| Reference | {Deposit:: LINDGREN, W., 1894 , THE GOLD-SILVER VEINS OF OPHIR, CALIFORNIA: 14TH ANNUAL REPORT OF THE UNITED STATES GEOLOGICAL SURVEY, PART 2 , P. 264 .}{Deposit:: WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 335 - 6 .} |