AN UNPLANNED FALL OCCURRED AT THE ENTRANCE TO THE MINE (#4 ENTRY) THAT TOOL OUT THE CANOPY AND FALL WENT INBY FOR APPROX 10' IN LENGTH, 15' WIDE, 6' PLUS HIGH. DID NOT AFFECT ANY EQUIPMENT OR VENTILATION. AREA HAD BEEN BOLTED WITH 6' COMBINATION BOLTS ALONG WITH WOODEN XBARS FOR SUPPLEMENTAL SUPPORTS.