VR 8/13/1975 Riverside 19:48:00 VR 8/13/1975 Round 15:19:00 8/14/1975 Old Faithful 0:31:00 0:43:00 04:28 8/14/1975 Old Faithful 1:56:00 1:25:00 01:56 8/14/1975 Old Faithful 2:43:00 0:48:00 03:51 8/14/1975 Old Faithful 4:05:00 1:21:00 04:29 8/14/1975 Old Faithful 5:19:00 1:14:00 04:14 8/14/1975 Old Faithful 6:38:00 1:19:00 04:10 8/14/1975 Old Faithful 7:54:00 1:16:00 04:15 7:50 8/14/1975 Old Faithful 9:05:00 1:11:00 04:05 9:06 8/14/1975 Old Faithful 10:18:00 1:13:00 03:38 10:17 8/14/1975 Old Faithful 11:24:00 1:06:00 03:48 11:28 8/14/1975 Old Faithful 12:40:00 1:16:00 04:35 12:34 8/14/1975 Old Faithful 13:50:00 1:10:00 04:05 13:55 8/14/1975 Old Faithful 14:55:00 1:05:00 04:12 15:02 8/14/1975 Old Faithful 16:05:00 1:10:00 03:30 16:07 8/14/1975 Old Faithful 17:14:00 1:09:00 01:42 17:15 8/14/1975 Old Faithful 18:08:00 0:54:00 03:50 18:01 8/14/1975 Old Faithful 19:20:00 1:12:00 01:53 19:18 8/14/1975 Old Faithful 20:09:00 0:49:00 04:44 20:10 8/14/1975 Old Faithful 21:35:00 1:25:00 01:50 21:24 8/14/1975 Old Faithful 22:23:00 0:49:00 04:27 8/14/1975 Old Faithful 23:34:00 1:11:00 03:54 8/14/1975 Beehive's Indicator 16:24:00 ie 8/14/1975 Castle 17:42:00 8/14/1975 Grand 16:04:00 3B 8/14/1975 Great Fountain 16:34:00 8/14/1975 Lion 20:08:00 ie 8/14/1975 Riverside 12:27:00 8/14/1975 Spa 11:27:00 "end12:09,10-30'" 8/15/1975 Old Faithful 0:53:00 1:19:00 03:58 8/15/1975 Old Faithful 2:04:00 1:11:00 04:36 8/15/1975 Old Faithful 3:12:00 1:08:00 03:38 8/15/1975 Old Faithful 4:31:00 1:19:00 04:21 8/15/1975 Old Faithful 5:42:00 1:11:00 02:12 8/15/1975 Old Faithful 6:28:00 0:47:00 04:45 8/15/1975 Old Faithful 7:48:00 1:20:00 03:53 7:44 8/15/1975 Old Faithful 8:57:00 1:09:00 04:08 8:58 8/15/1975 Old Faithful 10:04:00 1:07:00 04:03 10:10 8/15/1975 Old Faithful 11:13:00 1:09:00 02:38 11:16 8/15/1975 Old Faithful 12:27:00 1:16:00 02:20 12:04 8/15/1975 Old Faithful 13:24:00 0:57:00 04:00 13:19 8/15/1975 Old Faithful 14:34:00 1:10:00 03:00 14:36 8/15/1975 Old Faithful 15:40:00 1:06:00 03:51 15:47 8/15/1975 Old Faithful 17:03:00 1:23:00 03:20 16:47 8/15/1975 Old Faithful 18:16:00 1:13:00 04:56 18:13 8/15/1975 Old Faithful 19:32:00 1:16:00 01:55 19:30 8/15/1975 Old Faithful 20:25:00 0:53:00 04:38 20:22 8/15/1975 Old Faithful 21:35:00 1:10:00 01:39 21:41 8/15/1975 Old Faithful 22:19:00 0:44:00 04:15 8/15/1975 Old Faithful 23:36:00 1:17:00 04:23 8/15/1975 Beehive's Indicator 18:51:00 8/15/1975 Castle 12:40:00 VR 8/15/1975 Depression 20:32:00 8/15/1975 Fountain 16:14:00 8/15/1975 Giantess 16:33:00 ie first noticed 8/15/1975 Giantess 17:01:00 2nd burst 8/15/1975 Giantess 17:31:00 steam phase 8/15/1975 Grand 7:55:00 8/15/1975 Grand 8:01:00 ie 8/15/1975 Grand 15:35:00 VR 8/15/1975 Great Fountain 8:32:00 8/15/1975 Riverside 10:30:00 VR 8/15/1975 Riverside 16:20:00 8/16/1975 Old Faithful 0:47:00 03:31 8/16/1975 Old Faithful 1:55:00 1:08:00 03:50 8/16/1975 Old Faithful 3:03:00 1:08:00 04:00 8/16/1975 Old Faithful 4:09:00 1:06:00 04:13 8/16/1975 Old Faithful 5:26:00 1:17:00 04:04 8/16/1975 Old Faithful 6:42:00 1:16:00 04:12 8/16/1975 Old Faithful 7:57:00 1:15:00 02:00 7:54 8/16/1975 Old Faithful 8:48:00 0:51:00 04:49 8:48 8/16/1975 Old Faithful 10:03:00 1:05:00 02:15 10:04 8/16/1975 Old Faithful 10:51:00 0:48:00 04:34 10:56 8/16/1975 Old Faithful 12:31:00 1:40:00 04:25 12:06 8/16/1975 Old Faithful 13:34:00 1:03:00 03:42 1:46 8/16/1975 Old Faithful 14:49:00 1:15:00 04:03 14:44 8/16/1975 Old Faithful 15:54:00 1:05:00 04:04 16:00 8/16/1975 Old Faithful 17:00:00 1:06:00 03:45 17:06 8/16/1975 Old Faithful 18:11:00 1:11:00 04:30 18:10 8/16/1975 Old Faithful 19:20:00 1:09:00 04:14 19:26 8/16/1975 Old Faithful 20:44:00 1:24:00 ~4 1/2 20:30 8/16/1975 Old Faithful 21:52:00 1:07:00 01:55 21:59 8/16/1975 Old Faithful 22:43:00 0:51:00 04:30 8/16/1975 Beehive 10:47:06 d=5m12s 8/16/1975 Castle 7:30:00 8/16/1975 Castle 16:45:00 8/16/1975 Depression 13:11:00 8/16/1975 Depression 19:05:00 ie 8/16/1975 Fountain 12:40:00 ie 8/16/1975 Giantess 6:32:00 8/16/1975 Giantess 7:36:00 8/16/1975 Giantess 8:28:00 ie 8/16/1975 Giantess 9:17:00 8/16/1975 Giantess 9:54:00 8/16/1975 Giantess 10:39:00 8/16/1975 Giantess 11:27:00 8/16/1975 Giantess 12:15:00 small spurt 8/16/1975 Giantess 12:30:00 8/16/1975 Giantess 13:39:00 8/16/1975 Giantess 14:26:00 8/16/1975 Giantess 15:32:00 8/16/1975 Giantess 16:29:00 8/16/1975 Giantess 17:17:00 8/16/1975 Giantess 18:50:00 ie 8/16/1975 Giantess 19:47:00 ie 8/16/1975 Giantess 20:00:00 no erupt20:00-23:00VR 8/16/1975 Grand 7:06:00 8/16/1975 Grand 14:58:00 3B 8/16/1975 Great Fountain 12:05:00 VR 8/16/1975 Great Fountain 19:27:00 VR 8/16/1975 Riverside 8:28:00 ie 8/16/1975 Riverside 14:12:00 8/16/1975 Riverside 19:43:00 8/16/1975 White Dome 20:01:00 8/17/1975 Old Faithful 0:01:00 1:17:00 01:53 8/17/1975 Old Faithful 1:17:00 1:16:00 04:41 8/17/1975 Old Faithful 2:11:00 0:54:00 01:38 8/17/1975 Old Faithful 3:25:00 1:14:00 04:42 8/17/1975 Old Faithful 4:34:00 1:09:00 01:48 8/17/1975 Old Faithful 5:54:00 1:20:00 04:30 8/17/1975 Old Faithful 6:34:00 0:40:00 03:39 8/17/1975 Old Faithful 7:50:00 1:15:00 03:49 8/17/1975 Old Faithful 9:03:00 1:13:00 03:30 9:00 8/17/1975 Old Faithful 10:12:00 1:10:00 03:58 10:18 8/17/1975 Old Faithful 11:18:00 1:16:00 03:55 11:22 8/17/1975 Old Faithful 12:34:00 1:16:00 04:41 12:30 8/17/1975 Old Faithful 13:48:00 1:14:00 01:51 13:46 8/17/1975 Old Faithful 15:02:00 1:14:00 04:48 15:04 8/17/1975 Old Faithful 15:52:00 0:50:00 04:10 8/17/1975 Old Faithful 17:13:00 1:13:00 04:01 17:00 8/17/1975 Old Faithful 18:20:00 1:07:00 04:08 18:26 8/17/1975 Old Faithful 19:25:00 1:05:00 04:09 19:32 8/17/1975 Old Faithful 20:52:00 1:26:00 03:57 20:36 8/17/1975 Old Faithful 21:57:00 1:05:00 04:05 22:04 8/17/1975 Old Faithful 23:12:00 1:15:00 04:04 8/17/1975 Beehive 16:09:00 8/17/1975 Castle 7:43:00 ie 8/17/1975 Castle 17:18:00 VR 8/17/1975 Depression 11:17:00 8/17/1975 Dome 9:34:00 8/17/1975 Dome 9:52:00 8/17/1975 Dome 10:17:00 8/17/1975 Dome 10:42:00 8/17/1975 Dome 11:04:00 8/17/1975 Dome 11:30:00 8/17/1975 Dome 11:56:00 8/17/1975 Dome 12:19:00 8/17/1975 Dome 15:28:00 ie 8/17/1975 Dome 18:18:00 ie 8/17/1975 Dome 18:52:00 8/17/1975 Grand 18:52:00 ie 8/17/1975 Great Fountain 15:10:00 VR 8/17/1975 Oblong 12:38:00 8/17/1975 Oblong 19:26:00 8/17/1975 Riverside 11:50:00 VR 8/17/1975 Riverside 17:38:00 8/17/1975 Round 12:18:00 8/18/1975 Old Faithful 0:19:00 1:07:00 04:04 8/18/1975 Old Faithful 1:35:00 1:16:00 01:47 8/18/1975 Old Faithful 2:15:00 0:40:00 04:39 8/18/1975 Old Faithful 3:39:00 1:24:00 01:58 8/18/1975 Old Faithful 4:40:00 1:01:00 04:48 8/18/1975 Old Faithful 5:54:00 1:14:00 01:47 8/18/1975 Old Faithful 6:37:00 0:44:00 04:33 8/18/1975 Old Faithful 7:55:00 1:18:00 03:41 7:52 8/18/1975 Old Faithful 9:00:00 1:05:00 04:05 9:04 8/18/1975 Old Faithful 10:04:00 1:04:00 04:13 10:12 8/18/1975 Old Faithful 11:16:00 1:12:00 03:55 11:17 8/18/1975 Old Faithful 12:18:00 1:02:00 04:37 12:28 8/18/1975 Old Faithful 13:37:00 1:19:00 03:54 13:33 8/18/1975 Old Faithful 15:05:00 1:28:00 04:00 14:49 8/18/1975 Old Faithful 16:26:00 1:21:00 01:54 16:17 8/18/1975 Old Faithful 17:12:00 0:46:00 04:30 17:14 8/18/1975 Old Faithful 18:34:00 1:22:00 02:15 18:28 8/18/1975 Old Faithful 19:37:00 1:03:00 04:00 19:26 8/18/1975 Old Faithful 20:48:00 1:11:00 02:22 20:49 8/18/1975 Old Faithful 21:34:00 0:48:00 04:26 21:40 8/18/1975 Old Faithful 23:03:00 1:28:00 03:36 22:50 8/18/1975 Artemisia 16:00:00 8/18/1975 Beehive 9:09:00 8/18/1975 Castle 11:59:00 VR 8/18/1975 Castle 21:34:00 8/18/1975 Depression 15:36:00 8/18/1975 Dome still active 8/18/1975 Grand 13:45:00 8/18/1975 Grand 21:35:00 8/18/1975 Great Fountain 12:11:00 VR 8/18/1975 Great Fountain 19:50:00 8/18/1975 Lion 15:25:00 8/18/1975 Lion 18:43:00 8/18/1975 Riverside 10:47:00 8/18/1975 Riverside 16:19:00 8/19/1975 Old Faithful 0:05:00 1:03:00 04:14 8/19/1975 Old Faithful 1:15:00 1:09:00 04:01 8/19/1975 Old Faithful 2:21:00 1:06:00 03:59 8/19/1975 Old Faithful 3:37:00 1:16:00 01:55 8/19/1975 Old Faithful 4:22:00 0:44:00 04:31 8/19/1975 Old Faithful 5:39:00 1:17:00 03:42 8/19/1975 Old Faithful 6:49:00 1:11:00 04:02 8/19/1975 Old Faithful 7:56:00 1:07:00 03:14+ 8:01 8/19/1975 Old Faithful 9:14:00 1:18:00 03:30 9:06 8/19/1975 Old Faithful 10:27:00 1:13:00 04:23 10:24 8/19/1975 Old Faithful 11:38:00 1:11:00 03:57 11:42 8/19/1975 Old Faithful 12:44:00 1:06:00 04:39 12:50 8/19/1975 Old Faithful 14:00:00 1:16:00 03:04 13:58 8/19/1975 Old Faithful 15:08:00 1:08:00 05:02 15:12 8/19/1975 Old Faithful 16:29:00 1:21:00 02:05 16:23 8/19/1975 Old Faithful 17:20:00 0:51:00 04:38 17:19 8/19/1975 Old Faithful 18:36:00 1:16:00 02:13 18:35 8/19/1975 Old Faithful 19:21:00 0:45:00 04:30 19:28 8/19/1975 Old Faithful 20:48:00 1:27:00 01:36 20:36 8/19/1975 Old Faithful 21:29:00 0:40:00 04:42 21:33 8/19/1975 Old Faithful 22:48:00 1:19:00 02:05 8/19/1975 Old Faithful 23:35:00 0:47:00 04:33 8/19/1975 Beehive 12:00:00 8/19/1975 Beehive's Indicator 18:12:00 8/19/1975 Castle 8:15:00 8/19/1975 Castle 19:20:00 8/19/1975 Grand 12:19:00 2B 8/19/1975 Grand 20:10:00 VR 8/19/1975 Great Fountain ~11:45:00 8/19/1975 Great Fountain 20:32:00 8/19/1975 Lion 2:16:00 ie 8/19/1975 Oblong 9:20:00 ie 8/19/1975 Oblong 18:16:00 8/19/1975 Riverside 8:59:00 8/19/1975 Riverside 14:21:00 VR 8/19/1975 Riverside 20:00:00 VR 8/19/1975 Round 22:01:00 8/20/1975 Old Faithful 0:47:00 1:11:00 03:26 8/20/1975 Old Faithful 1:51:00 1:05:00 03:57 8/20/1975 Old Faithful 2:55:00 1:04:00 03:47 8/20/1975 Old Faithful 4:13:00 1:17:00 01:46 8/20/1975 Old Faithful 5:02:00 0:50:00 04:39 8/20/1975 Old Faithful 6:19:00 1:17:00 01:56 8/20/1975 Old Faithful 7:08:00 0:49:00 04:53 8/20/1975 Old Faithful 8:27:00 1:19:00 03:14 8:23 8/20/1975 Old Faithful 9:32:00 1:05:00 03:42 9:38 8/20/1975 Old Faithful 10:42:00 1:10:00 04:00 10:42 8/20/1975 Old Faithful 11:50:00 1:08:00 03:49 11:54 8/20/1975 Old Faithful 13:11:00 1:21:00 04:38 13:00 8/20/1975 Old Faithful 14:22:00 1:11:00 04:06 14:26 8/20/1975 Old Faithful 15:36:46 1:14:00 03:44 15:34 8/20/1975 Old Faithful 16:43:00 1:07:00 03:43 16:46 8/20/1975 Old Faithful 17:58:00 1:15:00 02:00 17:54 8/20/1975 Old Faithful 18:55:00 0:57:00 04:54 18:48 8/20/1975 Old Faithful 20:09:00 1:14:00 01:56 20:11 8/20/1975 Old Faithful 20:57:00 0:48:00 04:23 20:58 8/20/1975 Old Faithful 22:17:00 1:19:00 01:44 22:12 8/20/1975 Old Faithful 23:06:00 0:49:00 04:46 8/20/1975 Artemisia 9:04:00 8/20/1975 Atomizer 15:27:00 minor d<1m 8/20/1975 Atomizer 15:32:00 maj d>10m w/lng stm ph 8/20/1975 Beehive's Indicator 7:24:00 8/20/1975 Beehive's Indicator 17:05:00 8/20/1975 Castle 14:40:00 8/20/1975 Grand 11:18:00 8/20/1975 Grand 18:48:00 3B 8/20/1975 Great Fountain 12:41:00 VR 8/20/1975 Riverside 12:01:00 VR 8/20/1975 Riverside 17:30:00 8/20/1975 Rocket 14:43:00 8/20/1975 Round 14:53:00 8/21/1975 Old Faithful 0:19:00 1:13:00 02:14 8/21/1975 Old Faithful 1:15:00 0:56:00 04:49 8/21/1975 Old Faithful 2:39:00 1:24:00 03:39 8/21/1975 Old Faithful 3:44:00 1:05:00 04:26 8/21/1975 Old Faithful 4:53:00 1:09:00 01:49 8/21/1975 Old Faithful 5:45:00 0:52:00 04:32 8/21/1975 Old Faithful 7:05:00 1:20:00 01:57 8/21/1975 Old Faithful 7:50:00 0:45:00 04:43 7:54 8/21/1975 Old Faithful 9:14:00 1:24:00 01:47 9:06 8/21/1975 Old Faithful 10:02:00 0:48:00 04:40 10:01 8/21/1975 Old Faithful 11:17:00 1:15:00 02:11 11:18 8/21/1975 Old Faithful 12:15:00 0:58:00 04:55 12:07 8/21/1975 Old Faithful 13:33:00 1:18:00 02:03 13:30 8/21/1975 Old Faithful 14:21:00 0:48:00 03:55 14:24 8/21/1975 Old Faithful 15:45:00 1:24:00 01:47 15:34 8/21/1975 Old Faithful 16:36:00 0:51:00 04:31 16:32 8/21/1975 Old Faithful 17:59:00 1:23:00 04:01 17:51 8/21/1975 Old Faithful 19:10:00 1:11:00 04:12 19:11 8/21/1975 Old Faithful 20:31:00 1:21:00 04:01 20:23 8/21/1975 Old Faithful 21:35:00 1:03:00 04:22 21:43 8/21/1975 Old Faithful 23:06:00 1:31:00 04:07 8/21/1975 Beehive's Indicator 7:40:00 8/21/1975 Beehive's Indicator 10:23:00 ie 8/21/1975 Beehive's Indicator 19:50:00 8/21/1975 Castle 9:46:00 8/21/1975 Castle 19:12:00 8/21/1975 Crystal ?8:27:00 8/21/1975 Depression 13:20:00 8/21/1975 Depression 19:12:00 ie 8/21/1975 Grand 10:41:00 8/21/1975 Grand 18:30:00 3B 8/21/1975 Great Fountain 8:45:00 8/21/1975 Great Fountain 16:18:00 8/21/1975 Lion 9:12:00 8/21/1975 Lion 11:43:00 ie 8/21/1975 Lion 12:01:00 ie 8/21/1975 Lion 13:23:00 8/21/1975 Lion 15:37:00 8/21/1975 Lion 15:42:00 8/21/1975 Lion 16:59:00 8/21/1975 North Goggles 9:09:00 8/21/1975 Old Tardy ?8:27:00 8/21/1975 Penta 16:30:00 ie 8/21/1975 Riverside xx:04:00 ie 8/21/1975 Riverside 10:29:00 8/21/1975 Round 18:45:00 8/22/1975 Old Faithful 0:20:00 1:15:00 02:09 8/22/1975 Old Faithful 1:09:00 0:49:00 04:42 8/22/1975 Old Faithful 2:27:00 1:18:00 01:49 8/22/1975 Old Faithful 3:21:00 0:54:00 04:37 8/22/1975 Old Faithful 4:32:00 1:11:00 04:15 8/22/1975 Old Faithful 5:52:00 1:19:00 03:59 8/22/1975 Old Faithful 7:04:00 1:13:00 03:46 8/22/1975 Old Faithful 8:10:00 1:06:00 04:20 8:14 8/22/1975 Old Faithful 9:23:00 1:13:00 01:43 9:22 8/22/1975 Old Faithful 10:08:00 0:45:00 04:11 10:10 8/22/1975 Old Faithful 11:28:00 1:20:00 01:54 11:20 8/22/1975 Old Faithful 12:17:00 0:49:00 04:28 12:18 8/22/1975 Old Faithful 13:32:00 1:15:00 01:51 13:32 8/22/1975 Old Faithful 14:19:00 0:47:00 04:38 14:22 8/22/1975 Old Faithful 15:53:00 1:34:00 01:46 15:35 8/22/1975 Old Faithful 16:33:00 0:40:00 04:48 16:40 8/22/1975 Old Faithful 17:50:00 1:17:00 03:52 17:50 8/22/1975 Old Faithful 19:01:00 1:11:00 04:17 19:00 8/22/1975 Old Faithful 20:18:00 1:17:00 01:51 20:14 8/22/1975 Old Faithful 21:06:00 0:48:00 04:28 21:05 8/22/1975 Old Faithful 22:18:00 1:12:00 03:29 22:22 8/22/1975 Old Faithful 23:24:00 1:06:00 01:59 23:28 8/22/1975 Beehive ~17:05:00 8/22/1975 Beehive's Indicator 13:50:00 8/22/1975 Castle 14:20:00 8/22/1975 Grand 11:58:00 8/22/1975 Grand 19:25:00 8/22/1975 Great Fountain 10:16:00 8/22/1975 Great Fountain 18:04:00 8/22/1975 Oblong 10:20:00 8/22/1975 Plate 19:33:00 8/22/1975 Riverside 9:15:00 8/22/1975 Riverside 14:45:00 ieVR 8/22/1975 Riverside 19:58:00 8/23/1975 Old Faithful 0:09:00 0:45:00 04:34 8/23/1975 Old Faithful 1:29:00 1:20:00 03:58 8/23/1975 Old Faithful 2:39:00 1:10:00 04:04 8/23/1975 Old Faithful 3:43:00 1:04:00 04:05 8/23/1975 Old Faithful 4:52:00 1:09:00 04:33 8/23/1975 Old Faithful 6:08:00 1:16:00 02:21 8/23/1975 Old Faithful 7:01:00 0:53:00 04:52 8/23/1975 Old Faithful 8:13:00 1:12:00 02:07 8:16 8/23/1975 Old Faithful 9:12:00 0:59:00 04:34 9:03 8/23/1975 Old Faithful 10:21:00 1:09:00 02:05 10:26 8/23/1975 Old Faithful 11:14:00 0:53:00 04:50 11:11 8/23/1975 Old Faithful 12:35:00 1:20:00 01:53 12:30 8/23/1975 Old Faithful 13:21:00 0:46:00 04:20 13:22 8/23/1975 Old Faithful 14:42:00 1:21:00 03:44 14:34 8/23/1975 Old Faithful 15:52:00 1:10:00 02:00 15:52 8/23/1975 Old Faithful 16:41:00 0:49:00 04:37 16:42 8/23/1975 Old Faithful 18:01:00 1:20:00 04:08 17:56 8/23/1975 Old Faithful 19:05:00 1:04:00 03:52 19:14 8/23/1975 Old Faithful 20:15:00 1:10:00 04:45 20:16 8/23/1975 Old Faithful 21:28:00 1:12:00 04:11 21:32 8/23/1975 Old Faithful 22:42:00 1:14:00 02:52 8/23/1975 Old Faithful 23:53:00 1:11:00 04:17 8/23/1975 Beehive 6:56:00 8/23/1975 Beehive 23:41:00 ie 8/23/1975 Beehive's Indicator 6:44:00 8/23/1975 Castle 9:35:00 8/23/1975 Castle 19:20:00 in steam phase 8/23/1975 Grand 10:46:00 3B 8/23/1975 Grand 18:43:00 8/23/1975 Great Fountain 10:44:00 P=5m 8/23/1975 Great Fountain 20:11:00 8/23/1975 Riverside 12:34:00 8/23/1975 Riverside 18:39:00 8/24/1975 Old Faithful 1:03:00 1:09:00 03:27 8/24/1975 Old Faithful 2:21:00 1:18:00 04:32 8/24/1975 Old Faithful 3:42:00 1:21:00 02:02 8/24/1975 Old Faithful 4:36:00 0:55:00 04:26 8/24/1975 Old Faithful 5:52:00 1:16:00 01:55 8/24/1975 Old Faithful 6:46:00 0:54:00 04:31 8/24/1975 Old Faithful 7:59:00 1:13:00 04:18 8:02 8/24/1975 Old Faithful 9:12:00 1:13:00 02:00 9:12 8/24/1975 Old Faithful 10:03:00 0:51:00 04:49 10:04 8/24/1975 Old Faithful 11:19:00 1:16:00 01:56 11:20 8/24/1975 Old Faithful 12:11:00 0:52:00 04:30 12:06 8/24/1975 Old Faithful 13:24:00 1:13:00 02:10 13:26 8/24/1975 Old Faithful 14:40:00 1:16:00 04:34 14:16 8/24/1975 Old Faithful 15:59:00 1:19:00 01:47 15:56 8/24/1975 Old Faithful 16:48:00 1:02:00 04:38 16:46 8/24/1975 Old Faithful 18:13:00 1:25:00 01:49 18:02 8/24/1975 Old Faithful 18:54:00 0:41:00 04:33 19:02 8/24/1975 Old Faithful 20:14:00 1:20:00 01:54 20:10 8/24/1975 Old Faithful 21:07:00 0:53:00 05:06 21:02 8/24/1975 Old Faithful 22:27:00 1:20:00 01:52 8/24/1975 Old Faithful 23:09:00 0:41:00 04:40 8/24/1975 Beehive 12:19:00 8/24/1975 Beehive's Indicator 19:51:00 ie d>45m 8/24/1975 Castle 14:58:00 8/24/1975 Daisy ~12:45:00 ie "early morning, steam" 8/24/1975 Depression 14:17:00 8/24/1975 Grand 9:30:30 2B 8/24/1975 Grand 17:15:00 8/24/1975 Great Fountain 14:24:00 8/24/1975 Great Fountain 23:32:00 P=6m 8/24/1975 Grotto Fountain 9:33:00 8/24/1975 Oblong 14:05:00 8/24/1975 Penta 10:27:00 8/24/1975 Riverside 11:46:00 8/24/1975 Riverside ~17:15:00 8/24/1975 Riverside 22:36:00 8/24/1975 Round 7:12:00 8/24/1975 Round 12:07:00 8/24/1975 White Dome 22:45:00 8/24/1975 White Dome 23:05:00 8/24/1975 White Dome 23:46:00 8/25/1975 Old Faithful 0:32:00 1:23:00 01:51 8/25/1975 Old Faithful 1:24:30 0:52:00 long 8/25/1975 Old Faithful 2:36:00 1:12:00 01:54 8/25/1975 Old Faithful 3:29:00 0:52:00 04:25 8/25/1975 Old Faithful 4:53:00 1:25:00 01:47 8/25/1975 Old Faithful 5:33:00 0:40:00 04:43 8/25/1975 Old Faithful 6:59:00 1:26:00 01:47 8/25/1975 Old Faithful 7:41:00 0:42:00 04:22 8/25/1975 Old Faithful 9:00:00 1:19:00 01:58 8/25/1975 Old Faithful 9:46:00 0:45:00 04:54 8/25/1975 Old Faithful 11:09:00 1:23:00 01:45 10:50 8/25/1975 Old Faithful 11:52:00 1:23:00 04:17 11:58 8/25/1975 Old Faithful 13:12:00 1:20:00 01:43 13:06 8/25/1975 Old Faithful 13:54:00 0:42:00 04:53 13:58 8/25/1975 Old Faithful 15:10:00 1:16:00 01:45 15:08 8/25/1975 Old Faithful 16:01:00 0:51:00 04:48 15:58 8/25/1975 Old Faithful 17:20:00 1:19:00 03:30 17:17 8/25/1975 Old Faithful 18:28:00 1:08:00 04:00 18:30 8/25/1975 Old Faithful 19:49:00 1:21:00 ~03:30 19:40 8/25/1975 Old Faithful 20:57:00 1:08:00 03:51 20:58 8/25/1975 Old Faithful 22:03:00 1:07:00 04:12 8/25/1975 Old Faithful 23:20:00 1:17:00 01:58 8/25/1975 Beehive 21:33:00 8/25/1975 Beehive's Indicator 8:28:00 d=57m 8/25/1975 Castle 0:06:00 8/25/1975 Castle 9:28:00 8/25/1975 Castle 18:48:00 "minor,4mwtr,splsh,no stm" 8/25/1975 Flood 16:42:00 8/25/1975 Grand 0:23:00 "B1,8m52,P1=36,B2=39" 8/25/1975 Grand 0:23:00 "P2=48,B3=34,P3=74" 8/25/1975 Grand 0:23:00 "B4=31,d=13m11" 8/25/1975 Grand 8:13:00 2B 8/25/1975 Grand 15:48:00 VR 4B 8/25/1975 Grand 23:21:00 3B 8/25/1975 Great Fountain 8:09:00 8/25/1975 Great Fountain 16:19:00 8/25/1975 Lion 13:13:00 8/25/1975 Oblong 14:22:00 8/25/1975 Riverside 10:31:00 8/25/1975 Riverside 16:04:00 8/25/1975 Riverside ~21:25:00 "S.M., R.A.H." 8/25/1975 Spa 16:24:00 8/25/1975 Turban 0:23:00 15s before Grand 8/25/1975 Uncertain 0:28:00 ie 8/25/1975 West Flood 16:40:00 8/26/1975 Old Faithful 0:14:00 0:54:00 04:40 8/26/1975 Old Faithful 1:23:00 1:09:00 03:48 8/26/1975 Old Faithful 2:38:00 1:16:00 03:54 8/26/1975 Old Faithful 3:53:00 1:15:00 01:37 8/26/1975 Old Faithful 4:35:00 0:42:00 04:56 8/26/1975 Old Faithful 6:05:00 1:31:00 01:56 8/26/1975 Old Faithful 6:49:00 0:44:00 04:30 8/26/1975 Old Faithful 8:00:00 1:11:00 02:12 8:04 8/26/1975 Old Faithful 8:49:00 0:49:00 04:05 8:52 8/26/1975 Old Faithful 9:57:00 1:08:00 04:13 10:00 8/26/1975 Old Faithful 11:04:00 1:07:00 04:34 11:10 8/26/1975 Old Faithful 12:25:00 1:21:00 03:49 12:19 8/26/1975 Old Faithful 13:46:00 1:21:00 02:30 13:38 8/26/1975 Old Faithful 14:32:00 0:46:00 04:46 14:38 8/26/1975 Old Faithful 15:55:00 1:23:00 02:02 15:48 8/26/1975 Old Faithful 16:40:00 0:45:00 04:56 16:44 8/26/1975 Old Faithful 17:57:00 1:17:00 01:58 17:54 8/26/1975 Old Faithful 18:46:00 1:19:00 04:44 18:46 8/26/1975 Old Faithful 20:01:00 1:15:00 03:48 20:02 8/26/1975 Old Faithful 21:11:00 1:10:00 03:50 21:10 8/26/1975 Old Faithful 22:18:00 1:06:00 04:10 8/26/1975 Old Faithful 23:36:00 1:18:00 04:09 8/26/1975 Beehive 21:24:00 8/26/1975 Beehive's Indicator 8:31:00 ie 8/26/1975 Castle 6:55:00 ie minor 8/26/1975 Castle 8:50:00 ie 8/26/1975 Castle 18:52:00 8/26/1975 Grand 7:21:00 ie 8/26/1975 Grand 15:23:00 ie 8/26/1975 Grand 23:03:00 8/26/1975 Great Fountain 0:17:00 8/26/1975 Great Fountain 9:12:00 ie 8/26/1975 Great Fountain 17:07:00 8/26/1975 Lion 18:30:00 8/26/1975 Lion 23:21:00 8/26/1975 Oblong 20:11:00 8/26/1975 Riverside ~8:00:00 8/26/1975 Riverside 19:30:00 VR 8/26/1975 Riverside 19:33:00 actually 8/26/1975 Riverside 19:35:00 8/27/1975 Old Faithful 0:50:00 1:14:00 01:55 8/27/1975 Old Faithful 1:40:00 0:50:00 04:49 8/27/1975 Old Faithful 2:59:00 1:19:00 01:57 8/27/1975 Old Faithful 4:01:00 1:02:00 04:14 8/27/1975 Old Faithful 5:14:00 1:13:00 01:46 8/27/1975 Old Faithful 6:17:00 1:04:00 04:34 8/27/1975 Old Faithful 7:34:00 1:16:00 01:57 8/27/1975 Old Faithful 8:29:00 0:55:00 04:28 8:24 8/27/1975 Old Faithful 9:44:00 1:15:00 03:51 9:44 8/27/1975 Old Faithful 10:59:00 1:15:00 04:08 10:56 8/27/1975 Old Faithful 12:03:00 1:04:00 04:11 12:11 8/27/1975 Old Faithful 13:12:00 1:09:00 04:29 13:16 8/27/1975 Old Faithful 14:33:00 1:21:00 ~02:10 14:26 8/27/1975 Old Faithful 15:19:00 0:46:00 05:01 15:24 8/27/1975 Old Faithful 16:34:00 1:14:00 01:45 16:34 8/27/1975 Old Faithful 17:20:00 0:44:00 04:50 17:22 8/27/1975 Old Faithful 18:34:00 1:14:00 02:21 18:36 8/27/1975 Old Faithful 19:42:00 1:07:00 04:35 19:26 8/27/1975 Old Faithful 20:51:00 1:09:00 04:06 20:58 8/27/1975 Old Faithful 22:02:00 1:11:00 03:40 22:03 8/27/1975 Old Faithful 23:25:00 1:22:00 04:29 8/27/1975 Artemisia 9:54:00 8/27/1975 Beehive's Indicator 13:46:00 ie 8/27/1975 Castle 12:54:00 8/27/1975 Castle 13:06:00 ie 8/27/1975 Castle 22:38:00 8/27/1975 Depression 12:59:00 8/27/1975 Grand 7:04:00 ie 8/27/1975 Grand 14:55:00 3B 8/27/1975 Grand 22:50:00 3B 8/27/1975 Great Fountain 9:44:00 8/27/1975 Great Fountain 19:06:00 overflow for 64m 8/27/1975 Lion 8:56:00 8/27/1975 Lion 9:57:00 nervous spell 8/27/1975 Riverside 11:44:00 8/27/1975 Riverside 23:00:00 ie 8/27/1975 Round 10:22:00 8/27/1975 Spa 12:23:00 "end 13:04,10-20'" 8/27/1975 Uncertain ~22:3000 8/27/1975 White Dome 17:30:00 8/27/1975 White Dome 17:51:00 8/27/1975 White Dome 19:26:00 minor 8/28/1975 Old Faithful 0:32:00 1:07:00 04:45 8/28/1975 Old Faithful 1:55:00 1:24:00 short 8/28/1975 Old Faithful 2:42:00 0:47:00 04:26 8/28/1975 Old Faithful 3:59:00 1:17:00 04:16 8/28/1975 Old Faithful 5:03:00 1:04:00 03:51 8/28/1975 Old Faithful 6:23:00 1:20:00 01:53 8/28/1975 Old Faithful 7:11:00 0:48:00 04:41 8/28/1975 Old Faithful 8:34:00 1:23:00 03:50 8:26 8/28/1975 Old Faithful 9:22:00 0:48:00 05:00 9:44 8/28/1975 Old Faithful 10:41:00 1:19:00 01:53 10:38 8/28/1975 Old Faithful 11:33:00 0:52:00 04:45 11:30 8/28/1975 Old Faithful 12:54:00 1:21:00 01:53 12:48 8/28/1975 Old Faithful 13:44:00 0:50:00 04:24 13:42 8/28/1975 Old Faithful 14:59:00 1:15:00 02:43 14:59 8/28/1975 Old Faithful 15:59:00 1:00:00 04:20 15:54 8/28/1975 Old Faithful 17:18:00 1:20:00 01:53 17:14 8/28/1975 Old Faithful 18:15:00 0:57:00 04:30 18:06 8/28/1975 Old Faithful 19:34:00 1:19:00 01:49 19:30 8/28/1975 Old Faithful 20:23:00 0:49:00 04:20 20:20 8/28/1975 Old Faithful 21:34:00 1:10:00 04:04 21:35 8/28/1975 Old Faithful 22:46:00 1:11:00 04:18 8/28/1975 Artemisia 8:15:00 VR 8/28/1975 Artemisia 20:31:00 8/28/1975 Beehive 9:33:00 8/28/1975 Castle 7:46:00 8/28/1975 Castle 17:51:00 8/28/1975 Grand 7:52:00 2B 8/28/1975 Grand 17:19:00 3B 8/28/1975 Great Fountain 12:07:00 8/28/1975 Great Fountain 21:48:00 8/28/1975 Penta 7:03:00 ie 8/28/1975 Riverside 9:46:00 8/28/1975 Riverside 15:48:00 8/29/1975 Old Faithful 0:01:00 1:15:00 02:07 Duration Preplay Height Prediction 8/29/1975 Old Faithful 0:47 0:46 4:46 8/29/1975 Old Faithful 2:02 1:15 3:39 8/29/1975 Old Faithful 3:17 1:15 2:04 8/29/1975 Old Faithful 4:01 0:44 4:31 8/29/1975 Old Faithful 5:12 1:11 1:59 8/29/1975 Old Faithful 6:04 0:52 4:21 8/29/1975 Old Faithful 7:26 1:22 4:02 8/29/1975 Old Faithful 8:35 1:09 2:30 8:38 8/29/1975 Old Faithful 9:30 0:55 4:00 9:27 8/29/1975 Old Faithful 10:47 1:17 3:58 10:42 8/29/1975 Old Faithful 11:58 1:11 2:30 11:59 8/29/1975 Old Faithful 12:41 0:43 4:30 12:50 8/29/1975 Old Faithful 13:59 1:18 1:57 13:56 8/29/1975 Old Faithful 14:46 0:47 4:23 14:48 8/29/1975 Old Faithful 16:06 1:20 1:47 15:58 8/29/1975 Old Faithful 16:52 0:46 4:06 16:53 8/29/1975 Old Faithful 18:19 1:27 1:59 18:04 8/29/1975 Old Faithful 19:12 0:53 4:27 19:09 8/29/1975 Old Faithful 20:26 1:14 2:07 20:28 8/29/1975 Old Faithful 21:14 0:48 4:12 21:16 8/29/1975 Old Faithful 22:32 1:18 1:50 8/29/1975 Old Faithful 23:18 0:46 4:31 8/29/1975 Artemisia 8:45 8/29/1975 Castle 12:20 ie in water phase 8/29/1975 Grand 9:50 (1 burst) 8/29/1975 Grand 18:15 ie (2+bursts) 8/29/1975 Great Fountain 6:50 ie 8/29/1975 Lion 10:42 8/29/1975 Lion 12:43 8/29/1975 Lion 17:47 8/29/1975 North Goggles 7:48 8/29/1975 Riverside 8:27 8/29/1975 Riverside 14:25 8/29/1975 Riverside 19:58 VR 8/30/1975 Old Faithful 0:31 1:13 3:58 8/30/1975 Old Faithful 1:37 1:06 4:09 8/30/1975 Old Faithful 2:46 1:09 1:53 8/30/1975 Old Faithful 3:38 0:52 4:44 8/30/1975 Old Faithful 5:03 1:25 3:46 8/30/1975 Old Faithful 6:16 1:13 4:04 8/30/1975 Old Faithful 7:35 1:19 4:48 7:28 8/30/1975 Old Faithful 8:52 1:17 1:45 8:50 8/30/1975 Old Faithful 9:36 0:44 4:20 9:40 8/30/1975 Old Faithful 10:58 1:22 1:58 10:50 8/30/1975 Old Faithful 11:45 0:47 4:10 11:48 8/30/1975 Old Faithful 13:10 1:25 2:01 12:58 8/30/1975 Old Faithful 13:57 0:47 4:45 14:00 8/30/1975 Old Faithful 15:22 1:25 2:05 15:14 8/30/1975 Old Faithful 16:10 0:48 4:10 16:12 8/30/1975 Old Faithful 17:36 1:26 1:51 17:22 8/30/1975 Old Faithful 18:24 0:48 4:58 18:23 8/30/1975 Old Faithful 19:38 1:14 2:03 19:38 8/30/1975 Old Faithful 20:31 0:53 4:37 20:28 8/30/1975 Old Faithful 21:46 1:15 1:49 8/30/1975 Old Faithful 22:34 0:48 4:31 8/30/1975 Old Faithful 23:48 1:14 2:34 8/30/1975 Beehive ~15:08 8/30/1975 Beehive's Indicator 12:30 ie 8/30/1975 Castle 8:10 8/30/1975 Castle 17:12 8/30/1975 Depression 20:18 8/30/1975 Grand 8:52 ie 8/30/1975 Grand 16:45 4 B 8/30/1975 Great Fountain 20:45 VR 8/30/1975 Pear 13:36 8/30/1975 Pear 14:04 8/30/1975 Pear 14:13 8/30/1975 Pear 14:42 8/30/1975 Riverside 13:19 8/30/1975 Riverside 18:55 VR 8/30/1975 Spiteful 14:55 ne 8/30/1975 Spiteful 15:40 8/30/1975 White Dome 9:52 8/31/1975 Old Faithful 0:38 0:50 4:34 8/31/1975 Old Faithful 2:03 1:25 3:55 8/31/1975 Old Faithful 3:20 1:17 4:23 8/31/1975 Old Faithful 4:25 1:05 4:18 8/31/1975 Old Faithful 5:41 1:16 2:08 8/31/1975 Old Faithful 6:27 0:46 4:57 8/31/1975 Old Faithful 7:41 1:14 2:15 7:42 8/31/1975 Old Faithful 8:33 0:52 4:00 8:32 8/31/1975 Old Faithful 9:47 1:14 3:41 9:46 8/31/1975 Old Faithful ~10:49 ~1:02 ~4:20 10:56 8/31/1975 Old Faithful 12:07 ~0:78 2:36 12:02 8/31/1975 Old Faithful 12:58 0:51 4:26 13:00 8/31/1975 Old Faithful 14:12 1:14 2:19 14:13 8/31/1975 Old Faithful 15:07 0:55 5:00 15:04 8/31/1975 Old Faithful 16:30 1:23 2:01 16:22 8/31/1975 Old Faithful 17:17 0:47 4:08 17:20 8/31/1975 Old Faithful 18:42 1:25 1:58 18:29 8/31/1975 Old Faithful 19:31 0:49 4:39 19:32 8/31/1975 Old Faithful 20:47 1:16 1:37 20:47 8/31/1975 Old Faithful 21:37 0:50 4:39 8/31/1975 Old Faithful 22:54 1:17 1:49 8/31/1975 Old Faithful 23:41 0:47 4:39 8/31/1975 Beehive's Indicator 8:01 ie 8/31/1975 Beehive's Indicator 10:29 8/31/1975 Beehive's Indicator 13:34 8/31/1975 Castle 12:00 8/31/1975 Castle 21:30 ie 8/31/1975 Depression 20:39 8/31/1975 Dome 8:10 active 8/31/1975 Grand 8:05 ie 8/31/1975 Grand 15:56 2b 8/31/1975 Grand 22:40 2b 8/31/1975 Great Fountain 12:45 VR 8/31/1975 Great Fountain 21:18 overflow 71min 8/31/1975 Grotto Fountain 20:00 8/31/1975 Oblong 12:56 1300 ie 8/31/1975 Penta 14:21 ie 8/31/1975 Riverside 11:36 8/31/1975 Riverside 16:57 VR 9/1/1975 Old Faithful 0:58 1:17 2:00 9/1/1975 Old Faithful 1:46 0:48 4:42 9/1/1975 Old Faithful 3:00 1:14 1:49 9/1/1975 Old Faithful 4:01 1:01 4:45 9/1/1975 Old Faithful 5:19 1:18 4:01 9/1/1975 Old Faithful 6:31 1:12 4:30 9/1/1975 Old Faithful 7:47 1:16 3:47 9/1/1975 Old Faithful 8:56 1:09 3:55 8:57 9/1/1975 Old Faithful 10:07 1:11 1:52 10:08 9/1/1975 Old Faithful 10:56 0:49 5:01 9/1/1975 Old Faithful 12:10 1:14 1:38 12:11 9/1/1975 Old Faithful 12:58 0:48 4:20 12:57 9/1/1975 Old Faithful 14:20 1:22 1:43 14:11 9/1/1975 Old Faithful 15:06 0:46 4:26 15:07 9/1/1975 Old Faithful 16:18 1:12 3:44 16:21 9/1/1975 Old Faithful 17:25 1:07 1:53 17:28 9/1/1975 Old Faithful 18:11 0:46 4:42 18:15 9/1/1975 Old Faithful 19:27 1:16 3:40 19:27 9/1/1975 Old Faithful 20:37 1:10 4:15 20:37 9/1/1975 Old Faithful 21:50 9/1/1975 Old Faithful 23:49 3:12 9/1/1975 Artemisia 10:23 9/1/1975 Beehive's Indicator 8:21 9/1/1975 Castle 7:01 9/1/1975 Castle 16:07 ie 9/1/1975 Depression 7:11 9/1/1975 Grand 10:06 "2b waves 22s Turb before Grd7s B1=10m37s,P1=55s B2=34s" 9/1/1975 Grand 18:24 ie 9/1/1975 Great Fountain 16:15 VR 9/1/1975 Grotto Fountain 16:07 9/1/1975 North Goggles 20:10 9/1/1975 Oblong 8:36 dur=8m 9/1/1975 Riverside 9:55 9/1/1975 Riverside 15:21 9/1/1975 Riverside 21:18 9/1/1975 Spiteful 9:08 9/2/1975 Old Faithful 1:02 1:13 1:55 9/2/1975 Old Faithful 1:43 0:41 4:52 9/2/1975 Old Faithful 3:07 1:24 1:57 9/2/1975 Old Faithful 3:55 0:48 4:23 9/2/1975 Old Faithful 5:05 1:10 3:45 9/2/1975 Old Faithful 6:20 1:15 3:46 9/2/1975 Old Faithful 7:43 1:23 1:45 9/2/1975 Old Faithful 8:33 0:50 4:31 8:30 9/2/1975 Old Faithful 9:43 1:10 1:34 9:48 9/2/1975 Old Faithful 10:32 0:49 4:29 10:28 9/2/1975 Old Faithful 11:55 1:23 1:52 11:47 9/2/1975 Old Faithful 12:56 1:01 4:17 12:42 9/2/1975 Old Faithful 14:07 1:11 3:35 9/2/1975 Old Faithful 15:26 1:19 4:23 15:18 9/2/1975 Old Faithful 16:46 1:20 2:00 16:38 9/2/1975 Old Faithful 17:33 0:47 4:33 17:36 9/2/1975 Old Faithful 18:45 1:12 1:55 18:48 9/2/1975 Old Faithful 19:43 0:58 4:30 9/2/1975 Beehive 13:45 9/2/1975 Beehive's Indicator 8:29 9/2/1975 Castle 11:30 ie 9/2/1975 Castle 20:42 ie 9/2/1975 Fountain 12:35 5 feet 9/2/1975 Grand 9:43 ie 9/2/1975 Grand 18:55 3b 9/2/1975 Great Fountain 11:06 9/2/1975 Great Fountain 19:41 VR 9/2/1975 Lion 10:32 9/2/1975 Lion 15:13 9/2/1975 Lion 17:08 ie 9/2/1975 Lion 18:23 ie 9/2/1975 North Goggles 14:47 ie 9/2/1975 Oblong 9:41 9/2/1975 Riverside 8:57 9/2/1975 Riverside 14:26 9/3/1975 Old Faithful 0:04 9/3/1975 Old Faithful 1:28 1:24 1:56 9/3/1975 Old Faithful 2:10 0:42 4:07 9/3/1975 Old Faithful 3:35 1:25 1:43 9/3/1975 Old Faithful 4:14 0:39 4:38 9/3/1975 Old Faithful 5:29 1:15 3:25 9/3/1975 Old Faithful 6:37 1:08 S 9/3/1975 Old Faithful 7:23 0:46 4:47 9/3/1975 Old Faithful 8:37 1:14 3:40 8:40 9/3/1975 Old Faithful 9:27 0:50 4:18 9:47 9/3/1975 Old Faithful 10:40 1:13 2:28 10:40 9/3/1975 Old Faithful 11:28 0:48 4:00 11:32 9/3/1975 Old Faithful 12:43 1:15 2:19 12:38 9/3/1975 Old Faithful 13:43 1:00 4:23 13:36 9/3/1975 Old Faithful 14:51 1:08 3:31 14:58 9/3/1975 Old Faithful 15:54 1:03 1:38 16:01 9/3/1975 Old Faithful 16:41 0:47 4:20 16:40 9/3/1975 Old Faithful 17:52 1:11 3:40 9/3/1975 Old Faithful 19:02 1:10 2:07 19:02 9/3/1975 Old Faithful 19:54 0:52 4:09 19:52 9/3/1975 Old Faithful 21:06 9/3/1975 Old Faithful 23:25 9/3/1975 Beehive 17:43 D=3:50m 9/3/1975 Beehive's Indicator 9:15 ie 9/3/1975 Castle 5:03 ie 9/3/1975 Castle 16:00 9/3/1975 Fountain 14:40 ie 9/3/1975 Grand 11:20 "D=12m49 B1 9m36 P1 41, B2 39 P2 53, B3 60" 9/3/1975 Great Fountain 13:40 9/3/1975 Grotto Fountain 7:15 ie 9/3/1975 Lion 8:17 9/3/1975 Lion 11:35 ie 9/3/1975 Lion 13:19 9/3/1975 North Goggles 9:13 9/3/1975 Oblong 10:18 9/3/1975 Riverside 7:29 9/3/1975 Riverside 13:15 VR 9/3/1975 Riverside 19:00 VR 9/3/1975 Round 7:08 9/3/1975 Round 9:51 9/3/1975 Round 12:28 9/3/1975 South Grotto Fountain 7:15 ie 9/3/1975 Spiteful 6:55 9/4/1975 Old Faithful 0:45 1:20 1:46 9/4/1975 Old Faithful 1:27 0:45 4:27 9/4/1975 Old Faithful 2:45 0:42 1:52 9/4/1975 Old Faithful 3:33 1:18 4:17 9/4/1975 Old Faithful 4:46 0:48 1:51 9/4/1975 Old Faithful 5:47 1:13 4:42 9/4/1975 Old Faithful 6:58 1:01 3:41 9/4/1975 Old Faithful 8:06 1:11 1:41 9/4/1975 Old Faithful 9:00 1:08 4:24 8:54 9/4/1975 Old Faithful 10:15 0:54 3:21 10:15 9/4/1975 Old Faithful 11:23 1:15 2:01 11:25 9/4/1975 Old Faithful 12:13 1:08 ~4:10 12:12 9/4/1975 Old Faithful 13:24 0:50 3:54 13:26 9/4/1975 Old Faithful 14:32 1:11 3:57 14:36 9/4/1975 Old Faithful 15:49 1:08 2:05 15:44 9/4/1975 Old Faithful 16:45 1:17 4:35 16:40 9/4/1975 Old Faithful 18:03 0:56 1:56 18:00 9/4/1975 Old Faithful 18:48 1:18 4:44 18:54 9/4/1975 Beehive's Indicator 10:57 to 11:32 9/4/1975 Castle 10:42 11:10ie (steam phase) 9/4/1975 Grand 12:35 VR 2bursts 9/4/1975 Grand 20:24 9/4/1975 Great Fountain 14:56 VR 9/4/1975 Grotto Fountain 6:24 9/4/1975 Grotto Rocket 6:29 to 13:07 9/4/1975 Oblong 11:49 9/4/1975 Penta 10:11 to 10:34 9/4/1975 Riverside 11:27 VR 9/4/1975 Riverside 17:25 VR 9/4/1975 Round 5:52 9/4/1975 Round 16:38 9/4/1975 Sawmill 10:44 to 11:13 9/5/1975 Old Faithful 0:11 9/5/1975 Old Faithful 1:08 0:57 4:56 9/5/1975 Old Faithful 2:21 1:13 2:26 9/5/1975 Old Faithful 3:10 0:49 4:42 9/5/1975 Old Faithful 4:32 1:22 2:18 9/5/1975 Old Faithful 5:24 0:52 4:18 9/5/1975 Old Faithful 6:37 1:13 4:10 9/5/1975 Old Faithful 7:45 1:08 3:15 9/5/1975 Old Faithful 8:47 1:02 4:17 8:55 9/5/1975 Old Faithful 10:03 1:16 4:05 10:00 9/5/1975 Old Faithful 11:09 1:06 4:08 11:14 9/5/1975 Old Faithful 12:23 1:14 1:54 12:21 9/5/1975 Old Faithful 13:09 0:46 ~4:24 13:12 9/5/1975 Old Faithful 14:19 1:10 3:07 14:24 9/5/1975 Old Faithful 15:35 1:16 3:55 15:32 9/5/1975 Old Faithful 16:42 1:07 3:35 16:48 9/5/1975 Old Faithful 17:58 1:16 4:00 17:52 9/5/1975 Old Faithful 19:07 1:09 1:50 19:10 9/5/1975 Old Faithful 19:54 0:47 ~4:00 19:58 9/5/1975 Castle 8:30 9/5/1975 Castle 17:40 ie 9/5/1975 Grand 13:22 (2 bursts) 9/5/1975 Lion 18:03 9/5/1975 Riverside 15:45 VR 9/6/1975 Old Faithful 0:13 9/6/1975 Old Faithful 1:29 1:16 3:37 9/6/1975 Old Faithful 2:36 1:07 4:06 9/6/1975 Old Faithful 3:40 1:04 2:08 9/6/1975 Old Faithful 4:30 0:50 4:35 9/6/1975 Old Faithful 5:50 1:20 4:23 9/6/1975 Old Faithful 7:04 1:14 2:09 9/6/1975 Old Faithful 8:00 0:56 4:40 7:56 9/6/1975 Old Faithful 9:14 1:14 1:50 9:16 9/6/1975 Old Faithful 9:59 0:45 4:14 10:02 9/6/1975 Old Faithful 11:11 1:12 2:34 11:12 9/6/1975 Old Faithful 12:10 0:59 4:23 12:04 9/6/1975 Old Faithful 13:29 1:19 2:08 13:26 9/6/1975 Old Faithful 14:21 0:52 4:30 14:20 9/6/1975 Old Faithful 15:45 1:24 4:05 15:36 9/6/1975 Old Faithful 16:52 1:07 4:00 16:57 9/6/1975 Old Faithful 18:10 1:18 1:51 18:04 9/6/1975 Old Faithful 19:01 0:51 4:25 18:58 9/6/1975 Beehive 13:30 9/6/1975 Castle 11:50 9/6/1975 Depression 20:02 9/6/1975 Fountain 16:31 9/6/1975 Grand 12:22 3B 9/6/1975 Grand 19:34 3B 9/6/1975 Great Fountain 20:15 VR 9/6/1975 Grotto Fountain 11:15 9/6/1975 Lion 10:10 ie 9/6/1975 Lion 12:48 ie 9/6/1975 Lion 14:44 9/6/1975 Riverside 14:27 9/6/1975 Riverside 19:58 9/6/1975 Uncertain 11:47 9/7/1975 Old Faithful 0:43 1:18 1:43 9/7/1975 Old Faithful 1:35 0:52 4:21 9/7/1975 Old Faithful 2:52 1:17 1:57 9/7/1975 Old Faithful 3:39 0:47 L 9/7/1975 Old Faithful 4:51 1:12 2:05 9/7/1975 Old Faithful 5:43 0:52 4:47 9/7/1975 Old Faithful 6:55 1:12 4:09 9/7/1975 Old Faithful 8:07 1:12 4:45 8:08 9/7/1975 Old Faithful 9:26 1:19 2:54 9:22 9/7/1975 Old Faithful 10:08 0:42 4:43 10:39 9/7/1975 Old Faithful 11:30 1:22 2:52 11:16 9/7/1975 Old Faithful 12:13 0:43 ~3:00 12:26or?? 9/7/1975 Old Faithful 13:34 1:21 1:52 13:22-? 9/7/1975 Old Faithful 14:19 0:45 4:20 14:24 9/7/1975 Old Faithful 15:35 1:16 3:54 15:34 9/7/1975 Old Faithful 16:44 1:09 2:17 16:44 9/7/1975 Old Faithful 17:28 0:44 4:35 17:36 9/7/1975 Old Faithful 18:44 1:16 3:51 18:43 9/7/1975 Beehive 17:52 9/7/1975 Bulger 17:58 9/7/1975 Bulger 18:12 9/7/1975 Castle 6:30 9/7/1975 Castle 16:05 9/7/1975 Grand 10:41 2 bursts 9/7/1975 Grand 18:12 "d1=10:26,d2=35" 9/7/1975 Great Fountain 15:41 9/7/1975 Grotto 17:40 9/7/1975 North Goggles 15:32 ie 9/7/1975 Oblong 11:49 9/7/1975 Oblong 18:20 9/7/1975 Riverside 7:29 9/7/1975 Riverside 13:01 9/7/1975 Riverside 19:03 9/7/1975 Round 9:56 9/7/1975 Spiteful 8:52 9/7/1975 Spiteful 9:21 9/7/1975 Spiteful 10:04 9/7/1975 Spiteful 10:48 9/7/1975 Vault 11:03 initial 9/7/1975 Vault 12:38 9/7/1975 Vault 13:46 9/7/1975 Vault 14:38 9/7/1975 Vault 16:14 9/8/1975 Old Faithful 1:00 0:54 4:52 9/8/1975 Old Faithful 2:15 1:15 1:50 9/8/1975 Old Faithful 3:00 0:45 5:03 9/8/1975 Old Faithful 4:12 1:12 3:36 9/8/1975 Old Faithful 5:25 1:13 4:24 9/8/1975 Old Faithful 6:36 1:11 4:19 9/8/1975 Old Faithful 7:43 1:07 3:40 7:50 9/8/1975 Old Faithful 8:52 1:09 3:45 8:52 9/8/1975 Old Faithful 10:09 1:17 3:51 10:02 9/8/1975 Old Faithful 11:12 1:03 4:02 11:15 9/8/1975 Old Faithful 12:28 1:16 2:24 12:24 9/8/1975 Old Faithful 13:18 0:50 4:34 13:20 9/8/1975 Old Faithful 14:41 1:23 1:52 15:32not typo 9/8/1975 Old Faithful 15:28 0:47 4:21 15:30 9/8/1975 Old Faithful 16:46 1:18 1:43 16:42 9/8/1975 Old Faithful 17:37 0:51 4:17 17:32 9/8/1975 Old Faithful 18:55 1:18 3:51 18:50 9/8/1975 Beehive's Indicator 9:02 9/8/1975 Bulger 9:40 9/8/1975 Castle 10:48 9/8/1975 Castle ~20:00-21:00 VR minor 9/8/1975 Depression 8:29 9/8/1975 Fountain 18:01 9/8/1975 Grand 9:44 "d1=9:40,d2=:30" 9/8/1975 Grand 17:13 VR 2 bursts 9/8/1975 Great Fountain 19:49 9/8/1975 Riverside 12:30 9/8/1975 Riverside 18:02 VR 9/8/1975 White Dome 8:24 9/9/1975 Old Faithful 1:30 4:45 9/9/1975 Old Faithful 2:39 1:09 3:58 9/9/1975 Old Faithful 3:53 1:14 4:09 9/9/1975 Old Faithful 5:08 1:15 L 9/9/1975 Old Faithful 6:29 1:21 3:50 9/9/1975 Old Faithful 7:39 1:10 1:54 9/9/1975 Old Faithful 8:22 0:43 4:33 9/9/1975 Old Faithful 9:41 1:19 1:57 9:36 9/9/1975 Old Faithful 10:26 0:45 4:01 10:30 9/9/1975 Old Faithful 11:45 1:19 1:43 11:38 9/9/1975 Old Faithful 12:39 0:54 4:37 12:32 9/9/1975 Old Faithful 13:59 1:20 1:46 13:54 9/9/1975 Old Faithful 14:48 0:49 4:33 14:46 9/9/1975 Old Faithful 16:04 1:16 4:11 16:03 9/9/1975 Old Faithful 17:16 1:12 4:15 17:17 9/9/1975 Beehive 23:00 VR ie 9/9/1975 Castle 10:50 9/9/1975 Castle 20:05 VR 9/9/1975 Fountain 7:15 VR ~30m duration 9/9/1975 Grand 8:37 9/9/1975 Grand 16:15 VR ie (3 B) 9/9/1975 Great Fountain 10:21 9/9/1975 Great Fountain 13:14 9/9/1975 Lion 9:03 ie 9/9/1975 Lion 12:18 9/9/1975 Riverside 10:55 9/9/1975 Riverside 16:20 VR 9/10/1975 Old Faithful 1:29 1:18 3:50 9/10/1975 Old Faithful 2:35 1:06 1:56 9/10/1975 Old Faithful 3:19 0:44 4:39 9/10/1975 Old Faithful 4:36 1:17 2:04 9/10/1975 Old Faithful 5:31 0:55 4:41 9/10/1975 Old Faithful 6:48 1:17 2:09 9/10/1975 Old Faithful 7:48 1:00 7:38 9/10/1975 Old Faithful 9:12 1:24 1:45 9/10/1975 Old Faithful 10:02 0:50 4:25 9:58 9/10/1975 Old Faithful 11:21 1:19 4:00 11:17 9/10/1975 Old Faithful 12:26 1:05 2:27 12:34 9/10/1975 Old Faithful 13:13 0:47 4:28 13:18 9/10/1975 Old Faithful 14:32 1:19 3:42 14:28 9/10/1975 Old Faithful 15:36 1:04 4:19 15:42 9/10/1975 Old Faithful 17:00 1:24 1:51 16:49 9/10/1975 Old Faithful 17:57 0:57 4:37 17:50 9/10/1975 Beehive 15:52 9/10/1975 Beehive's Indicator 9:21 ie 9/10/1975 Castle 14:23 9/10/1975 Depression 9:30 9/10/1975 Grand 7:30 9/10/1975 Grand 15:45 9/10/1975 Great Fountain 7:10 ie 9/10/1975 Great Fountain 13:40 9/10/1975 Great Fountain 22:01 9/10/1975 Oblong 9:50 9/10/1975 Oblong 16:40 9/10/1975 Penta 12:16 ie 9/10/1975 Riverside 9:21 9/10/1975 Riverside 14:57 VR 9/11/1975 Old Faithful 1:36 1:04 4:27 9/11/1975 Old Faithful 2:46 1:10 2:08 9/11/1975 Old Faithful 3:39 0:53 4:33 9/11/1975 Old Faithful 4:58 1:19 2:09 9/11/1975 Old Faithful 5:53 0:55 4:46 9/11/1975 Old Faithful 7:06 1:13 2:05 9/11/1975 Old Faithful 7:53 0:47 5:15 7:56 9/11/1975 Old Faithful 9:07 1:14 2 1/4 9:08 9/11/1975 Old Faithful 10:00 0:53 4:48 9:58 9/11/1975 Old Faithful 11:18 1:18 1:42 11:15 9/11/1975 Old Faithful 12:08 0:50 4:49 12:05 9/11/1975 Old Faithful 13:29 1:21 1:49 13:24 9/11/1975 Old Faithful 14:20 0:51 4:47 14:16 9/11/1975 Old Faithful 15:34 1:14 3:07 15:35 9/11/1975 Old Faithful 16:33 0:59 3:42 16:47 9/11/1975 Old Faithful 17:42 1:09 3:50 17:43 9/11/1975 Beehive 15:15 VR 9/11/1975 Beehive's Indicator 8:42 ie 9/11/1975 Beehive's Indicator 15:14 ie 9/11/1975 Castle 15:05 9/11/1975 Grand 14:11 9/11/1975 Great Fountain 14:10 VR 9/11/1975 Great Fountain 22:26 9/11/1975 Oblong 17:00 VR 9/11/1975 Riverside 8:04 9/11/1975 Riverside 13:30 9/12/1975 Old Faithful 1:01 1:21 2:07 9/12/1975 Old Faithful 1:42 0:41 4:48 9/12/1975 Old Faithful 3:02 1:20 2:04 9/12/1975 Old Faithful 3:47 0:45 4:36 9/12/1975 Old Faithful 5:03 1:16 4:02 9/12/1975 Old Faithful 6:11 1:08 2:02 9/12/1975 Old Faithful 7:08 0:57 4:34 9/12/1975 Old Faithful 8:23 1:15 ~3:48 8:24 9/12/1975 Old Faithful 9:29 1:06 3:56 9:33 9/12/1975 Old Faithful 10:36 1:07 4:56 10:41 9/12/1975 Old Faithful 11:43 1:07 1:45 11:48 9/12/1975 Old Faithful 12:28 0:45 4:25 12:30 9/12/1975 Old Faithful 13:46 1:18 1:54 13:43 9/12/1975 Old Faithful 14:34 0:48 4:32 14:33 9/12/1975 Old Faithful 15:57 1:23 1:36 15:49 9/12/1975 Old Faithful 16:42 0:45 4:18 16:38 9/12/1975 Castle 10:04 9/12/1975 Castle 19:30 ie 9/12/1975 Depression 8:39 9/12/1975 Grand 14:31 9/12/1975 Grand 22:48 VR 9/12/1975 Great Fountain 7:05 ie 9/12/1975 Lion 8:30 9/12/1975 Lion 10:28 ie 9/12/1975 Lion 12:16 9/12/1975 Lion 13:36 9/12/1975 Lion 14:59 9/12/1975 Lion 16:38 9/12/1975 Oblong 16:35 9/12/1975 Riverside 12:42 9/12/1975 Riverside 18:00 VR 9/12/1975 Spa 15:07 ~every 4 min 9/12/1975 Spa 15:53 40-50'major 9/12/1975 Spiteful 16:48 9/12/1975 Spiteful & Mortar 8:07 ie 9/12/1975 Vault 16:24 9/13/1975 Old Faithful 1:35 1:53 9/13/1975 Old Faithful 2:31 0:56 4:59 9/13/1975 Old Faithful 3:43 1:12 2:11 9/13/1975 Old Faithful 4:36 0:53 4:36 9/13/1975 Old Faithful 5:55 1:19 1:57 9/13/1975 Old Faithful 6:38 0:43 4:40 9/13/1975 Old Faithful 7:55 1:17 1:44 9/13/1975 Old Faithful 8:34 0:39 4:27 8:40 9/13/1975 Old Faithful 10:04 1:30 4:28 9:46 9/13/1975 Old Faithful 11:17 1:13 2:07 11:18 9/13/1975 Old Faithful 12:00 0:43 4:45 12:08 9/13/1975 Old Faithful 13:16 1:16 3:07 13:16 9/13/1975 Old Faithful 14:17 1:01 4:44 14:26 9/13/1975 Old Faithful 15:27 1:10 3:31 15:40 9/13/1975 Old Faithful 16:42 1:15 4:16 16:37 9/13/1975 Old Faithful 17:52 1:10 1:54 17:58 9/13/1975 Beehive 10:59 ie 9/13/1975 Castle 13:39 9/13/1975 Fountain 14:25 ie 9/13/1975 Grand 15:32 9/13/1975 Grand ~11:00not typo 9/13/1975 Great Fountain 6:50 ie 9/13/1975 Great Fountain 15:45 6m pause 9/13/1975 North Goggles 19:44 9/13/1975 Riverside 11:15 VR ~10:30 9/13/1975 Spectacle 11:02 9/14/1975 Old Faithful 1:04 4:41 9/14/1975 Old Faithful 2:26 1:22 3:46 9/14/1975 Old Faithful 3:35 1:09 4:29 9/14/1975 Old Faithful 4:45 1:10 L 9/14/1975 Old Faithful 5:45 1:00 4:39 9/14/1975 Old Faithful 7:08 1:23 2:01 9/14/1975 Old Faithful 7:48 0:40 4:21 7:58 9/14/1975 Old Faithful 9:07 1:19 2:07 +or-10 9:02 9/14/1975 Old Faithful 9:52 0:45 4:28 9:57 9/14/1975 Old Faithful 11:13 1:21 2:42 11:07 9/14/1975 Old Faithful 12:01 0:48 4:47 12:06 9/14/1975 Old Faithful 13:15 1:14 2:10 13:16 9/14/1975 Old Faithful 14:00 0:45 4:32 14:06 9/14/1975 Old Faithful 15:12 1:12 3:17 15:14 9/14/1975 Old Faithful 16:20 1:08 4:17 16:22 9/14/1975 Old Faithful 17:40 1:20 1:59 17:30 9/14/1975 Beehive 13:38 9/14/1975 Beehive's Indicator 10:24 9/14/1975 Castle 9:29 9/14/1975 Castle 18:37 9/14/1975 Grand 15:53 1 long burst~12to13min many near pauses 9/14/1975 Great Fountain 9:30 ie D=55m VR 9/14/1975 Great Fountain 18:07 5min pause 9/14/1975 Rift 10:24 ie 9/14/1975 Rift 15:42 ie 9/14/1975 Rift 15:53 ie 9/14/1975 Rift 16:25 ie 9/14/1975 Riverside 10:19 9/14/1975 Riverside 15:45 9/14/1975 Riverside 22:00end 21:40est from end 22:00 9/14/1975 Round 17:16 9/14/1975 Spa 16:15 ie 9/15/1975 Old Faithful 1:25 2:29 9/15/1975 Old Faithful 2:15 0:50 5:02 9/15/1975 Old Faithful 3:34 1:19 2:12 9/15/1975 Old Faithful 4:23 0:49 4:38 9/15/1975 Old Faithful 5:39 1:16 2:05 9/15/1975 Old Faithful 6:23 0:44 L? 9/15/1975 Old Faithful 7:40 1:17 2:20 9/15/1975 Old Faithful 8:31 0:51 4:27 8:32 9/15/1975 Old Faithful 9:42 1:11 3:21 9:46 9/15/1975 Old Faithful 10:47 1:05 1:51 10:43 10:48 9/15/1975 Old Faithful 11:45 0:58 4:46 11:33 10:47not typo 9/15/1975 Old Faithful 12:57 1:12 1:41 9/15/1975 Old Faithful 13:43 0:46 4:27 13:44 9/15/1975 Old Faithful 15:04 1:21 1:32 14:58 9/15/1975 Old Faithful 15:56 0:52 4:39 15:49 9/15/1975 Old Faithful 17:15 1:19 2:10 17:12 9/15/1975 Castle 13:22 ie 9/15/1975 Grand 7:40 ie 9/15/1975 Grand 16:01 VR 9/15/1975 Great Fountain 10:54 overflow began at 09:42 9/15/1975 Great Fountain 18:43 9/15/1975 Lion 4:28 9/15/1975 Lion 6:48 ie 9/15/1975 Riverside 8:50 9/15/1975 Spiteful 8:47 9/16/1975 Old Faithful 8:42 4:11 9/16/1975 Old Faithful 9:51 1:09 4:29 9:55 9/16/1975 Old Faithful 11:07 1:16 3:58 11:04 9/16/1975 Old Faithful 12:15 1:08 2:24 12:18 9/16/1975 Old Faithful 13:07 0:52 4:03 13:07 9/16/1975 Old Faithful 14:24 1:17 1:53 14:18 9/16/1975 Old Faithful 15:23 0:59 4:17 15:12 9/16/1975 Old Faithful 16:32 1:09 4:44 16:36 9/16/1975 Old Faithful 17:44 1:12 1:45 17:48 9/16/1975 Castle 8:55 9/16/1975 Castle 18:23 9/16/1975 Riverside 9:02 9/16/1975 Riverside 15:00 9/16/1975 Riverside 20:32 9/16/1975 Great Fountain 12:13 end 12:25 9/16/1975 Great Fountain 21:26 6m pause 9/16/1975 Grand 8:21 9/16/1975 Grand 16:37 VR 9/16/1975 Spa 13:17 to 15:29 9/16/1975 Beehive 10:21 ie 9/16/1975 Beehive's Indicator 8:14 9/16/1975 Round 14:18 9/16/1975 Round 19:01 9/16/1975 Grotto 9:54 to 15:29 (duration) 9/16/1975 Grotto Fountain 9:52 9/16/1975 Grotto Fountain 20:11 9/16/1975 Lion 17:33 9/16/1975 Dome active 9/17/1975 Old Faithful 1:21 4:05 9/17/1975 Old Faithful 2:26 1:05 4:22 9/17/1975 Old Faithful 3:33 1:07 4:03 9/17/1975 Old Faithful 4:39 1:06 L 9/17/1975 Old Faithful 5:52 1:13 4:13 9/17/1975 Old Faithful 7:00 1:08 2:09 9/17/1975 Old Faithful 7:51 0:51 4:50 9/17/1975 Old Faithful 9:22 1:31 1:59 9:06 9/17/1975 Old Faithful 10:09 0:47 4:18 10:12 9/17/1975 Old Faithful 11:20 1:11 3:33 11:22 9/17/1975 Old Faithful 12:25 1:05 3:59 12:30 9/17/1975 Old Faithful 13:37 1:12 4:17 13:37 9/17/1975 Old Faithful 14:48 1:11 2:27 14:40 9/17/1975 Old Faithful 15:49 1:01 4:48 15:40 9/17/1975 Old Faithful 17:00 1:11 4:12 17:04 9/17/1975 Artemisia 13:39 9/17/1975 Castle 12:52 9/17/1975 Dome active>11 9/17/1975 Fountain 22:00 ie 9/17/1975 Grand 15:38 9/17/1975 Grand ~07:30 9/17/1975 Riverside 8:19 9/17/1975 Riverside 13:44 9/17/1975 Round 11:38 9/18/1975 Old Faithful 0:53 3:46 9/18/1975 Old Faithful 2:09 1:16 1:46 9/18/1975 Old Faithful 2:52 0:43 4:39 9/18/1975 Old Faithful 4:03 1:11 2:17 9/18/1975 Old Faithful 4:58 0:55 4:32 9/18/1975 Old Faithful 6:19 1:21 4:04 9/18/1975 Old Faithful 7:35 1:16 3:29 9/18/1975 Old Faithful 8:49 1:14 2:35 9/18/1975 Old Faithful 9:48 0:59 4:11 9:46 9/18/1975 Old Faithful 10:59 1:11 4:03 11:00 9/18/1975 Old Faithful 12:07 1:08 3:51 12:11 9/18/1975 Old Faithful 13:15 1:08 2:03 13:17 9/18/1975 Old Faithful 14:04 0:49 4:57 14:05 9/18/1975 Old Faithful 15:23 1:19 2:12 15:19 9/18/1975 Old Faithful 16:21 0:58 4:43 16:15 9/18/1975 Old Faithful 17:32 1:11 1:56 17:37 9/18/1975 Castle 12:40 VR 9/18/1975 Fountain 16:15 ie 9/18/1975 Grand 7:35 ieVR 9/18/1975 Grand 15:03 9/18/1975 Great Fountain 14:35 VR 9/18/1975 Riverside 12:06 VR 9/18/1975 Riverside 18:10 VR 9/19/1975 Old Faithful 0:54 5:08 9/19/1975 Old Faithful 2:07 1:13 3:52 9/19/1975 Old Faithful 3:11 1:04 L 9/19/1975 Old Faithful 4:40 1:29 S 9/19/1975 Old Faithful 5:36 0:56 4:36 9/19/1975 Old Faithful 6:57 1:21 2:52 9/19/1975 Old Faithful 7:52 0:55 4:43 7:52 9/19/1975 Old Faithful 9:08 1:16 1:56 9:08 9/19/1975 Old Faithful 9:59 0:51 3:53 9:56 9/19/1975 Old Faithful 11:18 1:19 1:43 11:11 9/19/1975 Old Faithful 12:11 0:53 4:45 12:05 9/19/1975 Old Faithful 13:29 1:18 1:40 13:27 9/19/1975 Old Faithful 14:15 0:46 4:23 14:16 9/19/1975 Old Faithful 15:31 1:16 2:21 15:30 9/19/1975 Old Faithful 16:23 0:52 4:50 16:23 9/19/1975 Old Faithful 17:37 1:14 2:06 17:38 9/19/1975 Beehive's Indicator 12:25 9/19/1975 Castle 12:13 9/19/1975 Castle 08:45not typo VR minor 9/19/1975 Depression 8:10 9/19/1975 Grand 15:20 9/19/1975 Oblong 11:52 9/19/1975 Riverside 11:22 VR 9/19/1975 Riverside 16:45 VR 9/19/1975 Round 13:05 How about 13:27? 9/19/1975 Spa 12:48 to 13:58 9/20/1975 Old Faithful 0:59 4:32 9/20/1975 Old Faithful 2:13 1:14 S 9/20/1975 Old Faithful 3:13 1:00 L 9/20/1975 Old Faithful 4:26 1:13 L 9/20/1975 Old Faithful 5:30 1:04 4:30 9/20/1975 Old Faithful 6:47 1:17 1:59 9/20/1975 Old Faithful 7:37 0:50 4:32 9/20/1975 Old Faithful 8:47 1:10 3:28 9/20/1975 Old Faithful 9:59 1:12 3:52 9:57 9/20/1975 Old Faithful 11:03 1:04 2:01 11:01 9/20/1975 Old Faithful 11:48 0:45 4:53 11:53 9/20/1975 Old Faithful 13:12 1:24 1:55 13:04 9/20/1975 Old Faithful 14:02 0:50 4:35 14:02 9/20/1975 Old Faithful 15:19 1:17 1:53 15:17 9/20/1975 Old Faithful 16:05 0:46 4:24 16:08 9/20/1975 Old Faithful 17:20 1:15 3:43 17:20 9/20/1975 Beehive 18:15 ie 9/20/1975 Castle 7:43 ie 9/20/1975 Castle 22:37 sp sp 9/20/1975 Depression 16:28 9/20/1975 Grand 14:27 3 bursts 9/20/1975 Grand 22:37 ie 3 bursts 9/20/1975 Grotto Fountain 7:55 ie 9/20/1975 Grotto Fountain 18:25 9/20/1975 Lion 10:01 9/20/1975 Lion 11:26 9/20/1975 Lion 13:40 9/20/1975 Lion 15:31 9/20/1975 Lone Star 18:19 steam phase 9/20/1975 Maddog Geyser 15:37 9/20/1975 Riverside 9:14 9/20/1975 Riverside 14:47 9/20/1975 Rocket 10:33 9/21/1975 Old Faithful 1:15 3:59 9/21/1975 Old Faithful 2:31 1:16 4:06 9/21/1975 Old Faithful 3:34 1:03 L 9/21/1975 Old Faithful 4:54 1:20 3:41 9/21/1975 Old Faithful 6:10 1:16 4:03 9/21/1975 Old Faithful 7:15 1:05 4:28 9/21/1975 Old Faithful 8:35 1:20 ~2:00 8:30 9/21/1975 Old Faithful 9:19 0:44 ~4:30 9:22 9/21/1975 Old Faithful 10:39 1:20 1:30 10:34 9/21/1975 Old Faithful 11:23 0:44 4:01 11:24 9/21/1975 Old Faithful 12:50 1:27 2:02 12:35 9/21/1975 Old Faithful 13:31 0:41 4:25 13:40 9/21/1975 Old Faithful 14:48 1:17 1:31 14:46 9/21/1975 Old Faithful 15:34 0:46 4:10 15:33 9/21/1975 Old Faithful 16:50 1:16 2:31 16:46 9/21/1975 Beehive's Indicator 12:07 ie 9/21/1975 Castle 14:09 9/21/1975 Grand 15:20 3 B 9/21/1975 Great Fountain 13:50 9/21/1975 Oblong 13:58 9/21/1975 Penta 11:07 9/21/1975 Riverside 7:30 9/21/1975 Riverside 12:43 12:55VR 9/21/1975 Turquoise Pool down 2'-3' 9/22/1975 Old Faithful 1:17 4:46 9/22/1975 Old Faithful 2:33 1:16 3:33 9/22/1975 Old Faithful 3:45 1:12 S 9/22/1975 Old Faithful 4:34 0:49 L 9/22/1975 Old Faithful 5:49 1:15 S 9/22/1975 Old Faithful 6:38 0:49 4:30 9/22/1975 Old Faithful 7:53 1:15 3:35 9/22/1975 Old Faithful 9:00 1:07 4:10 9/22/1975 Old Faithful 10:07 1:07 2:04 10:13 9/22/1975 Old Faithful 11:00 0:53 4:31 10:57 9/22/1975 Old Faithful 12:13 1:13 1:44 12:15 9/22/1975 Old Faithful 12:58 0:45 ~3 13:00 9/22/1975 Old Faithful 14:13 1:15 1:57 2:08 9/22/1975 Old Faithful 15:01 0:48 4:17 15:03 9/22/1975 Old Faithful 16:25 1:24 3:54 16:14 9/22/1975 Beehive 11:48 9/22/1975 Beehive's Indicator 8:39 ie 9/22/1975 Castle 8:29 minor6.5min 9/22/1975 Castle 10:55 9/22/1975 Grand 7:25 9/22/1975 Grand ~15:00 3:15-3:30VR 9/22/1975 Great Fountain 9:48 9/22/1975 Grotto Fountain 7:50 9/22/1975 Mortar 17:35 9/22/1975 Oblong 8:33 9/22/1975 Oblong 16:02 9/22/1975 Riverside 12:27 9/22/1975 Riverside 18:30 9/22/1975 Spa 10:47 9/22/1975 Spa 15:35 9/22/1975 Spiteful 10:21 9/22/1975 Spiteful 10:53 9/22/1975 Spiteful 11:23 9/22/1975 Spiteful 15:30 9/22/1975 Vault 14:29 ie 9/23/1975 Old Faithful 8:58 ~1:59 9/23/1975 Old Faithful 9:45 0:47 4:26 9:48 9/23/1975 Old Faithful 10:49 1:04 2:05 10:58 9/23/1975 Old Faithful 11:42 0:53 4:12 11:50 9/23/1975 Old Faithful 12:59 1:17 3:51 12:55 9/23/1975 Old Faithful 14:05 1:06 3:36 14:10 9/23/1975 Old Faithful 15:15 1:10 1:59 15:15 9/23/1975 Old Faithful 16:07 0:52 4:19 16:05 9/23/1975 Beehive 17:58 9/23/1975 Beehive's Indicator 8:17 ie 9/23/1975 Castle 14:28 9/23/1975 Depression 11:24 ie 9/23/1975 Grand 8:02 9/23/1975 Grand 16:23 9/23/1975 Great Fountain 12:00 9/23/1975 Lion 8:32 9/23/1975 Lion 10:48 9/23/1975 Lion 12:18 9/23/1975 Lion 12:35 9/23/1975 Lion 15:24 ie 9/23/1975 Riverside 12:03 VR 9/23/1975 Riverside 17:20 VR 9/23/1975 Round 6:16 9/23/1975 Turquoise Pool down 3'-4' 9/23/1975 Union 15:12 9/23/1975 Union 20:26 9/24/1975 Old Faithful 8:22 2:00 9/24/1975 Old Faithful 9:27 1:05 3:20 9:12 9/24/1975 Old Faithful 10:48 1:21 1:54 10:38 9/24/1975 Old Faithful 11:32 0:44 4:54 11:38 9/24/1975 Old Faithful 12:47 1:15 2:27 12:47 9/24/1975 Old Faithful 13:49 1:02 4:13 13:40 9/24/1975 Old Faithful 15:01 1:12 3:42 15:01 9/24/1975 Old Faithful 16:05 1:04 4:18 16:11 9/24/1975 Grand 8:51 9/24/1975 Grand 16:47 9/24/1975 Riverside 21:38 9/24/1975 Castle 9:03 ie 9/24/1975 Castle 17:47 minor 9/24/1975 Castle 21:12 9/24/1975 Great Fountain 12:20 VR 9/24/1975 Great Fountain 21:45 VR 9/24/1975 Old Tardy 8:17 9/24/1975 Fountain & Jet 10:34 9/24/1975 Pink Cone 9:35 9/25/1975 Old Faithful 8:45 ~4:00(4:52) 9/25/1975 Old Faithful 9:59 1:14 3:05 9:55 9/25/1975 Old Faithful 11:04 1:05 4:36 11:00 9/25/1975 Old Faithful 12:24 1:20 3:56 12:18 9/25/1975 Old Faithful 13:27 1:03 3:42 13:34 9/25/1975 Old Faithful 14:51 1:24 3:57 14:37 9/25/1975 Old Faithful 15:53 1:02 4:11 9/25/1975 Grand 8:43 9/25/1975 Grand ~16:00 9/25/1975 Riverside 8:37 9/25/1975 Riverside 14:29 9/25/1975 Castle 8:37 ie 9/25/1975 Great Fountain 12:30 VR 9/25/1975 Fountain & Clepsydra 10:18 ie "to 10:48 still erupting. Clepsydra eruption was mixed steam&water,~40'" 9/25/1975 "Clepsydra,Jet, & Fountain" 10:25 ie 9/25/1975 "Clepsydra,Jet, & Fountain" 10:31 ie 9/25/1975 "Clepsydra,Jet, & Fountain" 10:35 ie 9/25/1975 "Clepsydra,Jet, & Fountain" 10:38 ie 9/25/1975 "Clepsydra,Jet, & Fountain" 10:43 ie 9/25/1975 "Clepsydra,Jet, & Fountain" 10:44 ie 9/25/1975 "Clepsydra,Jet, & Fountain" 10:47 ie 9/25/1975 "Clepsydra,Jet, & Fountain" 10:48 ie 9/26/1975 Old Faithful 8:28 2:59 9/26/1975 Old Faithful 9:27 0:59 3:57 9:41 9/26/1975 Old Faithful 10:40 1:13 4:01 10:37 9/26/1975 Old Faithful 11:58 1:18 1:49 11:52 9/26/1975 Old Faithful 12:37 0:39 ? 12:46 9/26/1975 Old Faithful 14:06 1:29 1:42 13:47 9/26/1975 Old Faithful 14:49 0:43 3:38 14:53 9/26/1975 Old Faithful 16:19 1:30 4:20 15:59 9/26/1975 Beehive 1:45 VR 9/26/1975 Beehive 10:33 9/26/1975 Castle ~12:30 VR 9/26/1975 Grand 8:47 9/26/1975 Grand 15:58 9/26/1975 Great Fountain ~10:20 ie 9/26/1975 Lion 10:35 9/26/1975 Lion 13:31 VR 9/26/1975 Lion 18:01 9/26/1975 Riverside ~07:20 9/26/1975 Riverside ~12:46 VR 9/27/1975 Old Faithful 9:21 2:39? 9/27/1975 Old Faithful 10:13 0:52 3:46 10:13 9/27/1975 Old Faithful 11:39 1:26 1:54 11:23 9/27/1975 Old Faithful 12:27 0:48 3:55 12:30 9/27/1975 Old Faithful 13:37 1:10 1:45 1:40not typo 9/27/1975 Old Faithful 14:39 1:02 3:51 14:24 9/27/1975 Old Faithful 15:47 1:08 3:49 15:52 9/27/1975 Castle 14:55 ie 9/27/1975 Grand 8:22 9/27/1975 Grand 16:25 9/27/1975 Great Fountain 9:31 9/27/1975 Great Fountain 18:45 VR 9/27/1975 Great Fountain 18:51 VR 9/27/1975 Riverside 11:52 VR 9/27/1975 Riverside 5:48not typo VR 9/28/1975 Old Faithful 8:36 2:08 8:24 9/28/1975 Old Faithful 9:21 0:45 4:07+ 9:26 9/28/1975 Old Faithful 10:35 1:14 2:03 10:32 9/28/1975 Old Faithful 11:29 0:54 4:37 11:25 9/28/1975 Old Faithful 12:46 1:17 2:09 12:44 9/28/1975 Old Faithful 13:33 0:47 4:15 13:38 9/28/1975 Old Faithful 15:04 1:31 3:50 14:46 9/28/1975 Old Faithful 16:10 1:06 1:47 16:14 9/28/1975 Old Faithful 16:54 0:44 4:21 17:00 9/28/1975 Beehive's Indicator 10:00 ie 9/28/1975 Castle 10:05 9/28/1975 Castle 19:20 ie 9/28/1975 Depression 15:05 ie 9/28/1975 Grand 7:34 ie 9/28/1975 Grand 14:46 2 bursts 9/28/1975 Riverside 11:29 9/28/1975 Riverside 17:26 9/28/1975 Round 9:55 minor 9/28/1975 Round 9:24 9/28/1975 Vault 17:51 ie 9/28/1975 Vault ~18:50 ie 9/29/1975 Old Faithful 8:26 1:45 9/29/1975 Old Faithful 9:19 0:53 4:25 9:12 9/29/1975 Old Faithful 10:41 1:22 1:38 10:34 9/29/1975 Old Faithful 11:22 0:41 4:52 11:25 9/29/1975 Old Faithful 12:35 1:13 2:58 12:38 9/29/1975 Old Faithful 13:53 1:18 4:23 13:50 9/29/1975 Old Faithful 15:01 1:08 2:14 15:08 9/29/1975 Old Faithful 15:57 0:56 4:36 16:53 9/29/1975 Castle 6:09 ie 9/29/1975 Castle 15:14 9/29/1975 Grand 12:45 ie 9/29/1975 Grand 20:01 "3 bursts,1st9m45s,2nd and 3rd seconds" 9/29/1975 Great Fountain ~3:00 VR 9/29/1975 Riverside ~10:20 VR 9/29/1975 Riverside 16:23 9/29/1975 Lion 16:06 9/30/1975 Old Faithful 10:05 4:12 9/30/1975 Old Faithful 11:23 1:18 3:32 11:17 9/30/1975 Old Faithful 12:32 1:09 ~4:19 12:33 9/30/1975 Old Faithful 13:39 1:07 4:00 13:45 9/30/1975 Old Faithful 14:52 1:13 4:02 14:49 9/30/1975 Old Faithful 15:59 1:07 1:52 16:04 9/30/1975 Beehive ~13:40 ie 9/30/1975 Beehive's Indicator 10:15 ie 9/30/1975 Castle 10:00 9/30/1975 Depression 13:05 9/30/1975 Grand 3:38 ie "nthburst end~34015,n+1burst34043(54""), n+2burst 34220(33"")" 9/30/1975 Grand 11:17 ie 9/30/1975 Great Fountain 9:01 9/30/1975 Great Fountain at 17:00 full and overflowing 9/30/1975 Grotto Fountain 9:30 9/30/1975 Lion 10:42 9/30/1975 Lion 12:44 9/30/1975 Lion 13:28 9/30/1975 Lion 15:10 minor eruption lasting ~1.5min+maxburst up to40' 9/30/1975 Lion 15:14 eruption lasting ~2min+max burst up to 50' 9/30/1975 Riverside 9:00 VR 9/30/1975 Round 15:17 10/1/1975 Old Faithful 8:03 4:28 10/1/1975 Old Faithful 9:16 1:13 3:03 9:18 10/1/1975 Old Faithful 10:18 1:02 4:15 10:16 10/1/1975 Old Faithful 11:27 1:09 ~3:00 11:32 10/1/1975 Old Faithful 12:32 1:05 4:25 12:27 10/1/1975 Old Faithful 13:50 1:18 ~4:00 13:47 10/1/1975 Old Faithful 14:53 1:03 4:08 15:02 10/1/1975 Old Faithful 15:59 1:06 4:25 16:05 10/1/1975 Castle water phase 11:52 probably began ~11:36 10/1/1975 Depression 14:07 10/1/1975 Grand ~12:20 VR 10/1/1975 Grand 19:36 ie 2bursts <1min each 10/1/1975 Fountain 12:59 ie 10/1/1975 Great Fountain 20:02 2min pause 10/1/1975 Riverside 7:57 end 08:05 10/2/1975 Old Faithful 7:58 3:57 10/2/1975 Old Faithful 9:13 1:15 long 9:10 10/2/1975 Old Faithful 10:26 1:13 3:49 10:18 10/2/1975 Old Faithful 11:28 1:02 3:54 11:38 10/2/1975 Old Faithful 12:54 1:26 1:37 12:40 10/2/1975 Old Faithful 13:38 0:44 4:46 13:42 10/2/1975 Old Faithful 14:57 1:19 1:39 14:52 10/2/1975 Old Faithful 15:58 1:01 4:28 15:43 10/2/1975 Beehive 11:10 10/2/1975 Beehive's Indicator 8:30 ie 10/2/1975 Beehive's Indicator 9:57 10/2/1975 Beehive's Indicator 10:22 10/2/1975 Beehive's Indicator 10:54 10/2/1975 Castle 15:07 10/2/1975 Depression 14:37 10/2/1975 Grand 10:34 2 bursts 10/2/1975 Grand 18:08 4b 10/2/1975 Great Fountain 13:08 10/2/1975 Great Fountain 23:11 10/2/1975 Grotto Complex 9:11 10/2/1975 Lion 10:26 ie 10/2/1975 Lion 11:39 10/2/1975 Lion 13:27 ie 10/2/1975 Lion 16:24 10/2/1975 Oblong 8:47 ie 10/2/1975 Round 18:17 10/2/1975 Vault 11:36 10/2/1975 Vault 14:49 10/2/1975 Vault 15:07 10/2/1975 Vault 15:58 10/2/1975 Vault 12:45(steam) 10/3/1975 Old Faithful 9:28 1:56 10/3/1975 Old Faithful 10:09 0:41 4:33 10:18 10/3/1975 Old Faithful 11:26 1:17 1:46 11:24 10/3/1975 Old Faithful 12:14 0:48 4:17 12:12 10/3/1975 Old Faithful 13:26 1:12 1:41 1:27 10/3/1975 Old Faithful 14:21 0:55 4:29 14:13 10/3/1975 Old Faithful 15:43 1:22 1:52 15:36 10/3/1975 Old Faithful 16:24 0:41 4:32 16:30 10/3/1975 Beehive 0:32 ie 10/3/1975 Castle 9:35 10/3/1975 Castle 18:34 10/3/1975 Depression 11:23 10/3/1975 Depression 17:16 10/3/1975 Grand 9:50 10/3/1975 Grand 19:37 3B's 10/3/1975 Great Fountain 7:29 10/3/1975 Great Fountain ~15:00 10/3/1975 Grotto Fountain 9:28 10/3/1975 Grotto Fountain 16:13 10/3/1975 Oblong 16:44 10/3/1975 Rift 12:41 to 17:57 10/3/1975 Riverside 11:03 10/3/1975 Riverside 16:18 10/3/1975 Spa ~3:47 VR erupted at least 10minutes to over 30 feet 10/4/1975 Old Faithful 8:10 2:20 8:04 10/4/1975 Old Faithful 9:11 1:01 4:13 9:02 10/4/1975 Old Faithful 10:30 1:19 1:55 10:24 10/4/1975 Old Faithful 11:18 0:48 ~4min 11:20 10/4/1975 Old Faithful 12:41 1:23 ~2min 12:28 10/4/1975 Old Faithful 13:27 0:46 4:35 13:30 10/4/1975 Old Faithful 14:43 1:16 1:37 14:42 10/4/1975 Old Faithful 15:35 0:52 4:21 15:29 10/4/1975 Beehive 6:05 ie 10/4/1975 Beehive's Indicator 14:56 10/4/1975 Castle 13:13 13:17 not typo 10/4/1975 Dome 9:08 ie 10/4/1975 Grand 13:42 4b 10/4/1975 Great Fountain 10:14 10/4/1975 Great Fountain 19:42 "(66min overflow, 4min pause)" 10/4/1975 Plate 15:06 10/4/1975 Riverside 9:22 10/4/1975 Riverside 14:58 VR 10/4/1975 Splendid early morning 10/4/1975 West Triplet 11:02 10/4/1975 West Triplet 13:26 10/5/1975 Old Faithful 7:58 4:08 10/5/1975 Old Faithful 9:04 1:06 4:22 9:12 10/5/1975 Old Faithful 10:11 1:07 ~3:45 10:19 10/5/1975 Old Faithful 11:26 1:15 4:10 11:30 10/5/1975 Old Faithful 12:36 1:10 1:48 12:40 10/5/1975 Old Faithful 13:26 0:50 3:40 13:23 10/5/1975 Old Faithful 14:52 1:26 1:45 14:36 10/5/1975 Old Faithful 15:36 0:44 4:48 15:39 10/5/1975 Old Faithful 16:58 1:22 1:56 16:52 10/5/1975 Old Faithful 17:54 0:56 4:34 10/5/1975 Old Faithful 19:05 1:11 2:02 10/5/1975 Beehive 6:46 ie 10/5/1975 Castle 7:57 10/5/1975 Castle 17:08 10/5/1975 Depression 18:41 10/5/1975 Grand ~1:30(not seen) 10/5/1975 Great Fountain 13:27 10/5/1975 Great Fountain 22:11 6 min pause 10/5/1975 Riverside 7:57 10/5/1975 Riverside 13:18 VR 10/5/1975 Riverside 18:35 ie 10/5/1975 Spa 18:48 ie 10/5/1975 Spa 18:52 (D=11s) 10/6/1975 Old Faithful 7:28 2:02 10/6/1975 Old Faithful 8:15 0:47 4:38 8:18 10/6/1975 Old Faithful 9:33 1:18 3:56 9:30 10/6/1975 Old Faithful 10:43 1:10 4:45 10:44 10/6/1975 Old Faithful 12:08 1:25 1:51 11:58 10/6/1975 Old Faithful 12:48 0:40 4:46 12:58 10/6/1975 Old Faithful 14:03 1:15 2:05 14:04 10/6/1975 Old Faithful 14:50 0:47 4:30 14:54 10/6/1975 Old Faithful 16:08 1:18 1:55 16:04 10/6/1975 Old Faithful 16:52 0:44 4:09 16:58 10/6/1975 Beehive's Indicator 11:10 ie 10/6/1975 Castle 10:54 10/6/1975 Castle ~20:15 10/6/1975 Grand 11:54 3b 10/6/1975 Grand 19:09 2b 10/6/1975 Great Fountain 7:11 5min pause 10/6/1975 Great Fountain 16:02 "(60min overflow,7min pause,9min 1st burst, 6min pause)" 10/6/1975 Pink Cone 10:53 10/6/1975 Pink Cone 22:07 ie 10/6/1975 Riverside 11:05 VR 10/6/1975 Riverside 16:17 10/6/1975 Riverside 21:45 ie 10/6/1975 Three Sisters area springs 1st overflow since 6/30/75 Tremor 10/7/1975 Old Faithful 7:49 4:33 10/7/1975 Old Faithful 9:02 1:13 3:45 9:04 10/7/1975 Old Faithful 10:15 1:13 2:03 10:12 10/7/1975 Old Faithful 11:09 0:54 4:55 11:04 10/7/1975 Old Faithful 12:30 1:21 1:58 12:24 10/7/1975 Old Faithful 13:23 0:53 4:45 13:20 10/7/1975 Old Faithful 14:48 1:25 2:13 14:39 10/7/1975 Old Faithful 15:32 0:44 4:48 15:38 10/7/1975 Old Faithful 16:58 1:26 2:00 16:47 10/7/1975 Bob William's V.C. Fumerole 7:45 ie 10/7/1975 Castle 14:40 ie 10/7/1975 Depression 8:05 ie 10/7/1975 Depression 16:08 ie 10/7/1975 Grand 9:52 ie 10/7/1975 Great Fountain 8:50 10/7/1975 Great Fountain 14:35 ie 10/7/1975 Great Fountain 22:20 ie 10/7/1975 North Goggles 9:03 10/7/1975 Oblong 8:52 10/7/1975 Pine Cone 9:01 10/7/1975 Riverside 8:48 10/7/1975 Riverside 14:40 vis 10/7/1975 Riverside 20:39 10/7/1975 Round 12:48 10/7/1975 Spa 8:12 2 min. intervals 10/7/1975 Vault 12:24 10/8/1975 Old Faithful 7:42 4:45 10/8/1975 Old Faithful 8:52 1:10 3:20 8:56 10/8/1975 Old Faithful 10:02 1:10 1:55 9:58 10/8/1975 Old Faithful 11:01 0:59 4:50 10:50 10/8/1975 Old Faithful 12:10 1:09 ~1:55 12:16 10/8/1975 Old Faithful 13:11 1:01 4:15 12:58 10/8/1975 Old Faithful 14:24 1:13 4:15 14:23 10/8/1975 Old Faithful 15:39 1:15 2:09 15:40 10/8/1975 Old Faithful 16:25 0:46 4:40 16:30 10/8/1975 Beehive 0:28 ie 10/8/1975 Beehive 13:04 10/8/1975 Castle 8:45 minor (4min) 10/8/1975 Castle 8:58 ie ie again 10/8/1975 Castle 18:32 10/8/1975 Depression 13:30 10/8/1975 Grand 8:55 3b 10/8/1975 Grand 16:19 (3b)late burst 5:27(17:27) 10/8/1975 Great Fountain 6:40 ie 10/8/1975 Great Fountain 12:00 ie 10/8/1975 Great Fountain 14:10 ie 10/8/1975 Great Fountain 14:30 ie 10/8/1975 Great Fountain 19:37 ie "1200-1937+,Dur=7.5hrs+" 10/8/1975 North Goggles 14:58 ie 10/8/1975 Oblong 18:10 ie 10/8/1975 Pink Cone 8:29 ie 10/8/1975 Riverside 7:35 ie 10/8/1975 Riverside 13:40 VR 10/8/1975 Riverside 19:17 10/8/1975 Round 16:18 10/9/1975 Old Faithful 8:51 1:55 10/9/1975 Old Faithful 9:39 0:48 4:25 9:40 10/9/1975 Old Faithful 10:59 1:20 3:52 10:54 10/9/1975 Old Faithful 12:09 1:10 2:00 12:09 10/9/1975 Old Faithful 12:52 0:43 4:33 12:59 10/9/1975 Old Faithful 14:16 1:24 2:34 14:07 10/9/1975 Old Faithful 15:16 1:00 4:34 15:10 10/9/1975 Old Faithful 16:26 1:10 3:49 16:31 10/9/1975 Artemisia 8:58 10/9/1975 Beehive 12:29 ie 10/9/1975 Beehive's Indicator 9:13 ie 10/9/1975 Castle 13:45 10/9/1975 Depression 10:19 ie 10/9/1975 Grand 8:41 2B's 10/9/1975 Grand 18:10 ie 10/9/1975 Great Fountain Dormant-no eruptions 10/9/1975 Lion 11:07 10/9/1975 Lion 15:34 ie 10/9/1975 Oblong 9:03 10/9/1975 Pink Cone 7:33 ie 10/9/1975 Riverside 6:18 ie 10/9/1975 Riverside 12:13 10/9/1975 Riverside 18:15 VR 10/9/1975 Sawmill 06:58start finished 8:13 10/10/1975 Old Faithful 9:11 4:15 10/10/1975 Old Faithful 10:25 1:14 4:20 10:24 10/10/1975 Old Faithful 11:29 1:04 3:40 11:40 10/10/1975 Old Faithful 12:35 1:06 4:23 12:39 10/10/1975 Old Faithful 13:46 1:11 2:30 13:50 10/10/1975 Old Faithful 14:45 0:59 ~4:30 14:38 10/10/1975 Old Faithful 16:06 1:21 3:49 15:58 10/10/1975 Beehive 21:28 10/10/1975 Castle 9:14 10/10/1975 Castle 18:26 ie 10/10/1975 Grand 8:32 (4B) 10/10/1975 Grand 16:02 ie 10/10/1975 Great Fountain in hibernation 10/10/1975 Lion 8:06 10/10/1975 Lion 12:32 10/10/1975 Lion 16:01 10/10/1975 Lion 17:39 10/10/1975 Pink Cone 18:06 ie 10/10/1975 Riverside 10:58 10/10/1975 Vault 15:28 ie 10/11/1975 Old Faithful 8:52 4:15 8:42 10/11/1975 Old Faithful 10:08 1:16 1:48 10:04 10/11/1975 Old Faithful 10:59 0:51 4:42 10:56 10/11/1975 Old Faithful 12:11 1:12 4:13 12:14 10/11/1975 Old Faithful 13:22 1:11 1:45 13:24 10/11/1975 Old Faithful 14:16 0:54 4:20 14:09 10/11/1975 Old Faithful 15:35 1:19 1:49 15:29 10/11/1975 Old Faithful 16:24 0:49 4:31 16:24 10/11/1975 Castle 13:40 ie 10/11/1975 Depression 13:45 ie 10/11/1975 Dome 10:20 ie (active today) 10/11/1975 Grand 14:01 ie 10/11/1975 Great Fountain 10:42 10/11/1975 Riverside 14:25 10/11/1975 Spa 9:50 ie 10/12/1975 Old Faithful 8:43 4:25 8:32 10/12/1975 Old Faithful 9:59 1:16 2:03 9:58 10/12/1975 Old Faithful 10:47 0:48 4:15 10:49 10/12/1975 Old Faithful 12:04 1:17 2:20 12:00 10/12/1975 Old Faithful 13:02 0:58 4:58 12:56 10/12/1975 Old Faithful 14:21 1:19 1:51 14:17 10/12/1975 Old Faithful 15:04 0:43 4:37 15:11 10/12/1975 Old Faithful 16:20 1:16 3:50 16:17 10/12/1975 Beehive 14:15 10/12/1975 Castle 8:12 ie 10/12/1975 Grand 19:49 4b(false waves 2min at 1905) 10/12/1975 Great Fountain 14:29 "2.5hours overflow before eruption, no pause, est 170'" 10/12/1975 N&S Grotto Fountain 7:06 ie 10/12/1975 Riverside 7:03 ie 10/12/1975 Riverside 12:31 10/13/1975 Old Faithful 8:19 1:46 10/13/1975 Old Faithful 9:05 0:46 4:38 9:06 10/13/1975 Old Faithful 10:27 1:22 2:11 10:20 10/13/1975 Old Faithful 11:15 0:48 4:33 11:20 10/13/1975 Old Faithful 12:38 1:23 3:59 12:30 10/13/1975 Old Faithful 13:40 1:02 2:00 13:50 10/13/1975 Old Faithful 14:37 0:57 4:44 14:30 10/13/1975 Old Faithful 15:46 1:09 3:58 15:52 10/13/1975 Old Faithful 16:51 1:05 4:13 16:56 10/13/1975 Beehive's Indicator 11:33 10/13/1975 Beehive's Indicator 15:47 ie 10/13/1975 Castle 11:29 10/13/1975 Castle 20:27 10/13/1975 Great Fountain 14:20 VR 15:10ie 10/13/1975 Riverside 11:15 10/13/1975 Riverside 17:23 10/14/1975 Old Faithful 8:37 2:00 8:32 10/14/1975 Old Faithful 9:22 0:45 4:28 9:27 10/14/1975 Old Faithful 10:31 1:09 2:15 10:37 10/14/1975 Old Faithful 11:32 1:01 4:48 11:33 10/14/1975 Old Faithful 12:43 1:11 4:05 12:48 10/14/1975 Old Faithful 13:58 1:15 2:11 13:56 10/14/1975 Old Faithful 14:47 0:49 4:39 14:48 10/14/1975 Old Faithful 16:12 1:25 3:59 16:02 10/14/1975 Old Faithful 17:24 10/14/1975 Old Faithful 18:16 4:32 10/14/1975 Castle 15:11 10/14/1975 Depression 15:11 10/14/1975 Grand 10:34 2b 10/14/1975 Grand 19:22 "D=12m22,B1=9m46,3b" 10/14/1975 Great Fountain 7:48 no pause 10/14/1975 Great Fountain 17:27 no pause 10/14/1975 Pink Cone 18:06 ie 10/14/1975 Riverside 10:32 10/14/1975 Riverside 16:33 10/15/1975 Old Faithful 7:04 2:06 10/15/1975 Old Faithful 8:00 0:56 4:15 7:50 10/15/1975 Old Faithful 9:14 1:14 2:15 9:13 10/15/1975 Old Faithful 10:12 0:58 4:10 10:06 10/15/1975 Old Faithful 11:28 1:16 1:52 11:25 10/15/1975 Old Faithful 12:20 0:52 4:32 12:18 10/15/1975 Old Faithful 13:38 1:18 2:23 13:35 10/15/1975 Old Faithful 14:26 0:48 4:42 14:30 10/15/1975 Old Faithful 15:44 1:18 2:28 15:40 10/15/1975 Old Faithful 16:36 0:52 4:42 16:36 10/15/1975 Castle 14:24 ie 10/15/1975 Grand 10:41 (2B) 10/15/1975 Great Fountain 9:27 10/15/1975 Riverside 10:05 ie 10/15/1975 Riverside 15:30 VR 10/15/1975 West Flood(?) 14:42 10/16/1975 Old Faithful 8:42 3:52 10/16/1975 Old Faithful 9:45 1:03 4:32 9:54 10/16/1975 Old Faithful 11:05 1:20 2:20 11:00 10/16/1975 Old Faithful 11:48 0:43 4:47 11:57 10/16/1975 Old Faithful 13:10 1:22 1:54 13:04 10/16/1975 Old Faithful 14:02 0:52 4:44 14:00 10/16/1975 Old Faithful 15:17 1:15 1:38 15:12 10/16/1975 Old Faithful 16:00 0:43 4:35 16:02 10/16/1975 Castle 9:12 10/16/1975 Grand slight runoff at 930 dry at 11:00 10/16/1975 Riverside 8:32 ie ended845 10/16/1975 Riverside 1:50 VR not typo 10/17/1975 Old Faithful 8:54 2:41 10/17/1975 Old Faithful 9:49 0:55 4:44 9:50 10/17/1975 Old Faithful 11:11 1:22 1:45 11:05 10/17/1975 Old Faithful 11:59 0:48 4:19 11:58 10/17/1975 Old Faithful 13:22 1:23 3:42 13:12 10/17/1975 Old Faithful 14:24 1:02 3:50 14:32 10/17/1975 Old Faithful 15:39 1:15 4:05 15:36 10/17/1975 Old Faithful 16:49 1:10 3:58 16:51 10/17/1975 Castle 8:37 ie 10/17/1975 Grand 10:44 (3B) 10/17/1975 Grand 19:47 ie 3+b 10/17/1975 Riverside 12:18 10/18/1975 Old Faithful 8:00 4:30 10/18/1975 Old Faithful 9:17 1:17 2:05 9:15 10/18/1975 Old Faithful 10:04 0:47 4:41 10:07 10/18/1975 Old Faithful 11:24 1:20 4:04 11:20 10/18/1975 Old Faithful 12:34 1:10 2:00 12:36 10/18/1975 Old Faithful 13:18 0:44 4:25 13:24 10/18/1975 Old Faithful 14:34 1:16 2:39 14:33 10/18/1975 Old Faithful 15:27 0:53 4:32 15:29 10/18/1975 Old Faithful 16:42 1:15 4:08 16:43 10/18/1975 Beehive's Indicator 10:43 ie 10/18/1975 Beehive's Indicator 15:20 10/18/1975 Castle 14:34 VR 10/18/1975 Depression 11:32 ie 10/18/1975 Fountain 12:30 10/18/1975 Grand 11:06 ie 10/18/1975 Grand 18:45 VR 10/18/1975 Great Fountain 12:15 ie 10/18/1975 Riverside 11:35 10/18/1975 Riverside 17:07 VR 10/18/1975 Round 15:40 10/19/1975 Old Faithful 7:25 4:43 10/19/1975 Old Faithful 8:35 1:10 3:27 8:40 10/19/1975 Old Faithful 9:45 1:10 2:09 9:40 10/19/1975 Old Faithful 10:34 0:49 4:38 10:36 10/19/1975 Old Faithful 11:51 1:17 1:52 11:49 10/19/1975 Old Faithful 12:37 0:46 3:50 12:40 10/19/1975 Old Faithful 14:09 1:32 1:44 13:47 10/19/1975 Old Faithful 14:46 0:37 4:27 14:56 10/19/1975 Old Faithful 16:07 1:21 1:55 16:00 10/19/1975 Old Faithful 16:51 0:44 4:30 16:54 10/19/1975 Old Faithful 18:11 1:20 1:54 10/19/1975 Old Faithful 18:52 0:41 4:43 10/19/1975 Beehive's Indicator 9:54 ie 10/19/1975 Beehive's Indicator 15:17 10/19/1975 Beehive's Indicator 18:30 ie 10/19/1975 Castle 8:30 ie 10/19/1975 Castle 18:31 ie 10/19/1975 Depression 18:36 ie 10/19/1975 Grand 11:23 ie 10/19/1975 Grand 20:02 10/19/1975 Great Fountain 14:45 10/19/1975 Riverside 10:41 10/19/1975 Riverside 16:38 10/19/1975 Riverside 22:35 10/20/1975 Old Faithful 8:11 4:45 10/20/1975 Old Faithful 9:22 1:11 3:42 9:26 10/20/1975 Old Faithful 10:41 1:19 4:16 10:32 10/20/1975 Old Faithful 11:52 1:11 4:18 11:51 10/20/1975 Old Faithful 12:59 1:07 4:21 13:04 10/20/1975 Old Faithful 14:26 1:27 2:15 14:12 10/20/1975 Old Faithful 15:09 0:43 "5:00,4 1/2" 15:18 10/20/1975 Old Faithful 16:25 1:16 3:13 10/20/1975 Old Faithful 17:23 0:58 4:27 10/20/1975 Castle 12:03 ie 10/20/1975 Castle 21:08 10/20/1975 Grand 13:13 ie 10/20/1975 Grand 20:56 3b 10/20/1975 Great Fountain 7:15 ie 10/20/1975 Great Fountain 16:07 10/20/1975 Lion 12:13 10/20/1975 Lion 15:29 10/20/1975 Oblong 10:33 10/20/1975 Riverside 10:49 ie 10/20/1975 Riverside 16:24 VR 10/20/1975 VC fumarole active 10/20/1975 West Flood 15:13 10/21/1975 Old Faithful 8:58 2:00 10/21/1975 Old Faithful 9:43 0:45 4:43 9:48 10/21/1975 Old Faithful 11:15 1:32 3:52 10:58 10/21/1975 Old Faithful 12:29 1:14 4:46 12:25 10/21/1975 Old Faithful 13:36 1:07 3:45 13:45 10/21/1975 Old Faithful 14:48 1:12 4:36 14:46 10/21/1975 Old Faithful 16:05 1:17 1:44(131) 10/21/1975 Old Faithful 16:57 0:52 4:31 16:48 10/21/1975 Beehive's Indicator 17:58 ie 10/21/1975 Castle 7:08 10/21/1975 Dome active in A.M. 10/21/1975 Grand 14:31 ie 10/21/1975 Great Fountain 10:28 6min not typo 10/21/1975 Great Fountain 19:23 5min not typo 10/21/1975 Lion 8:05 ie 10/21/1975 Lion 9:40 ie 10/21/1975 Lion 12:53 10/21/1975 Lion 15:56 10/21/1975 Lion 16:45 10/21/1975 VC fumarole active 10/22/1975 Old Faithful 8:28 2:10 10/22/1975 Old Faithful 9:11 0:43 4:42 9:18 10/22/1975 Old Faithful 10:26 10/22/1975 Old Faithful 11:26 4:56 10/22/1975 Old Faithful 12:41 1:15 2:13 12:41 10/22/1975 Old Faithful 13:33 0:52 4:37 13:34 10/22/1975 Old Faithful 14:50 1:17 2:26 14:48 10/22/1975 Old Faithful 15:40 0:50 4:53 15:42 10/22/1975 Castle 10:43 due to weather - the park closed 10/22/1975 Riverside 9:25 10/23/1975 Old Faithful 10:11 4:32 10/23/1975 Old Faithful 11:37 1:26 4:17 11:26 10/23/1975 Old Faithful 12:46 1:09 2:10 12:52 10/23/1975 Old Faithful 13:33 0:47 4:44 13:36 10/23/1975 Old Faithful 14:53 1:20 2:21 14:48 10/23/1975 Old Faithful 15:39 0:46 4:30 15:44 10/23/1975 Castle 14:05 ie 10/23/1975 Grand 11:01 ie 10/23/1975 Giantess 7:42 ie 10/23/1975 Giantess 10:53 10/23/1975 Giantess 12:19 10/23/1975 Giantess 12:44 10/23/1975 Giantess 13:16 10/23/1975 Giantess 13:46 10/23/1975 Giantess 14:50 ie 10/23/1975 Giantess 15:29 10/23/1975 Giantess 19:35 10/24/1975 Old Faithful 7:41 2:05 10/24/1975 Old Faithful 8:32 0:51 4:58 8:31 10/24/1975 Old Faithful 9:42 1:10 2:23 10/24/1975 Old Faithful 10:40 0:58 4:52 10/24/1975 Old Faithful 11:58 1:18 3:54 11:55 10/24/1975 Old Faithful 13:14 1:16 4:10 13:08 10/24/1975 Old Faithful 14:32 1:18 2:00 14:26 10/24/1975 Old Faithful 15:17 0:45 4:48 15:32 10/24/1975 Old Faithful 16:37 1:20 1:56 10/24/1975 Old Faithful 17:29 0:52 4:49 10/24/1975 Beehive 15:14 "water5m02s,steam~2m" 10/24/1975 Beehive's Indicator 15:11 ie 10/24/1975 Castle 8:30 10/24/1975 Castle 18:02 10/24/1975 Giantess 8:36 10/24/1975 Giantess 9:44 (D=8m37) 10/24/1975 Giantess 10:33 10/24/1975 Giantess 11:33 "7.5m+or-10s,end 1141:03)" 10/24/1975 Giantess 13:02 ie 10/24/1975 Vault 17:37 ie 10/25/1975 Old Faithful 8:45 4:13 8:44 10/25/1975 Old Faithful 9:55 1:10 1:43 9:58 10/25/1975 Old Faithful 10:43 0:48 4:41 10:42 10/25/1975 Old Faithful 11:58 1:15 3:55 11:57 11:58 10/25/1975 Old Faithful 13:08 1:10 1:59 10/25/1975 Old Faithful 13:53 0:45 4:10 13:58 10/25/1975 Old Faithful 15:28 1:35 1:46 15:05 10/25/1975 Old Faithful 16:07 0:39 4:44 16:15 10/25/1975 Old Faithful 17:42 1:35 1:59 10/25/1975 Beehive 10:55 10/25/1975 Grand 11:11 ie 10/25/1975 Pink Cone 13:39 ie 10/25/1975 VC fumarole active 10/28/1975 Beehive 14:01 10/28/1975 Lion active AM 10/28/1975 Lion 14:44 10/29/1975 Old Faithful 13:58 2:03 10/29/1975 Old Faithful 14:48 0:50 3:57 14:48 10/29/1975 Old Faithful 16:06 1:18 1:50 16:02 10/29/1975 Old Faithful 16:48 0:42 4:42 16:53 10/29/1975 Beehive 11:40 ie end 114300 10/30/1975 Old Faithful 8:00 4:11 10/30/1975 Old Faithful 9:10 1:10 3:58 9:12 10/30/1975 Old Faithful 10:21 1:11 2:00 10:22 10/30/1975 Old Faithful 11:04 0:43 4:30 11:12 10/30/1975 Old Faithful 12:21 1:17 2:09 12:20 10/30/1975 Old Faithful 13:06 0:45 4:33 13:10 10/30/1975 Old Faithful 14:24 1:18 1:53 14:20 10/30/1975 Old Faithful 15:09 0:45 4:27 15:12 10/30/1975 Old Faithful 16:24 1:15 2:10 16:24 10/30/1975 Beehive 17:39 ie 10/30/1975 Depression 15:41 ie 10/30/1975 Dome active in AM 10/30/1975 Grand 17:00 ie 10/30/1975 R.W. Fumarole active off & on 10/30/1975 Vent south side of Sawmill 12:33 lasted ~4 min. 10/31/1975 Old Faithful 7:09 5:02 10/31/1975 Old Faithful 8:25 1:16 2:20 8:24 10/31/1975 Old Faithful 9:25 1:00 4:50 9:17 10/31/1975 Old Faithful 10:45 1:20 2:10 10:40 10/31/1975 Old Faithful 11:33 0:48 4:15 11:36 10/31/1975 Old Faithful 12:47 1:14 4:00 12:46 10/31/1975 Old Faithful 13:54 1:07 4:05 13:58 10/31/1975 Old Faithful 15:15 1:21 3:44 15:06 10/31/1975 Old Faithful 16:18 1:03 1:57 10/31/1975 Old Faithful 17:05 0:47 4:21 10/31/1975 Beehive 14:21 "D=4m41,steam=4m01s" 10/31/1975 Beehive's Indicator 14:11 ie 10/31/1975 Castle 12:12 10/31/1975 Grand 9:53 ie 10/31/1975 Grand 17:20 3b 10/31/1975 Great Fountain 16:35 ie 10/31/1975 Riverside 18:04 11/1/1975 Old Faithful 7:55 4:59 11/1/1975 Old Faithful 9:19 1:24 2:01 9:14 11/1/1975 Old Faithful 10:09 0:50 4:42 10:09 11/1/1975 Old Faithful 11:21 1:12 2:42 11:24 11/1/1975 Old Faithful 12:18 0:57 4:33 12:21 11/1/1975 Old Faithful 13:36 1:18 1:33 13:32 11/1/1975 Old Faithful 14:23 0:47 4:56 14:20 11/1/1975 Old Faithful 15:41 1:18 2:13 15:38 11/1/1975 Old Faithful 16:40 0:59 4:34 11/1/1975 Beehive 11:14 11/1/1975 Castle 7:25 ie 11/1/1975 Castle 16:28 11/1/1975 Depression 11:41 11/1/1975 Depression 16:56 11/1/1975 RW VC Fumarole active in PM. 11/2/1975 Beehive 7:28 ie 11/2/1975 Beehive 17:56 11/3/1975 Beehive 11:28 11/3/1975 Lion 11:46 11/5/1975 Beehive 8:16 ie sp 11/5/1975 Castle 15:30 ie begsp 11/8/1975 Beehive 10:14 ie 11/9/1975 Beehive 11:04 11/9/1975 Beehive's Indicator 10:57 ie 11/9/1975 Grand 10:2930 4b "waves102920,1st 9'40"",2nd103947-4023,3rd104110-seconds rapidograph froze,4th104322-4405,drain104430" 11/13/1975 Beehive 14:21 ie 11/13/1975 Castle 14:45 11/13/1975 Grand 1502 dry 11/13/1975 """Sawmill's Vent""" 15:02 ie also Sawmill & Spasmodic 11/15/1975 Beehive 7:48 ie sp 11/15/1975 Beehive 17:20 ie 11/17/1975 Castle 12:55 ie mabe (not typo) minor 11/17/1975 Lion 12:53 ie 11/17/1975 Lion 17:12 ie 11/20/1975 Beehive 12:04 11/20/1975 Dome and Anemone active pm 11/20/1975 Giantess 18:02 ie "before s.p. by ear, in steam phase ~18:20also dome going strong" 11/21/1975 11:45 ie no geyser name given 11/22/1975 Beehive 14:48 ie 11/24/1975 Beehive 11:35 11/26/1975 Old Faithful 10:16 101605 11/26/1975 Beehive 9:56 11/26/1975 Dome active 11/29/1975 Beehive no time given 11/29/1975 Castle 17:20 s.p. s.p. 11/29/1975 Lion 14:57 ie 11/29/1975 Lion 19:25 ie 12/5/1975 Grand 10:59 12/6/1975 Old Faithful 11:21 3:55 11:14 12/6/1975 Old Faithful 12:26 1:05 3:15 12:33 12/6/1975 Old Faithful 13:35 1:09 3:19 13:36 12/6/1975 Old Faithful 14:53 1:18 3:31 14:45 12/6/1975 Old Faithful 15:59 1:06 3:24 16:03 12/6/1975 Old Faithful 17:10 1:11 1:56 17:09 12/6/1975 Beehive 13:38 12/7/1975 Old Faithful 7:18 1:51 12/7/1975 Old Faithful 8:09 0:51 4:27 8:05 12/7/1975 Old Faithful 9:29 1:20 1:53 9:24 12/7/1975 Old Faithful 10:18 0:49 4:21 10:19 12/7/1975 Old Faithful 11:42 1:24 2:07 11:31 12/7/1975 Old Faithful 12:29 0:47 4:06 12:32 12/7/1975 Old Faithful 13:48 1:19 1:48 13:41 12/7/1975 Old Faithful 14:44 0:56 4:32 14:35 12/7/1975 Old Faithful 15:59 1:15 1:50 15:59 12/7/1975 Old Faithful 16:43 0:44 4:34 16:49 12/7/1975 Castle 10:02 ie 12/7/1975 Grand 15:05 VR 12/7/1975 Plume 8:54 12/7/1975 Plume 9:17 12/7/1975 Plume 9:42 12/7/1975 Plume 10:08 12/7/1975 Plume 10:35 12/7/1975 Plume 11:02 12/7/1975 Plume 11:25 12/7/1975 Plume 13:04 12/7/1975 Plume 13:27 S=2h54/7; A=25m 12/8/1975 Old Faithful 7:46 4:06 12/8/1975 Old Faithful 8:58 1:12 3:52 8:58 12/8/1975 Old Faithful 10:00 1:02 4:14 10:08 12/8/1975 Old Faithful 11:14 1:14 3:28 11:13 12/8/1975 Old Faithful 12:28 1:14 3:57 12:24 12/8/1975 Old Faithful 13:45 1:17 3:55 13:40 12/8/1975 Old Faithful 14:59 1:14 1:58 14:57 12/8/1975 Old Faithful 15:51 0:52 3:57 15:49 12/8/1975 Beehive 17:06 ie 12/8/1975 Castle 13:24 ie water phase 12/8/1975 Giantess 9:11 had a broad massive crater width dome-shaped boil which lasted 10-15sec(est max height:5-6ft. 12/8/1975 Lion 16:10 12/9/1975 Old Faithful 14:07 3:50 12/9/1975 Old Faithful 15:15 1:08 1:59 12/9/1975 Old Faithful 16:08 ie 0:53 long 12/9/1975 Dome active P.M. 12/9/1975 Lion 13:22 12/10/1975 Old Faithful 11:04 4:17 12/10/1975 Old Faithful 12:11 1:07 3:43 12:17 12/10/1975 Old Faithful 13:25 1:14 4:07 13:21 12/10/1975 Old Faithful 14:28 1:03 3:45 14:37 12/10/1975 Beehive 15:55 12/10/1975 Depression 13:41 12/10/1975 Dome active AM 12/10/1975 Round 11:46 12/11/1975 Old Faithful 9:46 4:14 12/11/1975 Old Faithful 11:08 1:22 3:56 10:59 12/11/1975 Old Faithful 12:23 1:15 4:26 12:07:54 12:20 12/11/1975 Old Faithful 13:36 1:13 1:38 13:31 13:38 12/11/1975 Old Faithful 14:29 0:53 4:35 14:13 14:23 12/11/1975 Old Faithful 15:37 1:08 3:48 15:44 12/11/1975 Beehive 11:57 D=4:57 steam=3m01 12/11/1975 Beehive's Indicator 11:33 ie (D=24+min) 12/11/1975 Depression 12:33 12/11/1975 Grand 12:11 3b(~12min) 12/11/1975 Plume 11:37 12/11/1975 Plume 12:02 12/11/1975 Plume 12:28 12/11/1975 Plume 12:54 12/11/1975 Plume 13:18 12/11/1975 Plume 13:43 12/11/1975 Plume 14:08 12/11/1975 Plume 14:31 12/11/1975 Plume 14:55 12/11/1975 Plume 15:21 12/11/1975 Plume 15:46 "S=4h09/10,A=24.9min" 12/12/1975 Old Faithful 8:05 4:10 12/12/1975 Old Faithful 9:17 1:12 4:43 9:18 12/12/1975 Old Faithful 10:31 1:14 1:51 10:33 12/12/1975 Old Faithful 11:15 0:44 4:51 11:18 12/12/1975 Old Faithful 12:43 1:28 4:25 6m21s 12:31 12/12/1975 Old Faithful 13:55 1:12 4:17 13:58 12/12/1975 Old Faithful 15:02 1:07 4:55 14:53 15:08 12/12/1975 Little Squirt active Heavy snowflake concentration 12/13/1975 Old Faithful 9:01 12/13/1975 Old Faithful 10:05 1:04 4:27 noneforday 12/13/1975 Old Faithful 11:13 1:08 4:31 12/13/1975 Old Faithful 12:33 1:20 4:18 12/13/1975 Old Faithful 13:40 1:07 2:13 4m07 12/13/1975 Old Faithful 14:30 0:50 4:40 12/13/1975 Old Faithful 15:45 1:15 1m22s 12/13/1975 Beehive 16:12 5m03 12/13/1975 Beehive's Indicator 15:58 12/13/1975 Depression 10:12 12/13/1975 Depression 14:51 12/13/1975 North Goggles 12:55 D=2-3min 12/13/1975 VC fumarole active 12/14/1975 Old Faithful 9:59 4:03 12/14/1975 Old Faithful 11:11 1:12 2:01 11:11 12/14/1975 Old Faithful 12:00 0:49 4:47 12:01 12/14/1975 Old Faithful 13:21 1:21 1:57 13:16 12/14/1975 Old Faithful 14:07 0:46 4:23 14:11 12/14/1975 Old Faithful 15:21 1:14 short 12/14/1975 Old Faithful 16:17 0:56 4:22 12/14/1975 Beehive 15:20 D=5m21steam3m08 12/14/1975 Beehive's Indicator 14:57 ie 12/14/1975 Castle 9:17 12/14/1975 Depression 13:40 12/15/1975 Old Faithful 10:51 4:45 12/15/1975 Old Faithful 12:00 1:09 4:06 12/15/1975 Old Faithful 13:21 1:21 1:46 12/15/1975 Old Faithful 14:08 0:47 3:52 12/15/1975 Old Faithful 15:27 1:19 2:11 15:18 12/15/1975 Old Faithful 16:22 0:55 4:36 12/16/1975 Old Faithful 12:24 1:44 12/16/1975 Old Faithful 13:04 0:40 3:42 13:11 12/16/1975 Old Faithful 14:22 1:18 1:54 14:14 12/16/1975 Old Faithful 15:19 0:57 4:01 15:12 12/16/1975 Lion 11:22 12/16/1975 Lion 13:27 12/16/1975 Lion 14:46 12/17/1975 Old Faithful 11:29 1:47 12/17/1975 Old Faithful 12:16 0:47 2:05 12:16 12/17/1975 Old Faithful 13:36 1:20 2:06 13:06 12/17/1975 Old Faithful 14:20 0:44 4:01 14:26 12/17/1975 Old Faithful 15:35 1:15 2:30 15:32 12/17/1975 Beehive 14:48 12/17/1975 Lone Star 13:10 12/18/1975 Old Faithful 10:53 3:46 12/18/1975 Old Faithful 12:01 1:08 3:48 12:03 12/18/1975 Old Faithful 13:17 1:16 3:48 13:11 12/18/1975 Old Faithful 14:30 1:13 3:30 14:27 12/18/1975 Old Faithful 15:47 1:17 ~3 1/2 15:40 12/18/1975 Beehive 12:11 12/18/1975 Castle ~14:00 12/18/1975 Plume 10:10 12/19/1975 Old Faithful 9:49 4:37 12/19/1975 Old Faithful 11:01 1:12 3:18 11:04 12/19/1975 Old Faithful 12:15 1:14 ~3 1/2 12:11 12/19/1975 Old Faithful 1:24not typo 1:09 2:03 1:24not typo 12/19/1975 Old Faithful 2:36not typo 1:12 4:39 2:14not typo 12/19/1975 Old Faithful 3:57not typo 1:21 3:33 3:54 not typo 12/19/1975 Depression 12:11 12/19/1975 Giantess 9:30 ie Interval~28 1/2 days 12/19/1975 Giantess 11:04 last observed burst 12/19/1975 Grand 12:35 12/19/1975 Vault 10:02 12/20/1975 Old Faithful 8:25 4:34 12/20/1975 Old Faithful 9:40 1:15 1:53 9:40 12/20/1975 Old Faithful 10:28 0:48 3:28 10:30 12/20/1975 Old Faithful 11:43 1:15 2:21 11:38 12/20/1975 Old Faithful 12:42 0:59 3:34 12:34 12/20/1975 Old Faithful 13:54 1:12 2:18 1:52not typo 12/20/1975 Old Faithful 14:52 0:58 4:35 14:46 12/20/1975 Beehive 15:04 D=4m39 12/20/1975 Beehive's Indicator 10:45 ie 12/20/1975 Beehive's Indicator 15:01 12/20/1975 Castle 11:39 minor 12/20/1975 Depression 15:22 12/20/1975 Grand 11:06 12/21/1975 Old Faithful 8:57 4:41 12/21/1975 Old Faithful 10:10 1:13 4:15 10:13 12/21/1975 Old Faithful 11:28 1:18 3:12 11:23 12/21/1975 Old Faithful 12:33 1:05 ~4:21 12:38 12/21/1975 Old Faithful 13:49 1:16 4:21 13:46 12/21/1975 Old Faithful 15:02 1:13 1:58 15:02 12/21/1975 Old Faithful 15:52 12/21/1975 Old Faithful 17:14 3:41 12/21/1975 Depression 13:50 12/21/1975 Grand 14:01 12/21/1975 Lone Star 11:40 VR 25m 12/21/1975 Riverside 11:00 VR 12/21/1975 Riverside 16:47 VR 12/22/1975 Old Faithful 9:04 2:17 12/22/1975 Old Faithful 10:00 0:56 4:27 9:56 12/22/1975 Old Faithful 11:17 1:17 3:19 11:14 12/22/1975 Old Faithful 12:22 1:05 3:52 12:27 12/22/1975 Old Faithful 13:28 1:06 ~4 1/4 13:32 12/22/1975 Old Faithful 14:37 1:09 4:13 14:40 12/22/1975 Old Faithful 15:51 1:14 4:07 15:50 12/22/1975 Beehive 13:36 D=4m48 steam=1m50s 12/22/1975 Beehive's Indicator 13:05 ie 12/22/1975 Castle 10:06 ie 12/23/1975 Old Faithful 9:50 2:53 12/23/1975 Old Faithful 11:01 1:11 ~4 10:58 12/23/1975 Old Faithful 12:07 1:06 ~4 1/4 12:11 12/23/1975 Old Faithful 13:27 1:20 3:25 1:20not typo 12/23/1975 Old Faithful 14:43 1:16 1:57 2:37not typo 12/23/1975 Old Faithful 15:33 0:50 3:32 15:33 12/23/1975 Beehive 10:10 D=5m05s steam2m45 12/23/1975 Beehive's Indicator 9:49 ie 12/23/1975 Castle 13:48 ie 12/23/1975 Dome 13:51 ie 12/23/1975 Dome 14:43 12/23/1975 Little Squirt active PM 12/23/1975 Lone Star 13:15 VR 12/24/1975 Old Faithful 9:06 3:34 9:06 12/24/1975 Old Faithful 10:20 1:14 3:38 10:16 12/24/1975 Old Faithful 11:37 1:17 3:53 11:34 12/24/1975 Old Faithful 12:42 1:05 4:01 12:49 12/24/1975 Old Faithful 13:50 1:08 2:30 13:54 12/24/1975 Old Faithful 14:36 0:46 4:12 14:42 12/24/1975 Old Faithful 15:52 1:16 1:28 15:49 12/24/1975 Castle 12:30 VR 12/24/1975 Lion 10:28 12/25/1975 Old Faithful 9:39 4:13 12/25/1975 Old Faithful 11:00 1:21 3:47 10:52 12/25/1975 Old Faithful 12:15 1:15 3:16 12:10 12/25/1975 Old Faithful 13:22 1:07 4:02 13:25 12/25/1975 Old Faithful 14:39 1:17 1:43 14:37 12/25/1975 Old Faithful 15:29 0:50 3:58 15:26 12/25/1975 Castle 15:50 VR 12/25/1975 Depression 12:51 12/25/1975 Lone Star 12:10 VR 12/25/1975 Riverside 12:15 12/26/1975 Old Faithful 9:07 3:15 12/26/1975 Old Faithful 10:19 1:12 3:57 10:17 12/26/1975 Old Faithful 11:29 1:10 3:56 11:31 12/26/1975 Old Faithful 12:36 1:07 3:44 12:41 12/26/1975 Old Faithful 13:52 1:16 4:20 13:46 12/26/1975 Old Faithful 15:06 1:14 2:00 15:05 12/26/1975 Old Faithful 15:50 0:44 ~4 1/4 15:56 12/26/1975 Beehive 15:20 D=4:20 12/26/1975 Castle 9:53 12/27/1975 Old Faithful 9:29 4:53 12/27/1975 Old Faithful 10:45 1:16 1:40 10:45 12/27/1975 Old Faithful 11:29 0:44 4:06 11:32 12/27/1975 Old Faithful 12:47 1:18 2:02 12:41 12/27/1975 Old Faithful 13:51 1:04 4:53 13:37 12/27/1975 Old Faithful 15:08 1:17 4:08 15:06 12/27/1975 Beehive 11:25 12/27/1975 Beehive 22:38 22:38:54 12/27/1975 Castle 13:28 ie 12/27/1975 Depression 13:23 12/28/1975 Old Faithful 8:55 12/28/1975 Old Faithful 9:59 1:04 3:00 10:04 12/28/1975 Old Faithful 11:06 1:07 ~4 1/4 11:16 12/28/1975 Old Faithful 12:15 1:09 ~4 12:19 12/28/1975 Old Faithful 13:34 1:19 2:16 13:27 12/28/1975 Old Faithful 14:30 0:56 4:22 14:26 12/28/1975 Old Faithful 15:42 1:12 1:48 12/28/1975 Beehive's Indicator 19:57 ie 12/28/1975 Depression 14:01 12/28/1975 Grand 12:55 ie 12/28/1975 Plume 11:15 12/29/1975 Old Faithful 9:34 2:05 12/29/1975 Old Faithful 10:38 1:04 4:27 10:24 12/29/1975 Old Faithful 12:06 1:28 1:41 11:53 12/29/1975 Old Faithful 12:42 0:36 4:26 12:53 12/29/1975 Old Faithful 14:02 1:20 2:04 13:57 12/29/1975 Old Faithful 14:53 0:51 4:22 14:52 12/29/1975 Beehive 7:11 ie ie sp 12/29/1975 Beehive 17:14 12/29/1975 Castle 13:10 ie 12/29/1975 Grand 12:02 12/30/1975 Old Faithful 9:19 3:51 12/30/1975 Old Faithful 10:25 1:06 4:05 10:29 12/30/1975 Old Faithful 11:49 1:24 3:35 11:37 12/30/1975 Old Faithful 12:52 1:03 4:35 12:59 12/30/1975 Old Faithful 14:15 1:23 3:59 14:06 12/30/1975 Old Faithful 15:23 1:08 3:57 15:27 12/30/1975 Beehive 12:26 Blizzard 12/30/1975 Dome active AM 12/30/1975 Giantess 15:05 4-5' 12/30/1975 Grand 17:10 12/31/1975 Old Faithful 9:36 "Long,foggy" 12/31/1975 Old Faithful 10:52 1:16 1:59 10:46 12/31/1975 Old Faithful 11:50 0:58 3:57 11:48 12/31/1975 Old Faithful 13:11 1:21 Long 13:02 12/31/1975 Old Faithful 14:24 1:13 2:01 14:21 12/31/1975 Old Faithful 15:09 0:45 4:54 15:14 12/31/1975 Castle 12:30 ie 12/31/1975 Grand 11:18 12/31/1975 Lion 10:33 12/31/1975 Lion 13:05 12/31/1975 Lion 14:29 ie