Spasmotic Geyser is located in the Upper Geyser Basin of Yellowstone. Spasmotic erupts about every 1-3 hours and has a duration of about 15 to 30 minutes.

Spasmotic Geyser:

Spasmotic movie (0.4 Mb, 10 sec, sound)

Image copyright 1999, Michael Frazier. All rights reserved.