| Reference | {Deposit:: BEG, M.A., 1980, ACTIVE MINES AND QUARRIES OF ALABAMA: ALABAMA GEOL SURVEY SPEC. MAP 176.}{Deposit:: U.S. BUREAU OF MINES, 1980, SAND AND GRAVEL INDIVIDUAL RESPONDENT TOTALS IN COUNTIES OF ALABAMA: U.S. BUREAU OF MINES UNPUBLISHED DATA 4P.}{Deposit:: STATE OF ALABAMA, 1980, DIVISION OF SAFETY AND INSPECTION-STATISTICAL ANNUAL REPORT FISCAL YEAR, 1 980: DEPARTMENT OF INDUSTRIAL RELATIONS,53P.}{Production:: U.S. BUREAU OF MINES UNPUB. SAND AND GRAVEL PRODUCTION FOR ALABAMA COUNTIES, 1980, P.2} |