Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1710 - Klamath Project. "N" Canal Improvement. Dragline filling puddle trench with material from "N" Canal. Dorwin Grise, Photo. July 8, 1948", from Black Binders Digital reproduction of photograph: KP-1710 - Klamath Project. "N" Canal Improvement, Black Binders, Bureau of Reclamation