| Reference | {Deposit:: ILL. GEOLOGICAL SURVEY PRINTOUT, MESA LIST}{Deposit:: MALHOTRA, R, AND P.A. SMITH. DIRECTORY OF ILLINOIS MINERAL}{Deposit:: PRODUCERS-1974. ILLINOIS STATE GEOLOGICAL SURVEY, MINERAL}{Deposit:: NOTE 64, JULY 1976, P. 82.}{Deposit:: STATE OF ILLINOIS DEPT. OF TRANS., DIVISION OF HIGHWAYS.}{Deposit:: SOURCES AND PRODUCERS OF AGGREGATES FOR HIGHWAY}{Deposit:: CONSTRUCTION IN ILLINOIS. BULL. 23, 1973, P. 58.}{Deposit:: RCF LIST 10/81} |