Harpers Corner Road is closed from the first significant snowfall some time in December to approximately Easter.
Most dirt roads in the park are clay based and impassable when wet, even with four-wheel drive vehicles including the roads to Echo Park, the Yampa Bench Road, and Island Park Road. These roads are not maintained in the winter and can be impassable due to snow.
Did You Know?
Dinosaurs became extinct 65 million years ago, but lizards are still a common sight at Dinosaur National Monument. The small, inquisitive reptiles have endured on Earth for more than 300 million years, far outlasting their giant cousins.