AN UNINTENTIONAL ROOF FALL OCCURRED IN THE #3 ENTRY AT #12 BREAK ON ""C""-SECTION. SIZE OF FALL WAS ESTIMATED TO BE 25'N X 25'L X 6'H (INTERSECTION). AREA HAD BEEN BOLTED WITH 6' RESIN BOLTS. NO INJURIES, NO EQUIPMENT CAUGHT, VENTILATION WAS NOT INTERRUPTED.