The Fossil Lake Trail is now open to the public. 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. 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 groomed hiking trails. Animals abound at Fossil Butte. Herds of elk, pronghorn antelope, mule deer, and even a few moose frequent the park.