Materials depict the construction of Boulder City, Nevada and the Hoover (Boulder) Dam from 1930 to 1935. The photographs primarily depict construction of the master planned community of Boulder City, which was built to house workers during the construction of the dam. The photographs also depict construction of the dam, surveyors working in Black Canyon and on the Colorado River, and buildings in Boulder City. The photographs also depict Williamsville, the small settlement that preceded Boulder City.

Materials depict hotels and casinos in Las Vegas, Nevada from approximately 1940 to 1959. The photographs primarily depict the Desert Inn, El Rancho Vegas, the Flamingo Hotel, the Hotel Fremont, the Last Frontier Hotel, the Riviera Hotel, the Sands Hotel, and the Thunderbird Hotel. The photographs also depict the Helldorado Days Parade in Las Vegas and the parade floats sponsored by hotels.