The San Rafael Valley is a high intermontane grass valley in eastern Santa Cruz County, Arizona

Santa Cruz County, Arizona

-2010:Whereas according to the 2010 U.S. Census Bureau:*73.5% White*0.4% Black*0.7% Native American*0.5% Asian*0.0% Native Hawaiian or Pacific Islander*2.0% Two or more races*22.9% Other races*82.8% Hispanic or Latino -2000:...

. The valley is bounded to the west by the Patagonia Mountains

Patagonia Mountains

The Patagonia Mountains is a 15 mile long mountain range south of the Santa Rita Mountains. Sonoita Creek flows in the valley north of the Patagonias. Both ranges are east of the Santa Cruz River Valley...

, to the north and northeast by the Canelo Hills

Canelo Hills

The Canelo Hills Cienega Reserve, is a nature preserve southeast of Sonoita, Arizona on the east side of the Canelo Hills. The area's are a mix of rare cienega wetland and Black Oak and Arizona Fescue fields. The preserve is notable for the extremely rare Canelo Ladies Tresses Orchid and the...

 and to the east by the Huachuca Mountains

Huachuca Mountains

The Huachuca Mountain range is part of the Sierra Vista Ranger District of the Coronado National Forest. The Huachuca Mountains are located in Cochise County, Arizona approximately south-southeast of Tucson and southwest of the city of Sierra Vista, Arizona...

 in Cochise County

Cochise County, Arizona

-2010:Whereas according to the 2010 U.S. Census Bureau:*78.5% White*4.2% Black*1.2% Native American*1.9% Asian*0.3% Native Hawaiian or Pacific Islander*4.0% Two or more races*9.6% Other races*32.4% Hispanic or Latino -2000:...

. The valley forms the headwaters of the Santa Cruz River which flows south into Sonora

Sonora

Sonora officially Estado Libre y Soberano de Sonora is one of the 31 states which, with the Federal District, comprise the 32 Federal Entities of Mexico. It is divided into 72 municipalities; the capital city is Hermosillo....

, Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 just east of the historic Lochiel townsite. The Santa Cruz De La Znaja Land Grant lies in the valley center just north of Lochiel.

The Nature Conservancy purchased the former land grant ranch in 1998 and Arizona established the San Rafael State Natural Area in the valley in 1999. The protected areas are not open to the public.