Reference | {Deposit:: CRAWFORD, J. J., 1894 , 12TH REPORT OF STATE MINERALOGIST: CALIF. JOUR. MINES & GEOL., P. 93}{Deposit:: LOGAN, C. A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P 306} |