At 8:10 am an unplanned roof fall was discovered measuring 30 ft in length x 20 ft. in width x 8 ft. in height. This area was dangered off and will be rehabilitated. The fall was called in and investigated by MSHA. Area of fall # 1 entry, 1 brk over from SS # 3153 or 1 brk inby SS # 3123.