Black and white image of Hoover Dam at night. Seventy-eight floodlights on top of the central section of the power plant project 93,500 watts on the face of the dam.
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 a man and a car near a Deputy United States Marshal sign at the entrance to the Boulder Canyon Project Federal Reservation in Nevada.