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Irrigation
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Construction workers
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Drainage
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Excavating machinery
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Klamath Project (U.S.) -- History
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P12-200-2945NA Klamath Project - Oregon-California. Laser Beam Receiving Unit shown attached to trenching machine; December 1972; Bureau of Reclamation photo by D. W. Stein
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P12-200-2946NA Klamath Project - Oregon-California. View of Laser Beam Receiving Unit mounted on trencher. Note that the control panel for receiver unit is mounted to the left of controls for trencher; ...
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CN-12-200-64A Klamath Project - Oregon-California. Looking west at equipment developed and used by Contractor to excavate and install plastic drainage tubing in one operation. Note that the trencher tows ...
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