Navajo Bridge spans the width of Marble Canyon along the Colorado River. Constructed of concrete and steel, the bridge is tied for ninth highest in the United States. Ralf Hoffman of the Arizona Highway Department (AHD) designed it, and in June of…

Mormon settlers of Bluff, Utah, crossed the high desert of the Colorado Plateau and the Colorado River in 1879 on what is now known as the Hole-In-the-Rock trail. Brigham Young had called a group of southern Utah Mormons to settle southeastern Utah…