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Rawhide Mine (Rawhide deposit; Paducah), Jamestown Mine (Jamestown group), Jamestown, Jamestown District, Mother Lode Belt, Tuolumne Co., California, USA

Latitude: 37°57'41"N
Longitude: 120°26'57"W
A former lode Au mine located in the SE¼SE¼ sec. 5 and in the NE¼NE¼ sec. 9, T1N, R14E, MDM, 2.6 km (8,400 feet) WNW of Jamestown (N of Table Mountain, on the western margin of Rawhide Flat, W of Pulpit Rock), on federal lands (federal lease; minerals only). Owned by the Pathfinder Gold Corp. (30.00%), Nevada (1986); Owned & operated by the Sonora Gold Mining Corp. (70.00%), Canada (1986). MRDS database stated accuracy for this location is 5,000 meters.

Mineralization is a vein deposit hosted in slate and serpentinite. The ore body strikes N34W and dips 75NE. The footwall is serpentine and the hanging wall is slate. The vein is as thick as 70 feet between the host rocks, but ore vein on the footwall side of the contact, separated by a thin layer of gouge averages 20 feet in thickness. This is the same ore vein mined in the NW-adjoining Rappahannock claim. The ore shoot trends N. Local rocks include undivided pre-Cenozoic metavolcanic rocks, unit 2 (undivided) and/or pre-Cenozoic metasedimentary and metavolcanic rocks undivided.

Workings include underground openings with an overall depth of 609.6 meters and comprised of a South, or main, shaft on the vein to a depth of 3,000 feet on a 6 degree incline. The second shaft is 1,000 feet N on the vein and is 400 feet deep. There are levels with drifts every 100 feet. Later development in 1921 proved worthless.

Production data are found in: Tucker, W. Burling (1914).

Reserves and resources data: Estimate year: 1986: Demonstrated 1,503,100 metric tons of ore. Au 2.274000 grams/metric ton (1986).

Mineral List

Dolomite
Gold
'Phengite
var: Mariposite'

Pyrite
Tennantite


5 entries listed. 4 valid minerals.

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References

Turner, Henry Ward & F.L. Ransome (1897), Description of the gold belt; description of the Sonora sheet: USGS Geol. Atlas, Sonora folio (No. 41), 7 pp.: 6.

Ransome, Frederick Leslie (1900), Description of the Mother Lode district, California: USGS Geol. Atlas, Mother Lode (No. 63), 11 pp.: 9.

Tucker, W. Burling (1914), Tuolumne County: California Journal of Mines and Geology, California Mines Bureau (Report 14): 14: 159-160.

Logan, Clarence August (1928), Tuolumne County: California Mining Bureau. (Report 24): 24: 36.

Logan, Clarence August (1934), Mother Lode Gold Belt of California: California Division Mines Bulletin 108, 221 pp.: 36, 171-178.

Logan, Clarence August (1949), Mines and mineral resources of Tuolumne County, California: California Journal of Mines and Geology (Report 45): 45(1): Pl. 8.

Eric, J.H., A.A. Stromquist & C.M. Swinney (1955), Geology and mineral deposits of the Angels Camp and Sonora quadrangles, Calaveras and Tuolumne Counties, California: California Division Mines Special Report 41: Pl. 2, 4.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 256, 364.

Clark, Wm. B. (1970a) Gold districts of California: California Division Mines & Geology Bulletin 193:

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 35 (map 2-21), 135.

Sonora Gold Mining Corp. (1990) EIS file, Jamestown Mine.

Mine Safety and Health Administration MSHA.DBF (1995): 03/95.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10034614 & 10141938.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0061090134 & 0061090892.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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