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Last Chance Mine, Deadwood, Deadwood District, Klamath Mts, Trinity Co., California, USA

Latitude: 40°44'40"N
Longitude: 122°44'33"W
A former lode Au-Zn-As-Pb mine located in sec. 2, T33N, R8W, MDM (UTM estimated. Unsurveyed for township, range and section. Location projected), 2.9 km (9,400 feet) NNW of Deadwood, along the South Fork Eastman Gulch. MRDS database stated accuracy for this location is 1,000 meters.

Mineralization is hosted in slate.The ore body dips 60-80S at a thickness of 0.61 meters. Controls for ore emplacement included a fault. Local rocks include Paleozoic metavolcanic rocks, unit 1 (Eastern Klamath Mountains).

Workings include underground openings comprised of a 220 foot adit, 250 feet of drifts and 1 stope. Worked for pockets.

Production data are found in: Brown (1913).

No specific production record found but claimed production of $20,000 was made (period values).

Analytical results: High-grade ore was reported.

Mineral List

Galena
Gold
Quartz
Sphalerite


4 entries listed. 4 valid minerals.

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References

Brown, G. Chester (1913), The Counties of Shasta, Siskiyou and Trinity: California Journal of Mines and Geology (Report 14): 14(4): 894.

Ferguson, Henry G. (1914a), Gold lodes of the Weaverville quadrangle, California: USGS Bulletin 540: 70-71.

Averill, Charles V. (1941), Mineral resources of Trinity County: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 82.

McCulloch, W.C., Oesterling, W.A., Spurck, W.H., & Tischler, M.S. (1964), Minerals for Industry, Northern California, Southern Pacific Company: Vol. II: 128.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10035910 & 10238303.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0061050457.

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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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