Latitude: 31°56'39"N
Longitude: 110°3'29"W
‡Ref.: Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 187, Index of Mining Properties in Cochise County, Arizona: 63 (Table 4).
Marvin, R.F., Stern, T.W., Creasey, S.C., and Mehnert, H.H. (1973) Radiometric ages of igneous rocks from Pima, Santa Cruz, and Cochise Counties, southeastern Arizona: U.S. Geological Survey Bulletin 1379, 27 p.
Kreidler, T.J. (1981) U.S. Bureau of Mines Open File Report Mineral Land Assessment (MLA) 35-82, 8 p.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 4 (Table 1).
Chatman, M.L. (1993) U.S. Bureau of Mines Open File Report MLA 30-93: p. 38, D30.
MRDS database Dep. ID file #10104059, MRDS ID #M241050; and, Dep. ID #10137103, MAS ID #0040030109.
A former small Pb-Zn-Cu-Ag mine located in the NW¼ sec. 24, T.17S., R.22E. (Knob Hill 7.5 minute topo map), approximately 1½ miles N of Knob Hill, on private land. Produced 1956-1964. Operated by Ligier, Perevil and Danvers.
Mineralization is bedded replacement deposits of oxidized base metal sulfides in Paleozoic limestone close to strong thrust faulting and Tertiary igneous intrusions. An associated rock unit is the Stronghold Granite.
Local structures include complex Tertiary faulting of Paleozoic and Cretaceous sediments; Tertiary intrusives. Closely folded rocks, thrusts, deep reverse faults with superimposed Oligocene metamorphism.
Workings are tunnel and surface openings. Over 200 tons of ore were shipped intermittently from 1956 to 1964.
Mineral List
21 entries listed. 17 valid minerals.
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