AN UNPLANNED FALL OF ROOF OCCURRED IN THE #1 ENTRY @ BREAK #8 ON #2 6' BELT - SPAD 120. NEAR RUM CREEK PORTAL. THE FALL MEASURED APPROX 90' X 20' 4' & WAS APPROX 15,400 FEET FROM THE ACTIVE FA CE. VENTILATION, PASSAGE OF PERSONS WAS NOT AFFECTED. FALL WAS BREAKERED OFF FROM ALL APPROACHES.