Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1897 - Klamath Project. Lower cost canal lining. The beginning of backfill over-lining. The fill ranges between 1' to 1 1/2'. Andrew M. Bergloff, Photo. December 14, 1949", from Black Binders Digital reproduction of photograph: KP-1897 - Klamath Project. The beginning of backfill over-lining, Black Binders, Bureau of Reclamation
