AN UNINTENTIONAL ROOF FALL OCCURRED AT THE MILLENNIUM PORTAL ENTRY #2 AT 4144'WEST, 3N HEADGATE.THE FALL WAS APPROXIMATELY 25-30' LONG, APPROXIMATELY 17 1/2 WIDE AND APPROXIMATELY 8-10'THICK. THE FALL DID NOT AFFECT VENTILATION OR PASSGAGE OF MINERS. THE FALL WILL BE CLEANED UP.