Sierrita Mountains

{{Short description|Landform in Pima County, Arizona}}

{{Infobox mountain

| name = Sierrita Mountains

| photo = Sierrita_Mountains_Arizona_2013.jpg

| photo_size = 300px

| photo_caption = The Sierritas from the east.

| country = United States

| state = Arizona

| region = Sonoran Desert

| district = Tucson, AZ

| location = Pima County, Arizona

| coordinates = {{coord|31.877861|N|111.195097|W|type:mountain_scale:100000|format=dms|display=inline,title}}

| topo_map = USGS Samaniego, AZ

| geology =

| border =

| orogeny =

| length_mi =

| length_orientation =

| width_mi =

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| highest = Keystone Peak

| elevation_ft = 6188

| map = USA Arizona

| map_width = 200

| map_caption = Location of the Sierritas in Arizona

}}

The Sierrita Mountains (English: "Little Mountains") is a minor mountain range about {{cvt|40|mi|-1}} 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 {{convert|6188|ft}}.{{Cite web | title=Sierrita Mountains, AZ| work=| url=http://www.topoquest.com/place-detail.php?id=11287| date=| year=| accessdate=2013-12-05}}{{Cite web | title=Keystone Peak, AZ| work=| url=http://www.topoquest.com/place-detail.php?id=6683| date=| year=| accessdate=2013-12-05}}

The Santa Cruz Valley bounds the range to the east separating it from the Santa Rita Mountains. The west margin of the range is the broad Altar Valley. To the southwest the Sierritas merge with the Cerro Colorado Mountains and the Penitas Hills. The Tumacacori Mountains of Santa Cruz County lie to the southeast.Arizona Atlas and Gazetteer, DeLorme, 4th ed., 2001, pp. 72–73 {{ISBN|0899333257}}