Latitude: 33°44'16"N
Longitude: 114°19'58"W
Refs.: Dale, V.B. (1959) Tungsten Deposits of Yuma, Maricopa, Pinal, and Graham Counties, Arizona. U.S. Bureau of Mines Report of Investigation 5516: 21-23.
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: 159 (Table 4).
Arizona Bureau of Mines file data.
Yale Peabody GNIS database.
MRDS database Dep. ID file #10210483, MAS ID 0040120183.
A former surface and underground W-Cu-Au mine located in the NE¼ sec. 33, T5N, R20W, on land of unknown status. Owned/operated at times, or in part, by the Copper Chief Mines Co.; and, Treuer.
Mineralization is weak copper carbonates and silicates, after cuperiferous pyrite, and spotty scheelite, associated with contact metamorphic mineralization, especially epidote, along a fault contact of Mesozoic schist and marblized limestone.
Workings include a shaft(s) and open cut operations. Prospected since 1910 but only mined for tungsten in 1955. It produced some 180 pounds of 73.3% WO3.
Mineral List
2 entries listed. 2 valid minerals.
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