Dos Lomitas Ranch

Dos Lomitas Ranch
Dos Lomitas Ranch
Dos Lomitas ranch house
Dos Lomitas Ranch is located in Arizona
Location: Pima County, Arizona, USA
Nearest city: Ajo, Arizona
Coordinates: 31°51′29″N 112°44′25″W / 31.85806°N 112.74028°W / 31.85806; -112.74028Coordinates: 31°51′29″N 112°44′25″W / 31.85806°N 112.74028°W / 31.85806; -112.74028
Built: 1914
Built by: Robert Louis Gray
Architectural style: Other
Governing body: National Park Service
NRHP Reference#: 94000426
Added to NRHP: May 06, 1994[1]

The Dos Lomitas Ranch, also known as the Rattlesnake Ranch, Blankenship Well and the Gray Ranch, was the first of fifteen ranches and line camps in the Gray family cattle business in the Sonoran Desert country north of the US-Mexico border in Arizona. The ranch is now part of Organ Pipe Cactus National Monument. The period of significance begins for the district with the purchase of the water rights for the ranch in 1919 and ends with the death with the last of the three Gray sons, Robert, Jr., in 1976, and the subsequent removal of the last of the Gray's cattle from the monument.

The main ranch house, is regarded as a rare example of the earlier "Sonoran traditional ranch style," characterized by thick adobe walls, whether exposed or stuccoed, beamed ceiling, flat roof and floor of packed earth, often laid out in an L-form. An outbuilding is built of railroad ties covered with corrugated roofing.[2][3]

See also

  • Bates Well Ranch, another of the Gray family ranches in Organ Pipe Cactus National Monument


  1. ^ "National Register Information System". National Register of Historic Places. National Park Service. 2008-04-15. 
  2. ^ "Dos Lomitas Ranch Main Ranch House". List of Classified Structures. National Park Service. 2008-11-26. 
  3. ^ Lawrence F. Van Horn (March 17, 1994). National Register of Historic Places Inventory-Nomination: Dos Lomitas RanchPDF (938 KB). National Park Service. 

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