Black and white aerial view looking down Black Canyon at the Hoover Dam construction site. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of several men, including Frank Crowe, Superintendent of Construction, at the Hoover Dam construction site. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of two men standing in front of penstock tunnel piping at the site of Hoover Dam construction. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Postcard of the downstream face and powerhouses, Hoover Dam. Caption on back: "Hoover (Boulder) Dam showing Fortification Mountain." "P10567. Color by David Mills."
Black and white image of Hoover Dam with the following description (provided by Special Collections): "View of bank 287.5 KVV transformers along the ramp of the Arizona powerhouse. April 1941." Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of excavation activities at the bed of Hoover Dam. High scalers can be seen displaying their clinging skills on the walls of the Black Canyon. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Look-out point at Boulder Dam, now called Hoover Dam, where hundreds of visitors daily view the spectacular panorama of construction spread out before them. Site Name: Hoover Dam (dam)