References
Clark, W. B., 1970, Gold districts of California: California Divisions of Mines and Geology Bulletin 193, p. 69-77.Carlson, D.W., and Clark, W.H., 1954, Mines and mineral resources of Amador County, California: California Division of Mines and Geology, 50th Report of the State Mineralogist, p. 173-177.Duffield, W.A. and Sharp, R.V., 1975, Geology of the Sierra foothills melange and adjacent areas, Amador County, California: U.S. Geological Survey Professional Paper 827, 30 p.Lambert, E.F., 1948, The geology of the Old Eureka Mine, Sutter Creek, Amador County, California: unpublished M.S. thesis, Univ. of California, Berkeley, 71 p.Logan, C.A., 1921, Mines and mineral resources, Amador County - Old Eureka Mine: California State Mining Bureau, 17th Annual Report of the State Mineralogist, p. 411.Logan, C.A., 1927, Amador County - Old Eureka Mine: California State Mining Bureau, 23nd Report of the State Mineralogist, p. 176-178.Logan, C.A., 1934, Mother Lode gold belt of California: California Division of Mines Bulletin 108, p. 101-104.Norman, L.A., 1939, Operations at the Old Eureka Mine: Mining Tech., v. 3, no. 6, p 1-15.Schweickert, R.A., Hanson, R.E., and Girty, G.H., 1999, Accretionary tectonics of the Western Sierra Nevada Metamorphic Belt in Wagner, D.L. and Graham, S.A., editors, Geologic field trips in northern California: California Division of Mines and Geology Special Publication 119, p. 33-79.Spiers, J., 1931, Mining methods and costs at the Central Eureka Mine, Amador County, California: Bureau of Mines Information Circular 6512, 13 pp.Storms, W.H., 1900, The Mother Lode region of California: California Mining Bureau Bulletin 18, p 64-65.Zimmerman, J.E., 1983, The Geology and structural evolution of a portion of the Mother Lode Belt, Amador County, California: unpublished M.S. thesis, University of Arizona, 138 p.