Giant Geyser is located in the Upper Geyser Basin of Yellowstone. Giant erupts very infrequently. Usually not more than once or twice a year. It usually has a duration of about 1 hour. Giant often erupts to a hieght of 150 feet or more.

Giant Geyser:

Giant movie (1.7 Mb, 18 sec, sound)

Image copyright 1998, Mas Hayakawa. All rights reserved.