Latitude: 31°40'3"N
Longitude: 110°49'14"W
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 237.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 16 (Table 1).
USGS Mt Wrightson Quadrangle 7.5 minute topo map.
U.S. Bureau of Mines field notes, AG15.
Arizona Bureau of Mines card file Santa Cruz County.
MRDS database Dep. ID file #10283665, MAS ID #0040230400.
A Ag-Cu occurrence/mine with underground workings located in the NE¼NW¼ sec. 28, T.20S., R.15E. (Mount Wrightson 15 minute topo map), 10 miles NNW of Patagonia and 2½ miles north of the Anaconda camp, near the head of the south fork of Casa Blanca (formerly Josephine) Canyon, at an elevation of 5,750 feet, on National Forest land. First worked in 1894. Owned by H.C. Hale, of Patagonia (circa 1910). Mr. J.F. Walker had unspecified involvement here (1918).
The deposits are contained in a 5 foot wide siliceous iron-stained vein which dips 80ºNW, in crudely bedded andesitic agglomerate and tuff which dip 40ºSE. The vein consists mainly of crushed tuffaceous andesite cemented by quartz, and the ore contains principally this gangue coated with azurite, malachite, and seemingly bromargyrite. Ore assays as high as 1,000 oz. Ag/T.
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3 entries listed. 3 valid minerals.
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