EE WAS OPERATING A DOZER ON THE LEACH PAD, PUSHING ORE INTO PLACE. HE STATED THE TRACKS OF THE DOZER SLIPPED ON ROCK WHEN HE WAS PUSHING UP A FACE OF ORE. WHEN THE DOZER SLIPPED, THE SUDDEN STOP JOLTED HIM AND RESULTED IN SEVERE BACK PAIN. HE HAS NOT RETURNED TO WORK AT THIS TIME AND WILL SEE THE DOCTOR AGAIN ON 02/19/04.