Latitude: 32°3'42"N
Longitude: 111°55'51"W
Ref.: Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 112 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10026804, MRDS ID #M000347; and. Dep. ID #10259305, MAS ID #0040190344.
A former small surface and underground Ag-Cu-Au mine located in the SW ¼ sec. 3, T.16S., R.4E. (protracted), 8½ miles W of Comobabi. Produced 1946-1949. Owned by Ernest Randolph; and the Picacho Mines, Inc.
Mineralization is a series of overlapping quartz-dolomite veinlike lenses containing native silver and spotty chalcocite and pyrite. Oxidized near the surface, in a fissure zone in Cretaceous (?) andesite flows.
Workings include an inclined shaft and pit. Worked during 1946-1949, producing a few tons of ore at about 28 oz. Ag/T and minor Cu & Au.
Mineral List
4 entries listed. 4 valid minerals.
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