An unplanned roof fall was found at approx. 9:20AM at survey station #307. Fall was approx. 18'W., 35'L. and 4' plus high.Fall did not affect any ventilation, equi. or travelway. Area was timbered and dangered off. Fall area was bolted with 4' tension re-bar bolts with 5 rows across according to the approved Roof Control Plan.