EMPLOYEE WAS STANDING BESIDE A PIECE OF WIRE ROPE LYING ON THE GROUND WHICH WAS ATTACHED TO A BELT COUNTER WEIGHT WHICH HAD BEEN RAISED TO AN ELEVATED POSITION AND SECURED. AN0THER CABLE WHICH WAS BEING USED TO PULL THE SLOPE BROKE, AND SUBSEQUENT MOVEMENT CAUSED THE COUNTER WEIGHT TO FALL, PULLING IN THE ATTACHED CABLE WHICH AMPUTATED THE LOWER RIGHT LEG OF VICTIM.