An image of hydroelectric generators inside the powerhouse at Hoover Dam. A man standing next to one of the generators shows their scale. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
View at Colorado River area near Hoover Dam site. Photographer W.A. Davis disagrees with the identification. He says, "Hills west (10 miles) of Las Vegas, Charleston range in background. Petroglyphs on the rocks, Rocks are red and yellow."
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.
Day shift construction workers for Boulder Dam, now called Hoover Dam, entering transports at the upper portals for their return journey to Boulder City ten miles away. Site Name: Hoover Dam (dam)
Black and white image of Hoover Dam's crest and intake towers as seen from the Nevada upstream side. Note: Boulder Dam was officially renamed Hoover Dam in 1947.
An image showing a bird's eye view of cars driving on the crest of Hoover Dam. The text on the lower left corner of the image reads: Boulder Dam. Boulder Dam was officially renamed Hoover Dam in 1947.