| Reference | {Deposit:: JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY, NEVADA; NBMG BULL. 89}{Deposit:: TRENGROVE, 1959, RECONNAISSANCE OF NEVADA MANGANESE DEPOSITS; USBM REPT. INV. 5446}{Deposit:: NEEDHAM & TRENGROVE, 1950, INVESTIGATION OF BLACK DIABLO, BLACK EAGLE, & BLACK ROCK MANGANESE DEPOSITS, PERSHING & LANDER COUNTIES, NEV.; USMB REPT. INV. 4713}{Production:: JOHNSON, M.G., 1977.} |