Lockwood Mine

STATE OF CALIFORNIA CALAVERAS COUNTY, COUNTY REPORT #2,1962, P. 61 AND 163.MINERALS AND SCIENTIFIC PRESS, 3/17/1866, P. 162.IRELAN, WILLIAN JR., 1888, CALAVERAS COUNTY: CALIFORNIAMINING BUREAU REPORT 8, P. 138-141.TURNER, H. W., 1894, JACKSON FOLIO, CALIFORNIA: U.S.GEOLOGICAL SURVEY GEOLOGIC ATLAS OF THE U.S., FOLIO 11,P. 9.CRAWFORD, J. J., 1896, CALAVERAS COUNTY: CALIFORNIAMINING BUREAU REPORT 13, P. 111.KERR, M. B., 1900, REGISTER OF MINES AND MINERALS, COUNTYOF CALAVERAS, CALIFORNIA: CALIFORNIA MINING BUREAU.TUCKER, W. B., 1916, CALAVERAS COUNTY: CALIFORNIA MININGBUREAU REPORT 14, P. 90-91.LOGAN, C. A., 1923A, NOTES ON THE WEST POINT DISTRICT,CALAVERAS COUNTY: CALIFORNIA MINING BUREAU REPORT 18,P. 19 AND 21; 1936, REPORT 32, P. 269.U.S. BUREAU OF MINES MINERALS YEARBOOK, 1947-1949.