AN UNINTENTIONAL ROOF FALL OCCURRED ON THE UNIT 2 WORKING SECTION AT THE +1750 FOOT MARK OF THE NO.4 ENTRY. THE FALL OCCURRED DUE TO FAILURE AT AND BELOW THE ANCHOR POINT. A SLIP WAS PRESENT I N THE AREA AND THE AREA HAD BEEN SUPPORTED BY 4', 5', AND 6' CONVENTIONAL TYPE ROOF BOLTS. THE FALL AREA WILL BE REINFORCED, THE FALL CLEANED UP AND SUPPORTED. THE FALL MEASURED 30' X 40' X 6