Postcard with an illustration of men working by the entrance a diversion tunnel. The caption reads: "Entrance to of one of the four 56 foot diversion tunnels."
Illustration on a postcard of giant tunnels creating diversions for the Colorado River during the construction of Hoover Dam. The caption reads: "Diverting the Colorado River through giant tunnels."
Postcard with an illustration of Fremont street looking west at the hotels, stores, and traffic. The typed caption reads: "Looking west on Fremont Street, Las Vegas." Site Name: Fremont Street (Las Vegas, Nev.) Street Address: Fremont Street
Illustration of Boulder Dam, later called Hoover Dam, construction. Caption reads: "A close-up, showing construction detail, Boulder Dam, Colorado River."
Illustration the of a train and people standing near it. Caption reads: "Union Pacific Miracle Train passing through a 30 foot intake pipe, Boulder Dam project."
Illustration of Boulder City, in which many houses and neighborhoods can be seen. The caption reads: "Boulder City, Nevada. A model city built to house the workmen engaged on the Boulder Dam [later known as the Hoover Dam] Project."
Guest house and main building of Scotty's Castle. The National Park Service bought the private property in 1970 and it is now a part of Death Valley National Park. Site Name: Scotty's Castle (Death Valley, Calif.)