‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Prescott, AZ: 73.
Wilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 68-70.
Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 18.
Parker, F.Z. (1966) The Geology and Mineral Deposits of the Silver District Trigo Mountains, Yuma County, Arizona. Masters Thesis, San Diego State College.
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: 178 (Table 4).
Rocks & Minerals (1988): 63: 328.
Rocks & Minerals (1989): 64: 58.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 228.
MRDS database Dep. ID file #10095032, MRDS ID #M002452; and Dep. ID #10283497, MAS ID #0040120431.
A former underground Pb-Ag-Fe-Zn-Mo mine located in East-central sec. 11, T4S, R23W, north of the Black Rock Mine and east of the Pacific Mine, on BLM-administered land. Owned at times, or in part, by Cargill; Messrs. W.D. Riley, A.B. Ming & R.A. McPherson of Yuma (1933).
Mineralization and geology is similar to that of the Black Rock Mine. Small lead of quartz, iron oxide, manganiferous calcite with spotty bunches of partly oxidized galena and cavities filled with limonite and wulfenite crystals in a broad, brecciated fault zone offset by traverse faults and with siliceous cement. The wall rocks are metamorphosed schist. The fault zone strikes S.15ºW. and dips 45ºSE, but steepens somewhat with depth.
Workings include a tunnel more than 200 feet (76.2 meters) long; and an old shaft reported at about 200 feet (60.96 meters) deep. This claim was patented in 1881 and may have produced some silver ore in the early days.
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Map Reference: 33°5'30"N , 114°35'34"W
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Mineral List:11 entries listed. 9 valid minerals.
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