The Upper Geyser Basin map is from Heinrich Koenig's Geyser Information.

[ Grotto Group ]

[ Grotto ] [ Grotto Fountain ] [ Indicator Spring ] [ Rocket ]
[ South Grotto Fountain ] [ Spa ] [ Startling ]

[ Daisy Group ]

[ Brilliant Pool ] [ Comet ]
[ Daisy ] [ Splendid ]

[ Giant Group ]