| Reference | {Deposit:: Clark, L. D., 1960, Foothills fault system, western Sierra Nevada, California: Geological Society of America Bulletin, v. 71, p. 483-496.}{Deposit:: Clark, W.B., 1970, Gold districts of California: California Division of Mines and Geology Bulletin 193, p. 101.}{Deposit:: Hobson, J.B. and Wiltsee, E.A., 1893, Columbia Hill district: California State Mining Bureau Report 11, p. 305-308.}{Deposit:: Irelan, W., Jr., 1888, Columbia Hill district: California State Mining Bureau Report 8, p. 444-447.}{Deposit:: Lindgren, W., 1900, Colfax folio: U.S. Geological Survey Atlas of the U.S., Folio 66, 10 p.}{Deposit:: Lindgren, W., 1911, Tertiary gravels of the Sierra Nevada: U.S. Geological Survey Professional Paper 73, p. 139.}{Deposit:: MacBoyle, E., 1919, Nevada County, North Columbia mining district: California State Mining Bureau Report 16, p. 48-51.}{Deposit:: 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.}{Deposit:: Yeend, W.E., 1974, Gold-bearing gravel of the ancestral Yuba River, Sierra Nevada, California: U.S. Geological Survey Professional Paper 772, 44 p.}{Deposit:: Additional information on San Juan Ridge is contained in File No. 331-9312 (CGS Mineral Resources Files, Sacramento)} |