Latitude: 33°13'54"N
Longitude: 114°32'48"W
Ref.: Farnham, L.L. & L.A. Stewart (1958), Manganese deposits of western Arizona, US Bureau of Mines Information Circular 7843: 81.
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: 180 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10183066, MAS ID #0040120025.
A former surface Mn mine located in the E½SW¼SE¼ sec. 20, T2S, R22W (protracted), on a military reservation. Owned/operated at times, or in part, by Tenny; and, the Western Exploration & Development Co.
Mineralization is psilomelane in bunches and veinlets along a fracture zone in Tertiary andesitic volcanics.
Workings include open cut and pit operations. Some 50-100 long tons of sorted 40%± Mn ore was shipped and 3,000 long tons of low grade Mn ore was sent for experimental concentration.
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