Latitude: 31°41'29"N
Longitude: 110°5'11"W
Ref.: Butler, B.S., Wilson, E.D., and Rasor, C.A. (1938b), Geology and ore deposits of the Tombstone district, Arizona, Arizona Bureau of Mines Bull. 143: 83.
Needham, A.B. & W.R. Storms (1956), Investigation of Tombstone district manganese deposits, Cochise Co., Arizona, US Bureau of Mines Report of Investigation 5188: 22, 29.
Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 29-30.
Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, AZ: 74.
Arizona Bureau of Mines files.
MRDS database Dep. ID file #10027104, MRDS ID #M002073; and, Dep. ID #10137021, MAS ID #0040030008.
A former small underground Mn-Ag-Cu mine located in the SE ΒΌ sec. 15, T.20S., R.22E, 2 miles S of Tombstone, on private land. Discovered 1941. Operated by the Tombstone Development Co. (1941).
Mineralization is small, vein-like replacement bodies of manganese oxides in blocks of Pennsylvanian-Permian Naco Group limestone along the footwall of the Prompter Fault at intersecting "northeast" fissures. A Mn-Ag mineralization phase occurred after an Fe-Pb-Zn mineralization phase.
Workings include a shaft(s). The footwall of the Prompter Fault has been explored for a distance of approximately 1200 feet. A small production of manganese ore was made in the early 1900's. Production statistics were included under the Tombstone group.
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