Black and white image of the construction phase of the Boulder Canyon Project, also known as Hoover Dam. This image features a horse team outfit at the Boulder City branch of the Los Angeles and Salt Lake Railroad.
A view of the downstream face of Hoover Dam; from this angle, the power house can be seen at the base of the dam, along with diversion tunnel portals located in the foreground and cable wires suspended over the face of the dam.
From the Morgan Sweeney Photograph Collection (PH-00228). A-4, fluted diffuser for pressure relief valve energy absorber upon arrival at Hoover Dam, Nevada Cableway landing, circa 1951.