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MACBOYLEW, E., 1920, MINES AND MINERAL RESOURCES OF SIERRACOUNTY, IN SIXTEENTH REPORT OF THE STATE MINERALOGIST,CALIF. STATE MINING BUR., P. 55.WHITE,. W. W., III, AND OTHERS, 1983, MINERAL INVESTIGATIONOF THE EAST AND WEST YUBA RARE II AREAS (NOS. 5264 AND5172), SIERRA AND PLUMAS COUNTIES, CALIFORNIA: U. S.BUREAU OF MINES OPEN-FILE REPORT MLA 71-83, P.CA DIV. OF MINES AND GEOLOGY BULLETIN 193, 1970, P. 108.CA STATE DIV. OF MINES, 38TH REPORT OF STATE GEOLOGIST,1942, P. 16 AND 63.CA STATE DIV. OF MINES, 25TH REPORT OF STATE GEOLOGIST,1929, P. 196.