Reference | {Deposit:: MSHA INSP. 4/30/75}{Deposit:: KENDALL AND MCGRAIN, MISCELLANEOUS ANLAYSES OF KENTUCKY}{Deposit:: CLAYS AND SHALES FOR 1960-1970: KENTUCKY GEOLOGICAL SURVEY}{Deposit:: SERIES X, 1972.}{Deposit:: RCF LIST 10/81}{Deposit:: DOES NOT APPEAR ON 80 OR 81 MSHA LISTS; ASSUME PAST PRODUCER} |