THE ABOVE MINE HAS EXPERIENCED A NON-INJURY UNINTENTIONAL ROOF FALL ON MMU 013-0 WORKING SECTIONIN #1 ENTRY IN THE LAST OPEN CROSS-CUT. THE FALL WAS APPROX 8 TO 10 THICK 20 FEET WIDE AND 30 TO 35 FEET LONG. ROOF WAS LAMINATED SLATE AND SANDSTONE. THE AREA WAS INITIALLY SUPPORTED WITH 48 INCH FULLY GROUTED RODS. NO EQUIPMENT WAS INVOLVED, NO PROPERTY DAMAGE.