Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1693 - Klamath Project - Lower Cost Canal Lining. Dragline placing 18" earthcover over MC-O asphalt lining in J-3 Lateral. D. Grise, Photographer. April 16, 1948", from Black Binders Digital reproduction of photograph: KP-1693 - Klamath Project. Lower Cost Canal Lining, Black Binders, Bureau of Reclamation