Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1828-R2. Lost River Diversion Channel Headworks. Placing concrete in floor slab gate section. Looking upstream. C. O. Wamstad, Photo. July 13, 1949", from Black Binders Digital reproduction of photograph: KP-1828-R2. Lost River Diversion Channel Headworks, Black Binders, Bureau of Reclamation