AN UNINTENTIONAL ROOF FALL OCCURRED ON THE MAIN EAST TRAVELWAY AT THE NO. 70 CROSSCUT. THE ROCK FELL FROM AROUND THE ROOF BOLTS ORIGINALLY AND THEN CONTINUED ACROSS THE ENTRY BY 5-18-01. THE A REA WILL BE RESUPPORTED AND THE FALL CLEANED UP.THE FALL MEASURED 10' BY 20' BY 3'. THE AREA HAD BEEN SUPPORTED WITH 5' CONVENTIONAL TYPE ROOF BOLTS.