![Outside entrance to an elevator leading to the visitor center at Hoover Dam, which straddles the Arizona and Nevada borders on the Colorado River | Library of Congress Outside entrance to an elevator leading to the visitor center at Hoover Dam, which straddles the Arizona and Nevada borders on the Colorado River | Library of Congress](http://tile.loc.gov/storage-services/service/pnp/highsm/54400/54421v.jpg)
Outside entrance to an elevator leading to the visitor center at Hoover Dam, which straddles the Arizona and Nevada borders on the Colorado River | Library of Congress
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Hoover Dam, Nevada, USA - High Scaler Sculpture at the Visitor Center Editorial Stock Image - Image of energy, concrete: 159202474
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