Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1783-R2 - Miller Hill Pumping Plant showing timber substructure before backfilling. C. O. Wamstad, Photographer. 5-13-49", from Black Binders Digital reproduction of photograph: KP-1783-R2 - Miller Hill Pumping Plant showing timber substructure before backfilling, Black Binders, Bureau of Reclamation