Latitude: 31°51'2"N
Longitude: 111°14'56"W
Ref.: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 135 (Table 4); Arizona Bureau of Mines file data.
USGS Twin Buttes Quadrangle topo map.
MRDS database Dep. ID file #10137578, MAS ID #0040190274.
A former underground Au-Ag-Pb-Zn-Cu mine located in East-central sec. 9 & West-central sec. 10, T.18S., R.11E., on land of unknown status. Owned at times, or in part, by McGee; and the Sierrita Mining & Ranching Co. (1956).
Mineralization is spotty, partly oxidized base metal sulfides in quartz fissure zone in Triassic and Cretaceous volcanics, cut by laramide andesite dikes. Near-surface enrichment of gold and silver.
Workings include shallow shafts and adits. Small intermittent production from 1921 to 1956, of some 170 tons of ore averaging about 1 oz. Au/T, 3 oz. Ag/T, 1% Pb and minor Cu.
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