AN UNINTENTIONAL ROOF FALL OCCURRED IN THE #7 ENTRY OF SO WEST MAINS AT SURVEY SPAD #653 (NEUTRAL ENTRY). THE FALL MEASURED APPROX 40'LONG X 18' TO 20'WIDE X 5' TO 7'HIGH. AREA WAS DEVELOPED A PPROX 5-5-00 AND SUPPOETED WITH 5' RESIN & TENSIONED ROOF BOLTS. THE STRATA AT THE FALL AREA CONSISTED OF A LARGE SLICK ON SIDED HORSE-BACK MATERIAL. AREA WILL BE PARTIALLY CLEANED UP.