Latitude: 33°42'42"N
Longitude: 113°35'41"W
‡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: 153 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10113852, MAS ID #0040120407.
A former underground Au-Ag-Cu-Pb-Zn-Fe mine located in the SE¼ sec. 4, T4N, R13W. Owned/operated at times, or in part, by the Rio del Monte Mining Co.; McCauley & Orberg; and, the Rio del Monte Mines, Inc.
Mineralization is lenticular shoots of quartz and limonite containing oxidized copper minerals and gold, and lenses and pods of partly oxidized lead and silver ores in vuggy quartz, in irregular veins cutting Precambrian granite-gneiss capped by some volcanic flows.
Mineral List
2 entries listed. 1 valid mineral.
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