Latitude: 34°28'56"N
Longitude: 111°51'25"W
A former underground Cu-Mo-Au-Ag-Pb-Zn mine located in secs. 30 & 31, T.13N., R.6E., 6 miles south of Camp Verde. Owned by the Squaw Peak Copper Mining Co. Located about 10 miles South of Camp Verde near Horner Mountain. Discovered 1944. Produced 1944-1946. Claims extend into sec. 30.
Mineralization is an elliptical stockwork hosted in the Squaw Peak Intrusive. Ore control was fractures and faulting. Concentration processes were hydrothermal and oxidation to depths of 50 feet. Alteration involved silicification, argillization, and potassic alteration.
The country rock is quartz diorite of Precambrian age and is cut by small quartz veins ranging from narrow stringers to veins several inches wide. Many of these veins are discontinuous and are barren of sulfides. Some of the veins trend NW and dip steeply SW; others trend NE and dip steeply NW or are vertical.
In the stockwork, molybdenite, chalcopyrite, and pyrite occur in the quartz and quartz diorite. The molybdenite, in small to large crystals, is erratically distributed; the chalcopyrite is more evenly distributed.
Area structures include dikes and pluton that elongates NNW, shears and brecciated zones.
In 1943 there were more than 4,000 feet of underground workings on 3 levels. The lower haulage adit was 1,935 feet long. About 305 feet above it was the main level adit, which had more than 2,000 feet of crosscuts and drifts. The upper adit, about 105 feet above the main level adit, was 280 feet long. An inclined shaft 76 feet deep connected the upper adit with the surface.
References
Anderson, C.A. (1943) Report on a Brief Examination of the Squaw Peak Copper & Molybdenum prospect, Yavapai County, Arizona (unpublished report).
Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 25.
Hill, J.M. (1949) Report on the Squaw Peak Copper Mine, Yavapai County, Arizona (unpublished report).
USGS & Arizona Bureau of Mines, and U.S. Bureau of Reclamation (1969), Mineral and Water Resources of Arizona, Arizona Bureau of Mines Bull. 180 (USGS Bull.871): 235.
Kirkemo, H., et al (1965), Investigations of Molybdenum Deposits in the Conterminous United States 1942-60, Contributions to Economic Geology, USGS Bull. 1182-E: E30-E31.
Cooksley (1971) Private Report for Phillips Petroleum.
Roe, R.R. (1976), Geology of the Sqauw Peak porphyry copper-molybdenum deposit, Yavapai County, Arizona, University of Arizona, M.S. thesis, 102pp.
Rocks & Minerals: 24: 254, 376-377.
Sawyer, M.B., Gurmendi, A.C., Daley, M.R., and Howell, S.B. (1992) Principal Deposits of Strategic and Critical Minerals in Arizona, U.S. Bureau of Mines Special Publication, 334 pp.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 302, 303.
Singer, D.A., Berger, V.I., and Moring, B.C. (2005): Porphyry Copper Deposits of the World: Database, Map, and Grade and Tonnage Models. USGS Open-File Report 05-1060.
Singer, D.A., Berger, V.I., and Moring, B.C. (2008): Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. US Geological Survey Open-File Report 2008-1155.
USGS Horner Mountain Quadrangle map.
Arizona Department of Mineral Resources Squaw Peak Copper Mine file.
MRDS database Dep. ID #10026923, MRDS ID #M001101; and, Dep. ID #10234618, MAS ID #0040251790.
Mineral List
12 entries listed. 10 valid minerals.
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