References
Clark, W.B., 1970, Gold districts of California: California Division of Mines and Geology Bulletin 193, p. 101-102.Crawford, J.J., 1896, Nevada County, Delhi Mine: California State Mining Bureau Report 13, p. 241, 266.Garthwaite, E.M., 1886, Nevada County, Delhi Mine: California State Mining Bureau Report 6, p. 50-51.Hobson, J.B. and Wiltsee, E.A., 1893, Columbia Hill District, Delhi Mine: California State Mining Bureau Report 11, p. 305-307.Irelan, W., Jr., 1888, Columbia Hill District, Delhi Mine: California State Mining Bureau Report 8, p. 444-447.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. 143-144.Loyd, R. and Clinkenbeard, J., 1990, Mineral Land Classification of Nevada County, California: California Dept. of Conservation, Division of Mines and Geology, Special Report 164.MacBoyle, E., 1919, Nevada County, Consolidated (Delhi) Mine: California State Mining Bureau Report 16, p. 147-149.Saucedo, G. J. and Wagner, D. L., 1992, Geologic map of the Chico Quadrangle: California Division of Mines and Geology Regional Map Series Map No. 7A, scale 1:250,000.Additional information on the delhi-St. Gothard Mine is contained in File No. 339-3009 (CGS Mineral Resources Files, Sacramento)