Reference | {Deposit:: AUSTIN GEORGE S., 1972, INDIANA GEOLOGICAL SURVEY, PAGE 9.}{Deposit:: MESA HEALTH AND SAFETY INSPECTION REPORT FEBRUARY 8-9, 1972.}{Deposit:: CLAY IS MINED FROM 7 FEET OF ILLINOIAN TILL.}{Deposit:: PLANT INCLUDES A MILL LOCATED AT THE QUARRY SITE.}{Deposit:: LIMESTONE IS QUARRIED FROM THE ORDOVICIAN CATHAYS FORMATION.} |