Black and white image of the gravel testing laboratory at the site of the former Stewart Ranch, also known as the Las Vegas Ranch. Site Name: Las Vegas Ranch (Las Vegas, Nev.)
Black and white image of the gravel testing laboratory at the site of the former Stewart Ranch, also known as the Las Vegas Ranch. Two of the people in the image are G. G. Walter and Henry Wieking. Site Name: Las Vegas Ranch (Las Vegas, Nev.)
Black and white image with the following printed description: Airplane motor propelled boat used in photographic survey of Colorado River between dam and Jumbo Wash.
Black and white image with the following printed description: View of Lake Mead, boat docks and bathing beach, showing development by National Park Service of area for bathing and picnicking.
Black and white image with the following printed description: Visit of Secretary Wilbur and party to Black Canyon Damsite. Party at St. Thomas, Nevada.
Black and white image with the following printed description: The late afternoon sun highlights the transmission lines from Hoover Dam as they sweep across the desert.