Avalanche Geyser is located in the Gibbon Geyser Basin on Geyser Creek 1/2 mile southeast of the Artist Paint Pots in the backcountry of Yellowstone. Avalanche erupts about every 9 minutes.
Avalanche Geyser:

Avalanche movie (2.5 Mb, 25 sec, sound)
Image copyright 2003, Michael Frazier. All rights reserved.