Rainbow Bridge Nat'l Monument, So. Utah. The world's largest natural bridge, set in red sandstone, is 309 ft. high and has a span of 278 ft. It is reached by trail a short distance from Lake Powell. Note two tiny horseback riders on the ledge at right.
Muench, Josef and Tom C. Cooper- Arizona II; Muench, Joyce and Josef- Grand Canyon a Pictorial Interpretation; Elmer, Carlos and Josef Muench- Grand Canyon Country; Arizona Highways, The Southwest of Josef Muench: The Photgraphy of Joseph Muench