SOMETIME BETWEEN 6 AND 9 PM WE HAD A ROOF FALL AT SPAD #240 IN THE RIGHT CROSS CUT OF THE #5 ENTRY OF THE NO 1 MAINS. I FELL FROM THE #5 ENTRY THROUGH THE CROSS CUT AND INTO THE #6 ENTRY ABOUT 10 FEET. FALL MEASURED 64'L X 18' 20'W X 4'THICK. NO PERSONNEL OR EQUIPMENT INVOLVED. AREA WAS TIMBERED OFF AND FALL WILL NOT BE CLEANED UP.