An unplanned roof fall in an inactive area has occurred in the Wyoming No. 2 Mine inby spad 3673 extending to spad 3781 between the 2 blocks. The fall is approximately 70 feet long by 19 feet wide and 7 1/2 in height. This area of the mine was developed approximately 11/201/2013. No injuries, no equipment involved. No ventilation controls were effected.