Historical Marker
Sheepeater Cliff
Historical marker location:
Yellowstone National Park, Wyoming
( Marker is on Sheepeater Cliff Road, 0.3 miles east of U.S. 89, on the left when traveling east.)
Wyoming is the only state in the United States that has an official state dinosaur. The state dinosaur is the Triceratops, which roamed the area during the Late Cretaceous period.