Looking upstream through Black Canyon toward Hoover Damsite showing extent to which lower level of canyon is choked with debris blasted and stripped from abutments and canyon walls. Outlet portal of diversion tunnel No. 2 and temporary backwash barrier seen in foreground.; Scope and content: Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam, Boulder City, Nevada.


Size: 3727px × 5365px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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