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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
photCL SCE 07 - 02601

Hoover Dam Substation
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California Electric Power Corp. - Nevada-California Electric Power Co. - Hoover Dam Substation
photCL SCE 07 - 02607

Hoover Dam Substation
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California Electric Power Corp. - Nevada-California Electric Power Co. - Hoover Dam Substation
photCL SCE 07 - 02608

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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Railroad construction camp
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California Electric Power Corp. - Nevada-California Electric Co. - Railroad construction camp.
photCL SCE 07 - 02590

Hoover Dam Substation and construction camp
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California Electric Power Corp. - Nevada-California Electric Co. Hoover Dam Substation and construction camp.
photCL SCE 07 - 02587