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Black Canyon Gorge
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Construction at Hoover Dam site : Entrance to tunnel No. 4
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California Electric Power Corp. - Nevada-California Electric Co. - Construction at Hoover Dam site. - Entrance to tunnel No. 4 [marked in white chalk on wall of Black Canyon
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Hoover Dam Substation
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Hoover Dam Substation
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California Electric Power Corp. - Nevada-California Electric Power Co. - Hoover Dam Substation
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Hoover Dam Substation furnishing power for construction
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California Electric Power Corp. - Nevada-California Electric Power Co. - Hoover Dam Substation - furnishing power for construction
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Cableway carriage at Hoover Dam site
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California Electric Power Corp. - Nevada-California Electric Co. Cableway carriage at Hoover Dam site.
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Ladder way at Hoover Dam site
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California Electric Power Corp. - Nevada-California Electric Co. - Ladder way at Hoover Dam site
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