Operations on canyon walls; Scope and content: Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam, Boulder City, Nevada. General notes: This is a compilation of 6 photographs showing construction scenes. It bears an ink stain at the bottom of the panel.

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Size: 3564px × 5612px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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