CN-12-201-191NA Klamath Project - Oregon-California. View of cinders being discharged onto a conveyor belt which, in turn, discharges the cinders into the hopper unit behind the trencher. The conveyor belt is powered by a small gasoline motor. The conveyor itself is towed forward by each dump truck as they move forward with the trencher; November 1972; Bureau of Reclamation photo by D. W. Stein