An unplanned roof fall occurred in the #3 entry of 1 Right, 1 x-cut inby survey station #683. Fall was approximately 4' plus high, 19' wide, and 35' long. Area was timbered and dangered off. Did not affect any ventilation but did cover about 35' of belt and structure. Will not be cleaned up. Area was bolted with 4' compression bolts and was also center posted.