Original photograph: 13 x 10 cm, color photograph, caption under photo reads “CN-12-201-499NA Klamath Project - Oregon-California Closed Drain Construction, Tule Lake, Sump 3 Specs. 200C-910 - Patterson Constr. Co., Contractor D-8 dozer filling open drain and track rolling. November 1974 USBR photo by D. W. Stein" from Black Binders Digital reproduction of photograph: CN-12-201-499NA Klamath Project - Oregon-California, Black Binders, Bureau of Reclamation
