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Millspaugh prospect (Big 4 Iron Nos. 1-3; Millspaugh Iron deposit; Millspaugh deposit), Millspaugh, Argus Mts (Argus Range), Inyo Co., California, USA

Latitude: 36°3'12"N
Longitude: 117°27'20"W
An Fe-Cu-Au-Ag-S-Silica occurrence located in sec. 9, T22S, R42E, MDM, 0.9 km (0.6 mile) NNE of Millspaugh, and 18 miles SE of Darwin, on military reservation land (China Lake Naval Ordnance Test Center). MRDS database stated accuracy for this location is 1,000 meters.

Mineralization is hosted hornblendite, granodiorite and porphyry. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).

Workings include unspecified surface openings/operations.

Mineral List


5 entries listed. 4 valid minerals.

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Tucker, W. Burling (1946), Current notes – Inyo County, San Bernardino County: California Division Mines (Report 42): 42: 319.

Norman, L.A. & Richard M. Stewart (1951), Mines and mineral resources of Inyo County, California: California Journal of Mines and Geology (Report 47): 47: 54.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 216.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 149.

Durbin, W.F., C. Neal, and C. Rodgers, mapping & sampling 4-20-8.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10163487.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060270193.

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