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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. Sourced from the Library of Congress.

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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. Sourced from the Library of Congress.

More