Tohono O'odham Indian Reservation

45mi/73km southwest of Tucson, on Kitt Peak, high in the mountains of the Sonora Desert, is the Kitt Peak National Observatory, one of the most important astronomical stations in the world, with 22 optical telescopes and two radio telescopes, including a giant solar telescope, and a museum.

The public can visit the Kitt Peak National Observatory on a guided tour which runs several times a day during daylight hours. Nightly Observing Programs offer a chance to stargaze. These nightly programs are open to small groups and allow visitors a hands on experience to see planets and galaxies.

Quijotoa is a town within the Tohono O'odham Indian Reservation.

Sells is the tribal headquarters and largest town on the Tohono O'odham Indian Reservation.