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Bald Eagle Mine, Independence, Railroad Flat District, East Belt, Calaveras Co., California, USA

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A former lode Au mine located in the NW¼ (estimated) sec. 23, T6N, R13E, MDM, 1.6 km (1.0 mile) NNW of Independence (on the ridge on the S side of the South Fork Mokelumne River, 1¾ miles N of Railroad Flat). Operated during the 1870's, 1880's & 1890's. MRDS database stated accuracy for this location is 100 meters.

NOTE: USGS MRDS file #10029333 presents geographic coordinates of 120.51351W, 38.27547N, which places the mine in sec. 23, T5N, and is in obvious error. The correct latitude value is found in MRDS file #10235172.

Mineralization is a vein deposit hosted in mica schist. The ore body is a vein 1½ to 13 feet thick (3.96 meters maximum) with a nearly vertical dip. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).

Workings include underground openings comprised of adits and a winze.

Production data are found in: Clark, Wm. B. & P.A. Lydon (1962).

No production record was found. Prospected again around 1925 and again during the period 1934-1935.

Mineral List



2 entries listed. 2 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

Mining and Scientific Press (1870), (7/9/1870): 28.

Mining and Scientific Press (1891), (8/15/1891): 98.

Logan, Clarence August and Franke, H. (1936), Mines and Mineral Resources of Calaveras Co.: California Division of Mines, California Journal of Mines & Geology: 32(3): 297.

Clark, Wm. B. & P.A. Lydon (1962), Mines and mineral resources of Calaveras County, California: California Division of Mines & Geology County Report 2; [… Geological Society of America Proceedings, 1933: 312-313, 1934]: 38-39, 136, Pl. B.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 16 (map 2-6).

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10029333 & 10235172.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060090656.

Mineral and/or Locality  
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