The longest siphon in the world crosses the Malheur Valley. It carries water to the bench land beyond a division of the project called Dead Ox Flat. Malheur County, Oregon. General caption 66-67 #theMalheurValley #DeadOxFlat #MalheurCounty #Oregon #undefined #photography #DorotheaLange https://www.loc.gov/pictures/item/2017773969/