The past three million years are likely when the canyons we see today became recognizable. The most recent uplift and erosion occured within the last three to 50 million years...
AdRisky Things To Do In Colorado. See Top & Unique Activities For A Thrilling Trip. Unparalleled Hiking, Camping, Mountain Biking, Climbing, Cultural Heritage & So Much More
8,000 Miles Of Rivers · 58 Fourteeners · 7 Mountain Ranges · 42 State Parks