Frisco-Betty Lee-Ella J. Mine group, Barry M. Goldwater Air Force Range, Copper Mts, La Posa District (Wellton District; Wellton Hills District), Wellton Hills-Copper Mts, Yuma Co., Arizona, USA
A Cu-Au-Ag-Fe mine group located in the NW¼ sec. 2, T11S, R17W, on az military reservation. (protracted). Owned/operated at times, or in part, by the Arizona Consolidated Mining Co.; Swenson, Copple & McIntosh, and, Linden.
Mineralization is spotty secondary copper minerals in veinlets and coatings, in lensing and banded, coarsely crystalline, quartz-hematite-sericite veins along a fissure zone in Mesozoic granite. Quartz cut by calcite veins and wall rocks silicified and sericitized.
Workings include a shaft(s) and tunnel operations. They were worked intermittently from the early 1910's through 1939. They produced some 145 tons of ore averaging about 2% Cu, 0.3 oz. Au/T and 1.4 oz. Ag/T.
ReferencesWilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 166-167.
Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 160 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10259193, MRDS ID #M002516, MAS ID #0040270199.
Mineral ListMineral list contains entries from the region specified including sub-localities
6 entries listed. 4 valid minerals.
Localities in this Region
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