Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-6. Klamath Project, Pumping Plant "D". View of concrete pouring on top lift of tunnel portal structure, taken from the scaffolding. M. D. Taylor, Jr., Photo. March 31, 1949", from Black Binders Digital reproduction of photograph: KP-6. Klamath Project. Pumping Plant "D", Black Binders, Bureau of Reclamation