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Last Chance Peak Mine (Last Chance Mountain Mine; El Capitan Mine; El Capitam Mine), Crater, Last Chance Range, Inyo Co., California, USA

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A former Hg mine located in sec. 22, T8S, R39E, MDM, 2.9 km (1.8 miles) N of Crater, and 4.3 km (2.7 miles) E of Last Chance Peak (coordinates of record) (prospects SW of Last Chance Spring), on National Park Service wilderness land (Death Valley National Park/Death Valley Wilderness). Originally mined by Native Americans. Owned by the Quad Metals Corp. (1969). Operated in 1968. MRDS database accuracy for this location is 10 meters.

NOTE: USGS MRDS database file #10103798 places this mine in sec. 2, T8S, R39E, MDM, at geographic coordinates 37°16'40"N, 117°39'46"W. There are no mining symbols on the topo maps for that location. The geographic coordinates provided in MRDS file #10187965 (sec. 22) relate to an area on the topo map with a shaft symbol and specified open pit mines, and several open mine symbols and access roads. It would appear that the data presented in file #10187965 are correct.

Mineralization is a deposit in an area of fossil hot springs along faults in Cambrian limestone and dolomite. Local rocks include Cambrian marine rocks.

Workings include unspecified surface and underground openings.

Produced a minimum of 1,000 flasks of Hg in 1968 plus 100 flasks in 1969. Closed in 1970.

Mineral List



5 entries listed. 5 valid minerals.

The above list contains all mineral locality references listed on mindat.org. 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 mindat.org 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.

References

Steward, Julian H. (1933), Ethnography of the Owens Valley Piute: University of California, Pub. Archaeology and Ethnology: 33: 233-338.

U.S. Bureau of Mines Minerals Yearbooks (1959-1973).

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 27, 148.

Hill, R.L. (1972), Geology and geochemistry of El Capitan mercury mine, Last Chance Range, Inyo County, California. Unpublished Master’s thesis, University of California, Los Angeles.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 115.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10103798 & 10187965.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060271255.

 
Mineral and/or Locality  
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