| Reference | {Deposit:: SHAPIRO,L H,AND GRIES J P,1970,ORE DEPOSITS IN ROCKS OF PALE}{Deposit:: ND TERTIARY A6E OF THE NORTHERN BLACK HILLS,S DAKOTA: US GEO}{Deposit:: HEAVY METALS PROGRAM,CONTRACT # 1}{Deposit:: 4-08-0001-10650}{Deposit:: U S BUREAU OF MINES,1954,BLACK HILLS MINERAL ATLAS, S DAKOTA}{Deposit:: I: WASH D C, US BUMINES IC 7688, 123 P} |