Black and white image of H.O. Watts and others (possibly Bob Webb, Ann Helms and Barbara Russell) during an archeological excavation at Willow Beach near Lake Mohave.
Black and white image of H.O. Watts (right) and others (Bob Webb, Ann Helms and Barbara Russell) during an archeological excavation at Willow Beach near Lake Mohave.
Black and white image of the construction phase of Hoover Dam. The metal framework seen at the base of the dam will later become the dam's powerhouse. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of the construction phase of Hoover Dam. The metal framework seen at the base of the dam will later become the dam's powerhouse. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of the construction phase of Hoover Dam. The metal framework seen at the base of the dam will later become the dam's powerhouse. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of the completed Hoover Dam with water seen spilling through the Arizona penstock outlets. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of Black Canyon during the construction of Hoover Dam. Cable way elevators which transported the fathers of Hoover Dam to and from work can be seen, along with a pilot house on the Nevada side of the canyon. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image showing dynamite blasts being fired simultaneously for the locations of the Arizona (left) and Nevada (right) intake towers at Hoover Dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image showing a downstream view of the Hoover Dam construction site from the lower slope of the upper cofferdam. The excavation for the base of the Nevada intake towers can be seen in the upper right. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
Black and white image of Walker R. Young (right) and an unidentified individual standing beside a Department of the Interior/Bureau of Reclamation vehicle. Young was chief construction engineer on the Hoover Dam Project (Boulder Canyon Project) for the Bureau of Reclamation. Note: Boulder Dam was officially renamed Hoover Dam in 1947.