Dinosaur National Monument

Dinosaur National Monument, located on both sides of the Colorado-Utah state border, covers 329 acres. It is known for the many dinosaur remains found in an outcropping discovered there in 1909 and for several spectacular canyons created by the Green River and its tributary, the Yampa. The canyons, the highest of which is the Canyon of Lodore (1,020 m/3,350 ft deep), contain evidence of prehistoric Indian life. The area became a national monument in 1915. Below are links that provide information about the Dinosaur National Monument.