Fossil Butte beneath a clear, blue southwest Wyoming sky.

Fossil Butte National Monument was established on October 23, 1972, in order to preserve fossil bearing rock formations. These rocks contain traces of plants and animals from a lake that covered the area over 50 million years ago. Many species of fishes, insects, birds, and even crocodiles are wonderfully preserved, making the park's fossils of international scientific importance.

The 8,198 acre park is located just 15 miles west of the town of Kemmerer in southwestern Wyoming. At between 2000 and 2500 meters (6500' and 8000') in elevation, its climate is that of high desert. Summers bring hot, sunny days and pleasantly cool nights. Winters are cold with moderate snowfall.

The park has a visitor center featuring a display of museum-quality fossils, a bookstore, and an information desk. It is open year-round excluding federal holidays. There are also two interpretive hiking trails.

Animals abound at Fossil Butte. Herds of elk, pronghorn antelope, mule deer, and even a few moose frequent the park. Smaller mammals such as jackrabbits, badgers, porcupines, coyotes and prairie dogs are resident year round. A variety of eagles, hawks, and falcons have become increasingly common.

Fees and Restrictions

There is no entrance fee at the Monument.

Licensed motor bikes, trucks, and automobiles are permitted in the Monument, but are restricted to designated roads and operators must be properly licensed. Bicycles must also remain on the roads and stay off of the trails for maintenance and safety reasons. There is no camping or overnight parking at the park.

Pets are allowed on trails, but must be under physical restraint at all times. Horse use is allowed in the Monument, but not on the trails. Riders must unload horses outside of the monument boundary. During the winter, hiking and cross-country skiing are encouraged, weather permitting. Snow machines are not permitted within the Monument boundaries.

Last Updated January 2004