Trench at upstream toe of Boulder Dam foundation, looking toward Nevada side from top of Arizona bench nearly on center line. Elevation of bottom of trench, 503, marking lowest point in dam structure and fixing extreme height of dam at 729 feet.; 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: 3740px × 5346px
Photo credit: © Alpha Stock / Alamy / Afripics
License: Licensed
Model Released: No

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