Color image of Hoover Dam looking upstream and showing the white water of the Colorado River below the spillway tunnel outlets. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of Hoover Dam's crest and a sailboat on Lake Mead, as seen from the Nevada upstream side of the dam. 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.
An image of a burro and a man 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.