AN UNINTENTIONAL ROOF FALL OCCURRED (WAS FOUND) ON 3/11/02 AT APPROX. 10AM. THE ROOF FALL WAS FOUND OUTBY THE C-5 LONGWALL, CLOSE OUT FACE APPROX. 100 PLUS FEET. THE FALL MEASURED TO BE APPROX. 10-12'HIGH, 20'WIDE, 100'LONG. THE AREA WAS DANGERED OFF MSHA NOTIFIED AND AN INVESTIGATION CONDUCTED.