PUBLIC MARKS from gregg with tags googlemaps & "google streetview"

As the Colorado River flows across the Colorado Plateau high country into northern Arizona, the serpentine bends of the channel carve a 277-mile canyon that is more than a mile deep, and, at its widest point, 18 miles across. Established as a national park by President Woodrow Wilson in 1919, Grand Canyon remains one of the most popular parks in America and has been named one of the Seven Natural Wonders of the World.