• Knightia eocaena mass mortality

    Fossil Butte

    National Monument Wyoming

Accessibility

The visitor center, trailhead vault toilets, and picnic area are wheelchair accessible.

Did You Know?

Knightia eocaena, NPS photo of Fossil Country Museum specimen

Knightia eocaena, a fossil fish, is the most abundant vertebrate fossil in the world and the state fossil of Wyoming.