An image of an unidentified man standing on power generator equipment in the powerhouse at Hoover Dam. Boulder Dam was officially renamed Hoover Dam in 1947.
An image of airplanes flying over Boulder Dam and spelling the word "NAVY" for the dam's decennial. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of a burro standing on rocks near Hoover Dam. The dam's crest and intake towers are visible in the background. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of a burro standing on rocks near Hoover Dam. The dam's crest and intake towers are visible in the background. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of a young burro standing on rocks near Hoover Dam. The dam's intake towers are visible in the background. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image showing an aerial view of Hoover Dam and Lake Mead. Part of the plane from which the image was taken are visible. Note: Boulder Dam was officially renamed Hoover Dam in 1947.