Rainbow Bridge Nat'l Mon. Utah. Arching across a canyon near the Glen Canyon of the Colorado River is this, the largest natural bridge in the world. It measures 309 feet in height, with a span of 278 ft. and a 40 foot thickness at the top. It is reached only by trail. Note rider.
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