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Eldorado Mine (New Eldorado Mine), Monument Mountain, Hexie District, Hexie Mts, Riverside Co., California, USA

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Latitude & Longitude (WGS84): 33° 54' 56'' North , 115° 57' 23'' West
Latitude & Longitude (decimal): 33.9158333333, -115.956388889

A former Pb-Ag-Mo-Au-V-W occurrence/mine located in the SW¼NE¼NE¼ sec. 17, T3S, R10E, SBM, secs. 16 & 17, T3S, R10E, SBM, about 13.4 km NNW of Monument Mountain (summit), N of Fried Liver Wash, on the southern slope of the northern Hexie Mountains, on National Park Service land (Joshua Tree National Park) (previously private (patented) land. MRDS database stated accuracy for this location is 100 meters.

Mineralization is hosted in gneiss. Local rocks include Precambrian rocks, undivided, unit 2 (Mojave Desert and Transverse Ranges) and/or Precambrian granitic rocks, unit 1 (Eastern Mojave Desert).

Workings include unspecified underground openings (the topo map reflects 2 shaft symbols labeled "Eldorado Mine" at this point).

Brown (1923) reported small production during WWI.

Mineral List

5 valid minerals.

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.


Brown, J.S. (1923), The Salton Sea region, California: USGS, Water Supply Paper 497: 63.

Tucker, W. Burling & Reid J. Sampson (1929), Riverside County: California Journal of Mines and Geology, California Mining Bureau. (Report 25): 25: 485-486.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 348, 648, 898.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 163, 380, 389.

Saul, R.B., Evans, J.R., and Gray, C.H. (1968): Map of Riverside County, California, showing location of mines and mineral resources. California Division of Mines and Geology. In: Open File Report 68-7: Map No. 233.

Saul, R.B., Evans, J.R., and Gray, C.H. (1970) Mines and mineral resources of Riverside County. California Division of Mines and Geology County Report 9. Unpublished manuscript: 611.

California Division of Mines and Geology Open-File Report 77-14 (1977): 536-538.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 324, 340.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10008128 & 10212982.

U.S. Bureau of Mines Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060650036.

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