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Lee Mine (Emigrant Mine; Silver Reid prospect; Silver Reid Mine), Maltese Hill, Santa Rosa Hills, Lee District, Inyo Co., California, USA

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A former Zn-Pb-Ag-Cu-Au mine located in secs. 23 & 26, T17S, R40E (MDM), 1.0 km (0.6 mile) N of Maltese Hill summit), on National Park Service wilderness land (Death Valley National Park/Death Valley Wilderness). Operated during the periods 1920, 1936-1937, 1951 & 1953. MRDS database stated accuracy for this location is 10 meters. Alternate coordinates provided: 36°26'46"N, 117°36'47"W.

Mineralization is hosted in limestone. The ore body is lenticular in form, strikes E and dips 70N. Irregular lenses occur along a series of parallel veins in the mineralized zone 400 feet wide and 1,000 feet in length. The ore occurs as chlorides and chloro-bromides. Mineralization of Ag ores is found along seams, fractures and bedding planes of the limesdtone. Local rocks include Carboniferous marine rocks, unit 2 (SE California Carbonate Assemblage).

Workings include surface and underground openings comprised of a number of shafts and open cuts. The deepest shaft is 80 feet and an open stope exists to a depth of about 80 feet.

Production data are found in: Goodwin, J.C. (1957): 484.

Then dumps were reported to carry 22 ounces Ag/ton. Hand picked ore shipped in 1951 averaged 67.5 ounces Ag, 1.8% Pb, 19% Zn, plus recoverable Cu & Au.

Mineral List

13 entries listed. 12 valid minerals.

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Tucker, W. Burling (1926), Copper: California Mining Bureau. Report 22: 488.

Goodwin, Joseph Grant (1957) Lead and zinc in California. California Journal of Mines and Geology: 53(3&4): 483-484.

Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51, 77 pp.: 18, 48, 53, 55-57.

Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: SGS PP 368: 64, 75.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 84, 123, 174.

Pemberton, H. Earl (1983), Minerals of California: 48, 292, 300, 513.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10076629 & 10236594.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060270153.

Mineral and/or Locality  
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