Royal Gorge on the Arkansas River

This picture taken from the Royal Gorge Bridge near Canon City, Colorado.  This canyon was basically formed by the Arkansas River that one can see directly in the center of the photo and the uplifting of the granite rock that began to rise approximately 3 million years ago.  The Gorge, width at the base is 50 feet and a couple of hundred feet at the top and a depth of just over a 1200 feet, is attributed to the long, direct erosion through the hard rock.  If one looks closely enough there are train tracks where the Denver and Rio Grande Railroads use to run back in the late 1800s.  The Royal Gorge Route Railroad operate excursion Trains through the Gorge now.