Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1695 - Klamath Project. Lower Cost Canal Lining. Close-up of MC-O asphalt in J-3 Lateral before covering. D. Grise, Photographer. April 16, 1948", from Black Binders Digital reproduction of photograph: KP-1695 - Klamath Project. Lower Cost Canal Lining, Black Binders, Bureau of Reclamation