Reference | {Deposit:: CALIFORNIA DIVISION OF MINES, 1943, ECONOMIC MINERAL MAP OF CALIFORNIA, NO. 5 MANGANESE: CALIFORNIA DIVISION OF MINES, SCALE 1:1,000,000}{Deposit:: CRITTENDEN, M.S., AND PAVLIDES, L., 1962, MANGANESE IN THE UNITED STATES: U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS RESOURCES MAP MR-23, SCALE 1:5,000,000.} |