Original photograph: 15 x 9 cm, black & white photo, caption under photo reads "KP-2495-R2- Klamath Project - CLEAR LAKE WATERSHED. Looking west at Avanzino Reservoir Dam. Spillway section in right foreground; April 9, 1959. R.G. Pollen, Photo", from Black Binders Digital reproduction of photograph: KP-2495-R2- Klamath Project - CLEAR LAKE WATERSHED, Black Binders, Bureau of Reclamation