GRUNWALD ROSS R 1970 GEOLOGY AND MINERAL DEPOSITS OF THE GALING DISTRICT BLACK HILLS SOUTH DAKOTA PH D THESIS SOUTH DAKOOL OF MINES AND TECHNOLOGY 323 PPIRVING J D 1904 ECONOMIC RESOURCES OF THE NORTHERN BLACK HILGEOLOGICAL SURVEY PROF PAPER 26 200 PPSHAPIRO,LEWIS H AND GRIES,J.P.1970 ORE DEPOSITS IN ROCKS OFIC AND TERTIARY AGE OF THE NORTHERN BLACK HILLS S D, U S GEOSURVEY HEAVY METALS PROGRAM CONTRACT # 14-08-0001-10650.U S BUREAU OF MINES 1954 BLACK HILLS MINERAL ATLAS,SOUTH DAKRT I: WASHINGTON D C U S BUREAU OF MINES IC 7688 123 PP