Handwritten note on back of photo: "Old Wagon wheel on trail near Las Vegas, Nevada - by Doris Hancock - 1940." Stamp on back of photo: "Insist on Riley's Perfect Prints Jul 1, 1940 Guaranteed to Please."
Text on front of post card: "New Union Pacific Station, Las Vegas, Nevada; Gateway to Boulder Dam; Copyright Boulder Dam Service Bureau." Text on back of postcard: "The new passenger depot of the Union Pacific in Las Vegas, Nevada, is the world's first streamlined, completely air-conditioned railroad passenger station. Typically modernistic western in motif, the structure has been described by architects as one of the most beautiful in design and superlatively complete in appointments, in the United States. Desert Souvenir Supply, Boulder City, Nevada."
Postcard showing the site in Black Canyon where Hoover Dam was originally meant to be built. The name evolved from "Black Canyon Dam" to "Boulder Dam" and was officially named Hoover Dam in the late 1940s. Note on front of post card: "Looking upstream Colorado river Black Canyon Dam Site"; Handwritten note and diagram on back of photo: "Hold this to light and you can get some idea of dimensions of dam."