Caption at bottom of postcard reads: 150 man transport- Boulder Dam Bureau of Reclamation Photo." Boulder Dam was officially re-named Hoover Dam in 1947.
Caption at bottom right hand corner of image reads: "Upstream face of Boulder Dam showing intake towers and Arizona observation point." Boulder Dam was officially re-named Hoover Dam in 1947.
An image of the downstream face of Hoover Dam in Black Canyon. Automobiles are visible in an observation area, and some of the electric transmission towers are visible in the foreground. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of water flowing over one of the Hoover Dam spillways. Electric transmission towers in Black Canyon are visible in the background, and automobiles are parked in an observation area in the foreground. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of electric transmission towers in Black Canyon angled over the downstream side of Hoover Dam. The intake towers and traffic on the road over the dam face are visible. Note: Boulder Dam was officially renamed Hoover Dam in 1947.