Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1560 - Klamath Project. Coppock Bay. M-2-a-2 Lateral Asphalt Membrane Lining. Three stages of lining. Dorwin Grise, Photographer. Sept. 26, 1947", from Black Binders Digital reproduction of photograph: KP-1560 - Klamath Project. Coppock Bay, Black Binders, Bureau of Reclamation