Original photograph: 13 x 10 cm, black & white photo, caption under photo reads “P-12-200-4004NA Klamath Project - Oregon-California Closed Drain Construction, Tule Lake Aoea, Sump 3 - Specs. 200C-910 - Patterson Constr. Co., Contractor Motor Patrol working sub-base material on County Line Road. March 1975 USBR photo by D. W. Stein", from Black Binders Digital reproduction of photograph: P-12-200-4004NA Klamath Project - Oregon-California, Black Binders, Bureau of Reclamation
