| Reference | {Deposit:: LAWSON, D. C., 1973 , DIRECTORY OF MINING ENTERPRISES FOR 1972 : MONTANA BUREAU OF MINES AND GEOLOGY BULL. 88 , P. 22 .}{Deposit:: LAWSON, D. C., 1973 , DIRECTORY OF MINING ENTERPRISES FOR 1977 : MONTANA BUREAU OF MINES AND GEOLOGY BULL. 107 , P. 20 .} |