Original photograph: 13 x 10 cm, color photograph, caption under photo reads “CN-12-201-198NA Klamath Project - Oregon-California Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-842, Patterson Constr. Co., Contractor Scene showing refueling of trencher. Nov. 1972 Bureau of Reclamation photo by D. W. Stein", from Black Binders. Digital reproduction of photograph: CN-12-201-198NA Klamath Project - Oregon-California, Black Binders, Bureau of Reclamation
