| Reference | {Deposit:: BEG, M.A., 1980, ACTIVE MINES AND QUARRIES OF ALABAMA: ALABAMA GEOLOGICAL SURVEY SPEC. MAP 176.}{Deposit:: STATE OF ALABAMA, 1980, DIVISION OF SAFETY AND INSPECTION - STATISTICAL ANNUAL REPORT, FISCAL YEAR 1980: DEPARTMENT OF INDUSTRIAL RELATIONS, 53 P.}{Production:: STATE OF ALABAMA, DEPT. INDUSTRIAL RELATIONS, FY 1980, P. 34.} |