Most of the major canyons of the U.S. Southwest were formed by rivers eating through sedimentary rock over eons, typically forming wide, colorful, and often gently-stepped chasms. The Black Canyon of the Gunnison River is an exception to this tendency and is unusually steep, dark, and rugged.
The gorge reaches depths in excess of 2,000 feet while being only 1,500 feet across. This must be seen to be truly appreciated. We had time only to drive the rim road and peek down from vantage points provided by some of the short access trails that started at the road’s edge.