| Reference | {Deposit:: MESA HEALTH AND SAFETY INSPECTION REPORT FEBRUARY 8, 1973.}{Deposit:: NC GEOLOGICAL SURVEY.}{Deposit:: TRAPROCK QUARRY IS OPERATED BY ARARAT ROCK PRODUCTS COMPANY}{Deposit:: RCF LIST 10-81}{Deposit:: NOT ON 1980 OR 1981 MSHA LIST; ASSUME PAST PRODUCER} |