Rainbow Bridge, located on Lake Powell, is the world`s largest natural bridge and is considered a sacred place by the Navajo Indians, for whom personified rainbows have stood as guardians of the universe. This natural wonder nestles among canyons carved by streams en route to the Colorado River from Navajo Mountain`s north flank. Until the formation of Lake Powell, this was one of the most remote and inaccessible regions in the contiguous United States. It is located on 160 acres of federal land in San Juan County, Utah, immediately adjacent to Navajo Mountain and the Navajo Reservation.Today, the bridge is accessible by a two-hour, one-way boat ride from Wahweap Marina.