Black and white aerial image of several high scalers at work at the Hoover Dam construction site, specifically in the location for the Arizona-side intake towers. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of the Union Pacific streamliner brought to the Hoover (Boulder) Dam site with special a train via Six Companies Inc. This corporation was formed through six different companies in order to build the Hoover Dam.
Black and white image of the Union Pacific streamliner brought to the Hoover (Boulder) Dam site with special a train via Six Companies Inc. This corporation was formed through six different companies in order to build the Hoover Dam.