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Patagonia placers (Mowry placers), Mowry Wash, Mowry, Patagonia District, Patagonia Mts, Santa Cruz Co., Arizona, USA

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‡Ref.: Schrader, F.C. (1915) Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, with contributions by J.M. Hill: U.S. Geological Survey Bulletin 582, 373 p., 3 sheets, scale 1:125,000: 348.

Wilson, E.D. (1927), Arizona Gold placers, 2nd. ed. (revised), Universty of Arizona Bull. 124: 55.

Arizona Bureau of Mines Bull. 135 (1933), Arizona Gold placers and placering: 77-78.

Wilson, E.D. (1937) Arizona Gold Placers and Placering. Arizona Bureau of Mines Bull. 142.: 77-78.

Johnson, M.G. (1972), Placer gold deposits of Arizona, USGS Bull. 1355: 48-49.

Simons, F.S. (1974) Geologic map and sections of the Nogales and Lochiel quadrangles, Santa Cruz County, Arizona: U.S. Geological Survey Miscellaneous Investigations Series Map I-762, 9 p., 1 sheet, scale 1:48,000.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 236.

U.S. Bureau of Mines field notes, AU28.

U.S. Bureau of Mines files, Patagonia placers.

MRDS database Dep. ID file #10048338, MRDS ID #M899922; and, Dep. ID #10259465, MRDS ID #D000832, MAS ID #0040230313.

A placer gold deposit and former mine area located in the SE¼ sec. 22, T23S, R16E, on a south side tributary gulch about 1¼ miles SSW of Mowry; main wash at the eastern border of Guajolote Flat, 3/4 mile E of the Flying R Ranch, about 9 miles South of Patagonia & 6 miles north of the Mexican border, 4.0 miles SE of Harshaw, and 2.5 miles N of Washington Camp, on National Forest land. Discovered about 1875 by Mexicans. There are three main prospects marked on the USGS 7.5 minute map.

Mineralization is placer gold in stream gravels in the pediment portion of Mowry Wash and its tributaries. The deposit is 1.5 meters thick. The gold was probably derived from vein systems outcropping along gulches in the Patagonia Mountains to the west of the placers.

Workings included dry washing during the early 1900's. Known production in 1909 was 2 oz. of gold. Produced about $200 worth in 1906; rocking operations were carried on during the summer of 1933.

Mineral List

Mineral list contains entries from the region specified including sub-localities

2 entries listed. 1 valid mineral.

Localities in this Region

  • Arizona
    • Santa Cruz Co.
      • Patagonia Mts

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