| Reference | {Deposit:: CRIB MINERAL RESOURCES FILE, RECORD NUMBER K000934.}{Deposit:: MESA HEALTH AND SAFETY INSPECTION REPORTS FEBRUARY 24, 1972 AND}{Deposit:: MAY 21, 1975.}{Deposit:: PROPERTY IS OPERATED BY UNITED SIERRA DIVISION, CYPRUS MINESCORPORATION.OPERATION INCLUDES A MILL AT THE PIT. BALL CLAY IS MINED FROM THE MIDDLE EOCENE CLAIBORNE FORMATION.} |