View looking upstream through Black Canyon showing downstream cofferdam and rock backwash barrier. Excavation in dam substructure and upstream cofferdam seen in background. Construction offices and shops seen on crests of cofferdams. Stoney gate structure at outlet portal of Diversion Tunnel No. 2 seen in lower left.; Scope and content: Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam, Boulder City, Nevada.

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Size: 5976px × 4183px
Photo credit: © Tango Images / Alamy / Afripics
License: Licensed
Model Released: No

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