‡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: 287-288.
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 73 (Table 4).
Arizona Bureau of Mines file data.
A Ag-Pb-Cu-Au-Zn-Mo mine located in the SW ¼ sec. 35, T.22S., R.15E. Owned at times, or in part, by Stockton; Gray; and, Brown.
Mineralization is pockety, argentiferous galena, partly oxidized to cerussite, minor oxidized copper minerals, and wulfenite in a quartz and gouge gangue along a strong shear zone cutting altered and leached Precambrian metamorphic rocks, intruded by Jurassic granitic intrusive.
Workings include shaft and pit operations. Over 250 tons of Pb-Ag ore were mined in the late 1800's and up through 1937. The output for the group would be some 350 tons of ore averaging about 56 oz. Ag/T, 39% Pb, 1% Cu, and minor
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