Caption at bottom right hand corner of image reads: "Upstream face of Boulder Dam showing intake towers and Arizona observation point." Boulder Dam was officially re-named Hoover Dam in 1947.
Caption at bottom of image reads: "Boulder Dam- downstream face and Nevada lookout point with Fortification Mountain in the background." Boulder Dam was officially re-named Hoover Dam in 1947.
The grayscale view of a crane from the Lewis Construction Company digging streets in Boulder City, Nevada. The sign on the side of the crane reads: "Lewis Constr. Co."