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Modoc Mine (Modock Mine), Lookout City, Lookout District (Modoc District), Argus Mts (Argus Range), Inyo Co., California, USA

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Latitude & Longitude (WGS84): 36° 14' 39'' North , 117° 25' 29'' West
Latitude & Longitude (decimal): 36.2441666667, -117.424722222
A former Pb-Cu-Mn-Ag-Au mine located in sec. 33, T19S, R42E, MDM, 0.9 km (0.6 mile) ESE of Lookout City, on Lookout Mountain (8½ air miles SE of Panamint Springs). MRDS database stated accuracy for this location is 10 meters.

Mineralization is hosted in limestone. ORE OCCURS IN FISSURES ADJACENT TO DIABASE DIKES AND SILLS. Associated rocks include diabase. Local rocks include Devonian marine rocks, unit 1 (Death Valley).

Workings include underground openings comprised of tunnels and shafts. The lower tunnel, driven SW for 1,800 feet has 2,000 feet of drifts. Tunnel No. 1 connected to tunnel No. 2 by a 560 foot raise. Tunnel No. 2 was driven SE for 500 feet, and has 1,200 feet of crosscuts and drifts. No. 3 tunnel is 600 feet driven S. The Modoc (No. 3) shaft is 600 feet deep with an inclined shaft of 200 feet.

Production data are found in: Goodwin, J. C. (1957): 491.

Since 1944 15,000 tons of dump materials have been shipped. Assays ran 2.37% to 11.07% Pb, 4 to 10% Zn, 0.45 to 12.83 ounces Ag and 0.03 to 0.12 ounces Au per ton.

Production statistics: Year: 1890: Ore: ^30 to 50% Pb, 50 to 200 ounces (3,529 grams) Ag and 0.25 ounces (7 grams) Au/ton.

Mineral List

14 entries listed. 13 valid minerals.

The above list 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.


Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp. (includes catalog of minerals of California pp. 63-410), and miscellaneous observations on mineral products): 71, 124, 368.

Tucker, W. Burling & Reid J. Sampson (1938), Mineral resources of Inyo County, California: California Journal of Mines and Geology: 34(4): 445-447.

Goodwin, Joseph Grant (1957) Lead and zinc in California. California Journal of Mines and Geology, Division of Mines: 53(3&4): 491.

Hall, Wayne Everett & Hal G. Stephens (1963), Economic geology of the Panamint Butte quadrangle and Modoc district, Inyo County, California: California Division of Mines & Geology Special Report 73: 24-36, 34.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 75, 93, 119, 123, 125, 163, 223, 303, 340.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 164, 167, 168, 210, 229, 299.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10076634 & 10212497.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060270158.

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