Bridge over Colorado River - Borderline Garfield County, Utah and San Juan County, Utah View of the Colorado River channel, which is normally flooded by Lake Powell. This photo was taken in May 2003, after 4 years of severe drought. The Little Rockies and the Henry Mountains are in the background. Bicentennial Scenic Byway Travel the Bicentennial Highway Scenic Byway U-95 past reminders of the Gold Rush era, through magnificent red rock canyons, to the blue waters of Lake Powell. Hike to Anasazi Indian cliff dwellings and explore the world's largest collection of natural bridges.