| Reference | {Deposit:: EDWARDS, JR., J., 1971, MARYLAND I.C. 11, P. 14.}{Deposit:: MESA HEALTH AND SAFETY INSPECTION REPORT MAY 17, 18 AND 25, 1973.}{Deposit:: QUARRY IS OPERATED BY HARRY T. CAMPBELL SONS COMPANY, DIVISION OF}{Deposit:: FLINTKOTE COMPANY.OPERATION INCLUDES A PLANT.} |