Located southeast of the Uinta Mountains at the confluence of the Yampa and Green Rivers on the Utah-Colorado border, Dinosaur National Monument is a federally protected area where dinosaur fossils can be found. The monument is one of the few places in…

Mantle’s Cave is the most important Fremont period archaeological site excavated in northwestern Colorado. Artifacts recovered from the cave were instrumental in defining the Fremont culture. Because the cave is dry, artifacts that are not usually seen…

Moffat County, named for Denver mining and railroad mogul David Moffat, covers 4,751 square miles of Colorado’s northwest corner. It sits on the northern edge of the Colorado Plateau and is bordered by the state of Wyoming to the north, Routt County to…

The Yampa River snakes 250 miles across northwestern Colorado, primarily in Routt and Moffat Counties. Its watershed encompasses approximately 8,000 square miles in Colorado and Wyoming; in Colorado, the river flows through Craig, Hayden, Milner, and…