Hoover (Boulder) Dam - Arizona, Nevada
Upper left: View of Dam from river-level downstream, flanked by towering canyon walls, shows powerhouse at base of Dam.
Upper right: Interior of Nevada Wing Powerhouse, showing 7 generators, each with a capacity of 82,500 KVA.
Lower left: Hoover Dam and Lake Mead from Nevada side of Black Canyon. 150-ton cableway is shown in operation.
Lower right: View form Airzona side shows four 385-ft. high intake towers almost completely submerged in Lake Mead.
Constructed by the U.S. Department of the Interior, Bureau of Reclamation. Located on the Colorado River at the Nevada-Arizona boundary.