Original photograph: 13 x 10 cm, black & white photo, caption under photo reads "P12-201-4458 NA Klamath Project, OR-CA Kl. Str. Dr. Enlargement, Phase II Specs. 200C-954- RHC Constr., Inc., Contractor Pumping Plant FF--north retaining wall section "B" of slab step section. Concrete placement in progress. Sept. 1977 USBR photo by D.J. Kline", from Black Binders Digital reproduction of photograph: P12-201-4458 NA Klamath Project, OR-CA, Black Binders, Bureau of Reclamation