• Knightia eocaena mass mortality

    Fossil Butte

    National Monument Wyoming

Bicycling Information

biking the gravel portion of the scenic drive
photo by Marcia Fagnant
Bicycling is allowed in the monument but riders must remain on the scenic drive road. They are not allowed on interpretive trails. Check at the visitor center for details.

Did You Know?

Chisternon undatum, Western Paleo Labs photo

The Green River Formation includes the best paleontological record of Tertiary aquatic communities in North America and possibly the world.