AN UNINTENTIONAL ROOF FALL OCCURRED ON THE GLATIA NORTH AT THE CROSSCUT BETWEEN ENTRY #1 AND #2, AT 4300' WEST ON THE 5TH WEST LONGWALL UNIT. THE FALL WAS APPROXIMATELY 40 FEET LONG, APPROXIMA TELY 18 FEET WIDE AND APPROXIMATELY 6 FEET THICK. THE FALL DID NOT AFFECT VENTILATION OR PASSAGEOF MINERS. THE FALL WILL BE CLEANED UP. FALL #18J.