Public domain
Gates to navigation locks, Bonneville Dam, Oregon. This is a lift lock, seventy-five feet wide and five hundred feet long. This is the highest single lift lock in the world, being fifty-nine feet high
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineGates to navigation locks, Bonneville Dam, Oregon. This is a lift lock, seventy-five feet wide and five hundred feet long. This is the highest single lift lock in the world, being fifty-nine feet high. 1941-01-01. Lee, Russell. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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