• Knightia eocaena mass mortality

    Fossil Butte

    National Monument Wyoming

Contact Us

paleontology in action
Paleontology intern sweeps dust off of a newly discovered fossil in the fossil research quarry
NPS photo

Write to:
Fossil Butte National Monument
P.O. Box 592
Kemmerer, WY 83101

E-mail Us

Visitor Center and Headquarters
(307) 877-4455

(307) 877-4457

Did You Know?

undescribed bat

The oldest known bat fossils are from the Fossil Lake deposits of the Green River Formation in southwestern Wyoming.