Latitude: 32°6'5"N
Longitude: 110°5'3"W
‡Ref.: Cooper, J.R. (1950) Johnson Camp area, Cochise County, Arizona, in Arizona zinc and lead deposits, Part I: Arizona Bureau of Mines Bulletin no. 156: 30-39.
Cooper, J.R. & L.T. Silver (1964), Geology and Ore Deposits of the Dragoon Quadrangle, Cochise County, Arizona, USGS PP 416: 176.
Livingston, D.E., Damon, P.E., Mauger, R.L., Bennett, R., and Laughlin, A.W. (1967) Argon 40 in cogenetic feldspar-mica mineral assemblages: Journal of Geophysical Research: 72(4): 1361-1375.
Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 187, Index of Mining Properties in Cochise County, Arizona: 57 (Table 4).
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineraol Resources Open File Report 92-10: 4 (Table 1).
MRDS database Dep. ID file #10039380, MRDS ID #M050001; and, Dep. ID #10112412, MAS ID #0040030133.
A former underground Cu mine located in the center of sec. 27, T.15S., R.22E. (Dragoon 7.5 minute topo map),1½ mile W of the town of Johnson on the east slope of Johnson Peak, on private land. Owned by the Empire Gold & Copper Mining Co.
Mineralization is a replacement deposit with weak copper staining on joints and shears in Cambrian Abrigo Formation Cambrian shale, impure limestone and sandy dolomite and Bolsa Quartzite and in Precambrian Pinal Schist. Ore control was shear surfaces. An associated rock unit is the Texas Canyon Stock. Unmetamorphosed Bolsa and Abrigo formations are sheared and jointed. Copper stains occur along these joint & shear surfaces.
Local structures include Tertiary block faulting thrending NW. Regional Late Cretaceous or early Tertiary N- and NW-trending folds and thrust faults overriding the the NE.
Workings are extensive and include shaft(s) and adit(s). Shaft No. 1 is approximately 1,500 feet east of the 3 adits. The 3 adits have about 1000 feet of drifts and crosscuts. The adits also have a raise of 150 feet. Shaft No. 1 is now filled. There was little or no ore production.
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