National Register Listings in
Crook County, Wyoming

DXN Bridge over Missouri River Entrance Road-Devils Tower National Monument Entrance Station-Devils Tower National Monument Inyan Kara Mountain Old Headquarters Area Historic District Ranch A Sundance School Sundance State Bank Tower Ladder-Devils Tower National Monument Wyoming Mercantile
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.
Wyoming random facts