Original photograph: 13 x 10 cm, color photograph, caption under photo reads “CN-12-200-70A Klamath Project, Oregon-California. Closed Drain Construction - Tule Lake Sump 3 - Specs. No. 200C-857, Don E. Johnson Construction Company, Contractor. View of trencher and hopper. 10-11-72 Bureau of Reclamation photo by D.W. Stein" from Black Binders Digital reproduction of photograph: CN-12-200-70A Klamath Project - Oregon-California, Black Binders, Bureau of Reclamation
