• 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?

Diplomystus dentatus, NPS photo of Fossil Country Museum specimen

Railroad workers played a major role in the discovery of fossils from the Green River Formation. In the late 1860's, Union Pacific workers uncovered the first major fossil fish beds (Lake Gosiute) near the town of Green River, Wyoming.