• Knightia eocaena mass mortality

    Fossil Butte

    National Monument Wyoming

Road Closures

The entrance road gate is closed only during severe winter storms. The road beyond the visitor center accessing the picnic area, Chicken Creek Nature Trail (previously Fossil Lake Trail), and scenic drive closes to motorized vehicles November 1st until the snow melts, usually by late May.

Did You Know?

pronghorn antelope

There are more pronghorn antelope in the state of Wyoming than people. One hundred or so spend the spring, summer, and fall in Fossil Butte National Monument.