National Monument · WY
Fossil Butte National Monument is open.
Last checked Wed, 14 Oct 2026 13:00:58 GMT
In the ridges of southwest Wyoming are some of the best-preserved fossils in the world.
A federal government shutdown is in effect. Access and staffing at National Park Service sites vary — some close and barricade entrances, some stay open but unstaffed. Live shutdown status →
In the ridges of southwest Wyoming are some of the best-preserved fossils in the world. They tell the story of ancient life in a warm, wet environment in and around a freshwater lake. Stingrays swam in the lake. Turtles basked in the sun. Leaves rustled in the breeze while early horses darted between the trunks. We reveal more of the past with each fossil found.
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We derive Fossil Butte National Monument's status from the National Park Service's own alerts and operating hours, refreshed hourly — this is our reading, not an official determination. As of the last check: No active closures or hazards reported. Full method: how we check park status.