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

Postcard with an illustration of Hoover Dam. The caption reads: "Boulder Dam, as it will look when completed, Colorado River."

Illustration of Boulder Dam, later called Hoover Dam, construction. Caption reads: "A close-up, showing construction detail, Boulder Dam, Colorado River."

Postcard with an illustration of Boulder Dam view from Lookout Point. Boulder Dam was later renamed Hoover Dam.

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.)

Postcard of watchtower at Scotty's Castle. Scotty's Castle was bought by National Park Service in 1970 and it is now a property of Death Valley National Park.

Unidentified people (possibly the Kiel and George family) swimming in a lake at Kiel Ranch. Site Name: Kiel Ranch (North Las Vegas, Nev.)