Rocks, Valleys, Cliffs, Grand Canyon National Park (Ariz.), Colorado River (Colo.-Mexico), Buttes, Shrubs, Colorado River Valley (Colo.-Mexico), Grand Canyon...
Valleys, Cliffs, Moran Point (Ariz.), Mesas, Colorado River (Colo.-Mexico), Rock formations, Colorado River Valley (Colo.-Mexico), Grand Canyon (Ariz.), Rive...