P-12-200-3068NA Klamath Project - Oregon-California. View of receiving unit of Laser mounted on trencher to automatically maintain grade of closed drain installation; January 1975; USBR photo by D. W. Stein
Title
Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor
Original photograph: 13 x 10 cm, black & white photo, caption under photo reads “P-12-200-3068NA Klamath Project - Oregon-California Closed Drain Construction, Tule Lake Area, Sump 3 - Specs. 200C-910 - Patterson Constr. Company, Contractor View of receiving unit of Laser mounted on trencher to automatically maintain grade of closed drain installation. January 1975 USBR photo by D. W. Stein", from Black Binders Digital reproduction of photograph: P-12-200-3068NA Klamath Project - Oregon-California, Black Binders, Bureau of Reclamation
