A ROOF FALL WAS FOUND AT 6:10 AM ON 9/27/01. FALL MEASURED 20'WIDE, 40'LONG, 15'HIGH OCCURRED IN 4 WAY INTERSECTION ENTRY 2 XC 46 MAIN SOUTH. AREA WAS MINED FEB 1990 AND WAS BOLTED WITH 8'RESI N PINS. TRUSS BOLTS WERE ALSO IN PLACE. NO INJURY RESULTED. 100' OF HIGHLINE AND COMMUNICATION WIRE WERE LOST.