The Four Corners National Monument is the only place in the United States where you can in four different states at the same time. Arizona, Colorado, New Mexico and Utah. The monument is located in the desert on the Navajo Indian Reservation. There is a small visitor center, some Navajo arts and craft booths, picnic tables and portable toilets. There is a small fee charged per vehicle. This monument is only about two hours from Mesa Verde National Park and provides some unique photo opportunities.