| Reference | {Deposit:: FOOTE, A. B., 1941 , THE PRICE OF GOLD: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , P. 454 .}{Deposit:: JOHNSTON, W. D., 1940 , THE GOLD QUARTZ VEINS OF GRASS VALLEY, CALIFORNIA: US GEOLOGICAL SURVEY PROFESSIONAL PAPER 194 , P. 91 .}{Production:: JOHNSTON, 1940} |