Owyhee Dam Historic District, Malheur County, Oregon
Rising over 400 feet and creating a reservoir of 1,200,000 acre feet of water, the Owyhee Dam was the tallest dam in the world at the time of its completion in 1932 and provided irrigation for over 105,000 acres of land in eastern Oregon and western Idaho. Located in a remote rugged canyon cut by the Owyhee River, the dam is considered nationally significant as the first in its type of high-arch concrete dam technology. The Owyhee Dam Historic District consists of the dam itself, a residential camp that housed workers, and a handful of related buildings and features that help tell the story of the dam’s original construction and early operation.
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