AN UNINTENTIONAL ROOF FALL OCCURRED WAS DISCOVERED ON 6-13-00 AT 1100 AM AND 3 MAINS IN NO. 4 . ENTRY JUST OUTBY SURVEY STATION NO. 4408. THE AREA WAS DEVELOPED ON 4-5-00. THE FALL WAS APPROX. 18 FT WIDE X 50 FT LONG X 16 FT HIGH AND CONTAINUED 5FT. RESIN TENSION BOLTS. THE FALL WAS DANGERED OFF AND THE APPROACHES WERE CRIBBED.