References
Clark, L. D., 1960, Foothills fault system, western Sierra Nevada, California: Geological Society of America Bulletin, v. 71, p. 483-496.Clark, W.B., 1970, Gold districts of California: California Division of Mines and Geology Bulletin 193, p. 128.Crawford, J.J., 1896, Nevada County, Spanish Mine: California State Mining Bureau Report 13, p. 264.Harwood, D.S., 1988, Tectonism and metamorphism in the northern Sierra terrane, northern California, in Ernst, W. G., editor, Metamorphism and crustal evolution of the western United States (Rubey Volume VII): Prentice-Hall, Englewood Cliffs, New Jersey, p. 764-788.Hobson, J.B. and Wiltsee, E.A., 1893, Nevada County, Spanish Mine: California State Mining Bureau Report 11, p. 292-293.Irelan, W., Jr., 1888, Nevada County, Washington mining district: California State Mining Bureau Report 8, p. 442-443.Lindgren, W., 1900, Colfax folio, California: U.S. Geological Survey Atlas of the U.S., Folio 66, 10 p.Lindgren, W., 1911, Tertiary gravels of the Sierra Nevada: U.S. Geological Survey Professional Paper 73, p. 139-141.Logan, C.A., 1930, Nevada County, Spanish Mine: California State Mining Bureau Report 26, p. 128-129.Logan, C.A., 1941, Nevada County, Spanish Mine: California State Mining Bureau Report 37, p. 428.Loyd, R.C. and Clinkenbeard, J, 1990, Mineral land classification of Nevada County, Califonia: California Dept. of Conservation, Division of Mines and Geology, Special Report 164.MacBoyle, E., 1919, Nevada County, Spanish Mine: California State Mining Bureau Report 16, p. 249.Additional information on the Spanish Mine is contained in File No. 331-9114 (CGS Mineral Resources Files, Sacramento) and in Mine File No. 91-29-0003 (California Department of Conservation, Office of Mine Reclamation)