Latitude: 31°54'57"N
Longitude: 111°17'45"W
Ref.: Ransome, F.L. (1922) Ore deposits of the Sierrita Mountains, Pima County, Arizona, in Contributions to Economic Geology (Short Papers and Preliminary Reports), 1921 - Part I.--Metals and Nonmetals except Fuels: U.S. Geological Survey Bulletin 725J: 416-417.
Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 119-121.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 131 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10210840, MAS ID #0040190017.
A former surface and underground Pb-Ag-Mn-Cu-Au-Mo mine located in the SE ΒΌ sec. 26, T.17S., R.10E. Discovered 1946. Owned and operated by Mr. George B. Breidler (1973). Owned by the Aguinaldo Mining Co., timeframe unknown.
Mineralization is veins and replacement lenses of oxidized manganese and sulfides, and wulfenite, in fractured and metamorphosed Paleozoic limestone.
Working include adits, shafts, and open cuts. Originally worked for silver prior to 1900, with minor, sporadic, subsequent production. Probably not more than 100 tons of high-grade Pb-Ag ore were produced, plus some Cu and hand-picked wulfenite.
Mineral List
5 entries listed. 5 valid minerals.
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