THE EE WAS PREPARING TO LOAD HIS HAUL TRUCK UNDER THE LOAD CHUTE. WHEN HE OPENED THE CHUTE DOOR TO SEE IF IT WAS LOADED, A LOAD WAS DUMPED INTO THE CHUTE AND ROCK CAME DOWN, STRIKING HIS LEFT HAND. HE WAS TAKEN TO THE ER FOR EVALUATION AND TREATMENT. THE LACERATION WAS CLOSED WITH SUTURES AND THE EE WA SRLEASED TO FULL DUTY.