Tags: Mountain Range.
The Sierrita Mountains (English: Little Mountains) is a minor mountain range about forty miles southwest of Tucson in Pima County Arizona. Historically the area has seen extensive mining and ranching activity: several ranches abandoned mines and the large Sierrita Mine are located in the area. The highest point in the mountains is Keystone Peak which rises to 6188 feet (1886 m).The Santa Cruz Valley bounds the range to the east separating it from the Santa Rita Mountains.
