Manhattan Mine Group, California District, Chiricahua Mts, Cochise Co., Arizona, USA
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Cooper, J.R. (1959) Reconnaissance geologic map of southeastern Cochise County, Arizona: U.S. Geological Survey Mineral Investigations Field Studies Map MF-213, 1 sheet, scale 1:125,000.
Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187: 53 (Table 4).
MRDS database Dep. ID file #10046199, MRDS ID #M241043; and, Dep. ID #10209944, MAS ID #0040030183.
A former small surface and underground Cu-Pb-Zn-Ag-Au mine located on 37 claims (1926), in secs. 3 & 10, T.17S., R.30E, about 2 miles SE of Hilltop. Owned by the Manhattan Development Co.
Mineralization is comprised of relatively weak base metal carbonates and sulfides with some high grade spots along a shear zone and as disseminations in metamorphosed Permian limestones and Cretaceous beds. Host rock units include the Naco group, Colina Limestone and Concha and Colina Formations.
Local structures include sediments tilted and metamorphosed with a strike of NW.
Workings are relatively shallow shafts and short tunnels. The deepest shaft is 80 feet deep; the longest tunnel is a 450 foot crosscut a small amount of ore was produced during 1926 and 1927.
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