Original photograph: 9 x 9 cm, black & white photo, caption under photo reads “P12-200-2939NA Klamath Project - Oregon-California Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor View of a completed closed drain line. Dec. 1972 Bureau of Reclamation photo by D. W. Stein", from Black Binders Digital reproduction of photograph: P12-200-2939NA Klamath Project - Oregon-California, Black Binders, Bureau of Reclamation
