‡Ref.: 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: 157 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10113576, MAS ID #0040120635.
A former underground Au-Ag-Cu mine located in North-central (center N½)sec. 23, T3N, R20W, on land of unknown status. Owned/operated at times, or in part, by Carlson; and, McMillan Brothers.
Mineralization is small quartz veinlets and stringers with spotty gold, silver and minor copper minerals along bedding planes in Mesozoic sediments.
Workings include a shaft(s) and tunnels. It produced some 176 tons of ore averaging about 1 oz. Au/T, 0.2 oz. Ag/T and a few hundred pounds of copper, from 1936 through 1942.
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Map Reference: 33°35'34"N , 114°17'36"W
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