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 of an abandoned steam tractor. Description from Special Collections accompanying image: "According to the story told, this was one of the first three tractors ever built. One was shipped here to Eldorado Canyon to move ore and one was shipped to Death Valley for the Borax works (it is still in Death Valley). The other one was sent to South America to a mine. The one in Death Valley supposedly worked out fairly well being used mostly in sand. This one, it is told, was not too successful. The drive mechanism was by way of teeth on the inside of the big black wheels, driven by a pinion gear at the top. Small stones fell into the wheel and stuck in the grease necessitating frequent stops to remove the stones. The driver stood on a platform at the rear. May 1947."
Black and white image with the following printed description detailing the list of boat passengers in the picture: Jay Porter, Boulder City, in his Express Cruiser escorts the Nevills Expedition into Pierce Perry, Arizona, at the headwaters of Lake Mead. Left to right in the "Joan" are: Mrs. Otis Marston, Berkeley, Calif., Joe Desloge, Jr., St. Louis, Missouri, at the oars, and Dr. Otis Marston, Berkeley, Calif.; in the "Sandra" are: Anne Desloge, St. Louis, Missouri, Garth Marston, Berkeley, Calif., at the oars and Zoe Desloge, St. Louis, Missouri; in the "Mexican Hat" are: Joe Desloge, St. Louis, Missouri, Kent Frost, boatman, and Marie Salnsfrank, St. Louis, Missouri; in the "Wen" are: Randall Henderson, Editor of Desert Magazine, El Centro, Calif., Norman Nevills at the oars and A. Milotte Wait, Disney Productions, Burbank, Calif.
Black and white image with the following printed description: View showing Senator Wm. F. Knowland, left, Mrs. R.A. Taft and Senator Robert A. Taft during a recent visit to world famous Hoover Dam.
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.
Black and white image with the following printed description: Restored kiva or underground ceremonial chamber at Lost City (Pueblo Escondido), near St. Thomas, Nevada.