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Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine), Darwin, Darwin District, Darwin Hills, Inyo Co., California, USA

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A former Pb-Ag mine group located on the western side of the Darwin Hills.

While there were many mines and prospects within the Darwin District, most of the district's production has come from the larger and more important workings on the west side of the Darwin Hills which were ultimately consolidated and operated by the Anaconda Company as the Darwin Mine. These included the Bernon, Defiance, Essex, Independence, Intermediate, Rip Van Winkle and Thompson workings.

NOTE: Some of these same mines were later incorporated into another group termed the Darwin Mines. See MRDS locality file at:

Mineral List

Mineral list contains entries from the region specified including sub-localities

63 valid minerals.

Localities in this Region


This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Bradley, W.W. (1941), Thirty-seventh report of the State Mineralogist: California Division Mines (Report 37): 37: 602.

Pabst, Adolf (1952), A new locality for creedite: Rocks & Minerals: 27: 19.

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.

Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: USGS Professional Paper 368: 59, 64.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 296, 375.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 183, 190, 194, 285, 342.

Mineralogical Record (1984): 15: 17.

Economic Geology: 83: 395-404.

University of Wyoming, Anaconda Geological Documents Collection.

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