Monument Valley, Arizona/Utah: Monument Valley is located along the Arizona-Utah border, roughly 275 kilometers northeast of Flagstaff, Arizona. It is part of the Navajo Nation, the near 7-million hectare home of the Navajo tribe. An iconic symbol of the Southwestern USA, the sandstone towers have been sculpted by the forces of wind and water over millions of years. It has served as a backdrop in films such as ‘Forrest Gump’, ‘Back to the Future: Part III’ and Disney’s ‘The Lone Ranger’.