Plan Your Visit

A brown fossil stingray facing left on tan stone.
Asterotrygon maloneyi was a freshwater stingray living in Fossil Lake.

NPS Photo

Fossil Butte National Monument is located in the sagebrush-covered hills of rural, southwestern Wyoming. Wide open spaces, fresh air, blue skies, abundant wildlife and, of course, some of the most incredible fossils in the world are found here.

The visitor center and museum are open year round, though hours vary by season. Ranger-led programs are offered during the summer.

During the summer months, hiking trails provide a wonderful way to experience the monument. Spring and fall offer cooler temperatures and many chances to view wildlife. Snowshoeing and cross-country skiing are great ways to explore the park during winter months.

There is no camping available in the park.
Exhibit with around 50 different Green River Formation plant fossils.

Things to Do

See the fossils in the visitor center museum or learn about geology while hiking one of our trails.

A trail heads through aspens; the leaves are green and yellow.

Operating Hours and Seasons

Discover when Fossil Butte NM is open throughout the year.

Cloudy sky and rain falling on Fossil Butte and the sagebrush lowlands.

Current Conditions at Fossil Butte

As you plan your visit, be sure to check out the current conditions at Fossil Butte National Monument.

A ridge with a higher section that looks like a butte with a flat top and steep sides.


Find out how to get to Fossil Butte National Monument.

The front of a train engine facing right painted red, blue, gold, and black

Nearby Attractions

Fossil Butte NM is within a 3-hour drive of 4 other national park sites.

Last updated: July 27, 2022

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Contact Info

Mailing Address:

P.O. Box 592
Kemmerer, WY 83101


307 877-4455

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