Black and white image of the downstream face of Hoover Dam and its power plant at night, as seen from the lower portal road at the dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of a row of power generators under construction at Hoover Dam. Several men are working on one of them. Boulder Dam was officially renamed Hoover Dam in 1947.
An image of expelled water creating a rainbow mist over the Colorado River on the downstream side of Hoover Dam in Black Canyon. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image of the Hoover Dam intake towers. Electric transmission towers in Black Canyon are visible in the background. Note: Boulder Dam was officially renamed Hoover Dam in 1947.