| Reference | {Deposit:: BAXTER, J. W., DESBOROUGH, G. A., 1965 AREAL GEOLOGY OF THE ILLINOIS FLUORSPAR DISTRICT PART 2: ILL. STATE GEOLOGICAL SURVEY CIRC. 385, 40 P.}{Deposit:: WELLER, J. M., GROGAN, R. M. ANDTIPPIE, F. E., 1952, GEOLOGY OF THE FLUORSPAR DEPOSITS OF ILLINOIS: ILL. STATE GEOL. SURV. BULL. 76}{Deposit:: MC GINNIS, L.D. AND BRADBURY, J.C., 1964, AEROMAGNETIC STUDY OF THE HARDIN COUNTY AREA, ILLINOIS: ILLINOIS STATE GEOLOGICAL SURVEY CIRCULAR 363, 12 P.}{Deposit:: 1942 GEOLMAP ILL.STATE GEOLOGICAL SURVEY, WELLER J. M.}{Deposit:: 1960 GEOLMAP ILL. STATE GEOLOGICAL SURVEY, BAXTERJ. W.}{Deposit:: 1964 GEOPHYS ILL. STATE GEOLOGICAL SURVEY; AEROMAG. SURVEY} |