Old Faithful banner

Lobby > Exhibits > Hot Water Treasures > Monument Geyser Basin

Monument Geyser Basin

Located south of Gibbon Meadows, this small geyser basin is one of the strangest spots in the park. Although the basin has no active geysers, its “monuments” are made of siliceous sinter and appear very similar to the siliceous spires found on the floor of Yellowstone Lake. Scientists think that this basin’s structures formed from a hydrothermal system in a glacially dammed lake during the last stages of the Pinedale Glaciation.

Two spires rise from the ground

Next Area: Shoshone Lake | Choose Another Area | Global Context

drawing of the OFVEC
Young Scientists
Yellowstone Express
Why Geysers Erupt
Hot Water Treasures
Hot Spring Ecology
Scientific Research

This work is supported by

National Science Foundation    Yellowstone Park Foundation

Last Updated: | http://www.nps.gov |Make an email comment or suggestion