| Reference | {Deposit:: LINDGREN, W., 1894 , THE GOLD-SILVER VEINS OF OPHIR, CALIFORNIA: 14TH ANNUAL REPORT OF THE UNITED STATES GEOLOGICAL SURVEY, PART 2 , P. 251 , 253 .}{Deposit:: UNITED STATES GEOLOGICAL SURVEY, 1894 , GEOLOGIC ATLAS OF THE UNITED STATES: SACRAMENTO FOLIO, CALIFORNIA, NO. 5 , ECONOMIC GEOLOGY SHEET.}{Production:: LINDGREN ( 1894 )} |