Great Fountain Geyser is located on the Firehold Lake Drive in the Lower Geyser Basin of Yellowstone. Great Fountain erupts about every 12 hours and has a duration of about 1 hour.

Great Fountain Geyser June 2001:

Great Fountain movie (1.0 Mb, 14 sec, sound)

Great Fountain Geyser August 2000:

Great Fountain movie (0.4 Mb, 10 sec, sound)

Image copyright 2000, Michael Frazier. All rights reserved.