Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1687 - Klamath Project. Lower Cost Canal Lining. Close-up of J-3 Lateral. M-C-O oil lined section over asphalt membrane lining. D. E. Grise, Photo. April 5, 1948", from Black Binders Digital reproduction of photograph: KP-1687 - Klamath Project. Lower Cost Canal Lining, Black Binders, Bureau of Reclamation