EMPLOYEE WAS AT #3 DRIVE DUMPING POINT CLEARING UP SPILL AT THE CHUTE CAUSED BY A PIECE OF DRAW ROCK THAT LODGED IN THE DUMP. HE USED A PIECE OF ANGLE IRON FOR A PRY BAR TO DISLODGE THE ROCK. AS THE MATERIAL CLEARED, THE BELT RESTARTED AND ANOTHER PIECE OF ROCK HIT THE END OF THE ANGLE IRON CAUSING IT TO CATCH HIM UNDER THE CHIN.