Mammoth in Lamar Valley in Park County, Wyoming — The American West (Mountains)
Soda Butte
This travertine (calcium carbonate) mound was formed more than a century ago by a hot spring. Only small amounts of hydrothermal water and hydrogen sulfide gas currently flow from this once more prolific spring. This formation is very fragile. It is illegal to remove, deface, or destroy any part of it.
Erected by National Park Service.
Topics. This historical marker is listed in this topic list: Natural Features.
Location. 44° 52.677′ N, 110° 9.166′ W. Marker is in Lamar Valley, Wyoming, in Park County. It is in Mammoth. Marker is on NE Entrance Road (U.S. 212), on the right when traveling east. Touch for map. Marker is in this post office area: Yellowstone National Park WY 82190, United States of America. Touch for directions.
Credits. This page was last revised on February 16, 2023. It was originally submitted on September 7, 2015, by Bill Coughlin of Woodland Park, New Jersey. This page has been viewed 365 times since then and 27 times this year. Photos: 1, 2, 3, 4, 5. submitted on September 7, 2015, by Bill Coughlin of Woodland Park, New Jersey.