Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1923 - Klamath Project. J-1 Flume and Bridge over Lost River. Andrew M. Bergloff, Photo. February 17, 1950", from Black Binders Digital reproduction of photograph: KP-1923 - Klamath Project. J-1 Flume and Bridge over Lost River, Black Binders, Bureau of Reclamation