Latitude: 33°39'37"N
Longitude: 114°3'47"W
‡Ref.: Bancroft, H. (1911), Reconnaissance of the ore deposits in northern Yuma County, Arizona, USGS Bull. 451: 89-90.
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: 168 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10102544, MRDS ID #M003929; and, Dep. ID #10113495, MAS ID #0040120224.
A small former surface and underground Au-Ag-Pb-Cu-Fe mine located in East-central sec. 25 and sec. 19, T4N, R18W, 11 miles E of Quartzsite, on BLM-administered land. Owned at times, or in part, by Smith; and, Simpson.
Mineralization is free, coarse gold with some primary and secondary lead minerals and minor oxidized copper in a quartz-limonite gangue in a stringer vein in a fault zone in Paleozoic quartzite sediments cut by diorite dikes. Possibly some pyrargyrite also present. The ore bodies are irregular, strike S25E, and dip vertically.
The deposit has been prospected by a short vertical shaft in addition to several surface cuts. This mine was worked in the early 1900's with minor production and from 1935 through 1951, producing an estimated 100 tons of ore averaging about 1 oz. Au/T, 2 oz. Ag/T, 1% Pb and 0.1% Cu.
Mineral List
9 entries listed. 8 valid minerals.
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