A ROOF FALL OCCURRED IN 4 NORTH 3 PANEL AT 37 BLOCK IN ENTRIES 1 THROUGH 5. THE FALL WAS APPROXIMATELY 250' LONG BY 6 FEET HIGH WITH AN UNKNOWN DEPTH. THE ACTUAL CAUSE OF THE FALL IS UNKNOWN. THE AREA HAS APPROXIMATELY 700 FEET OF COVER AND IS IN CLOSE PROXIMITY TO A STREAM BED.