Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1970-Klamath Project. Lower Lost River Diversion Dam. Picture shows face of dam, debris, and undercut of apron. Sacramento USBR inspecting party, inspecting. Andrew M. Bergloff, Photo. June 8, 1950", from Black Binders Digital reproduction of photograph: KP-1970-Klamath Project. Lower Lost River Diversion Dam. Picture shows face of dam, debris, and undercut of apron, Black Binders, Bureau of Reclamation