Plan Your Visit
Fossil Butte National Monument is located between 6800 and 8100 feet elevation 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.
To participate in ranger-led activities, schedule your visit during the months of June, July, and August. Allow all day to fully explore the park. Spring and fall offer cooler temperatures and many opportunities to view wildlife. Snowshoeing and cross-country skiing opportunities exist during winter months.
The visitor center containing fossil exhibits and interactive displays is open 361 days of the year.
Did You Know?
Railroad workers played a major role in the discovery of fossils from the Green River Formation. In the late 1860's, Union Pacific workers uncovered the first major fossil fish beds (Lake Gosiute) near the town of Green River, Wyoming.