Colter's Hell

Colter's Hell is a thermal spring area along the Shoshone River featuring hot water outlets, steam vents, and sulfurous gases rising from the ground. The site spreads across about one square mile and displays several extinct geyser cone formations throughout the landscape.

John Colter, a member of the Lewis and Clark Expedition, discovered this thermal area while exploring in 1807-1808. The site was later named after him to commemorate his travels through the region and the striking geothermal features he encountered.

The hot springs held deep spiritual meaning for Indigenous peoples, who gathered here for ceremonies and healing practices. You can still see stone arrangements near the thermal features that reflect their connection to this land.

The site is located west of Cody and reachable from West Yellowstone Avenue. Visitors should stay on marked paths and be prepared for changing ground conditions near the thermal features for safety.

The thermal activity has declined significantly since the Buffalo Bill Dam was built, submerging many original springs and geysers under the reservoir. This dramatic change means what visitors see today is only a portion of the geothermal system that once existed here.

Location: Park County

GPS coordinates: 44.51472,-109.11722

Latest update: December 8, 2025 19:55