A FALL OF GROUND OCCURRED NEAR AN INTERSECTION ON THE 810 L. IT WAS ABOVE BOLT ANCHORAGE OF THE 7' SPLIT SETS AND MEASURED APPROXIMATELY 8' H X 15' W X 20' L. IT OCCURRED IN AN AREA THAT HAD A ""BELLY"" SHAPED BACK AND WHICH HAD BEEN MAKING WATER OFF AND ON. THERE WAS A MINER WORKING BEYOND THE CAVE-IN AND HE ESCAPED BY CRAWLING OVER THE MUCK PILE.