Latitude: 37°43'17"N
Longitude: 120°27'14"W
A former Cu-Au-Ag mine located in sec. 30, T2S, R14E, MDM, (also in sec. 31 ?), 4 miles SE of Cooperstown.
Mineralization is hosted in porphyry and is associated with a quartz dike on the eastern wall, 30-40 feet wide, which crops out on the surface and is traced for over 350 feet.
Production data are found in: Logan, C.A. (1928): 7.
References
Aubury, Lewis E. (1908), The copper resources of California: California Mining Bureau. Bulletin 50: 250-251.
Logan, Clarence August (1928), Tuolumne County, Butte County: California Mining Bureau. Report 24: 7.
Logan, Clarence August (1949), Mines and mineral resources of Tuolumne County, California: California Journal of Mines and Geology: 45: 54.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 112, 130, 134, 343.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 96, 99.
Mineral List
6 entries listed. 6 valid minerals.
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