Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1805-R2. Pumping Plant "D". Placing top mat of steel for base slab of pumping plant. Discharge tubes in the background are being backfilled. Mark D. Taylor, Jr., Photo. June 22, 1949", from Black Binders Digital reproduction of photograph: KP-1805-R2. Pumping Plant "D". Placing top mat of steel for base slab of pumping plant, Black Binders, Bureau of Reclamation