Reference | {Deposit:: CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.; COUNTY REPORT 2 ; CALIF. DIV. OF MINES AND GEOLOGY, P}{Deposit:: KERR, M.B., 1900 , REGISTER OF MINES AND MINERALS, CALAVERAS CO.: CALIF. MIN. BUR., 27 P.} |