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Keywords from Image Description:
Photograph of Electrical Wires of the Boulder Dam Power Units NARA . Local identifier AAB Department of the Interior National Park Service Branch of Still and Motion Pictures NARAAuthor Adams Ansel Photographer File PhotographofElectricalWiresoftheBoulderDamPowerUnits NARA tif tif File PhotographofElectricalWiresoftheBoulderDamPowerUnits