Natural Features & Ecosystems
In 1915, President Woodrow Wilson established Dinosaur National Monument to preserve "an extraordinary deposit of Dinosaurian and other gigantic reptilian remains of the [Jurassic] period, which are of great interest and value …" Twenty-three years later, President Franklin Roosevelt added more than 200,000 acres to the monument to protect the river corridors and adjacent viewsheds for the major canyons of the Green and Yampa rivers.
Did You Know?
Whitewater rafting is a popular way to experience the remote canyon areas at Dinosaur National Monument. You can take a licensed commercial rafting trip or you can tackle the river on your own, provided you have a permit, the correct equipment and the necessary experience.