| Reference | {Deposit:: ROBERTSON, A. F., AND ROBY, R. N., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), JUDITH BASIN COUNTY, MONT.: U.S. BUREAU OF MINES INF. CIRC. 7602, 48 P.}{Deposit:: WITKIND, I. J., 1973; IGNEOUS ROCKS AND RELATED MINERAL DEPOSITS OF THE BARKER QUADRANGLE, LITTLE BELT MOUNTAINS, MONTANA: U.S. GEOLOGICAL SURVEY PROF. PAPER 752, 58 P.}{Economic Factors:: YOUNG, F.M., CROWLEY, F.A., AND SAHINEN, U.M., 1962, MARKETING PROBLEMS OF SMALL BUSINESS ENTERPRISES ENGAGED IN LEAD AND ZINC MINING: MONTANA BUREAU OF MINES AND GEOLOGY BULLETIN 30, P. 27.}{Geology:: SPIROFF, KIRIL, 1938, GEOLOGICAL OBSERVATIONS OF THE BLOCK P MINE, HUGHESVILLE, MONTANA: ECONOMIC GEOLOGY, V. 33, NO. 5 P. 554-567.}{Geology:: WALKER, G.E., 1991, GEOLOGY OF THE BARKER MINING DISTRICT, JUDITH BASIN AND CASCADE COUNTIES, MONTANA, IN GUIDEBOOK OF THE CENTRAL MONTANA ALKALIC PROVINCE: MONTANA BUREAU OF MINES AND GEOLOGY SPECIAL PUBLICATION 100, P. 29-37.}{Geology:: BAKER, D.W., MCBRIDE, GWEN, AND DAHY, JAMES, 1991, FIELD GUIDE LITTLE BELT MOUNTAINS, IN GUIDEBOOK OF THE CENTRAL MONTANA ALKALIC PROVINCE: MONTANA BUREAU OF MINES AND GEOLOGY SPECIAL PUBLICATION 100, P. 145-162.}{Geology:: WEED, W.H., 1900, GEOLOGY OF THE LITTLE BELT MOUNTAINS, MONTANA, WITH NOTES ON THE MINERAL DEPOSITS OF THE NEIHART, BARKER, YOGO, AND OTHER DISTRICTS; ACCOMPANIED BY A REPORT ON THE PETROGRAPHY OF THE IGNEOUS ROCKS OF THE DISTRICT, L.V. PIRSSON: U.S. GEOLOGICAL SURVEY 20TH ANNUAL REPORT (1898-1899), PART 3, P. 257-581.}{Production:: USGS PROF. PAPER 752, P. 51} |