A FALL WAS DISCOVERED DURING THE WEEKLY EXAMINATION OF THE 1 SOUTH PANEL AT SURVEY STATION 2500.THE FALL WAS NEAR THE TOP END OF THE PANEL IN THE #7 ENTRY. ABOUT 4,000' FROM THE ACTIVE SECTION . THE FALL MEASURED APPROX. 150'L X 20'W X 6'H. THERE WERE NO INJURIES OF EQUIPMENT INVOLVED.