Latitude: 31°24'56"N
Longitude: 109°54'6"W
‡Ref.: Wilson, E.D. & G.M. Butler (1930), Manganese ore deposits in Arizona, Arizona Bureau of Mines Bull. 127: 42 (footnote 26).
Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 19.
Creasey, S.C. and Kistler, R.W. (1962), USGS Professional Paper 450-D: D1-D5.
Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, Arizona: 85 (Table 4).
MRDS database Dep. ID file #10104075, MRDS ID #M241119.
A former small surface and underground Mn mine located in East-central (SE¼SE¼NE¼) sec. 21, T.23S., R.24E., about 900 feet South of the Cole shaft and West of the Atlas claim, approximately 1½ miles W of Warren, on private land.
Mineralization is a replacement deposit of hard manganese oxide masses in disconnected lenses along fissure zones in Naco Limestone. An associated rock unit is the Sacramento Hill Stock.
Workings include an adit(s) and surface openings. About 800 tons of sorted ore were produced around 1917-1918.
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