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: Ancient Indian petroglyphs at Atlatl Rock, Valley of Fire near St. Thomas, Nevada.

Black and white image with the following printed description: Restored kiva or underground ceremonial chamber at Lost City (Pueblo Escondido), near St. Thomas, Nevada.

Black and white image of transmission lines crossing a snow-covered Eldorado Canyon in Boulder City.

Black and white image of General Dwight D. Eisenhower (prior to becoming President) and Hoover Dam's Director of Power, Louis R. Douglass, talking while on the ramp of the dam's powerhouse.

A black and white image with the following printed description: Looking down the loading strip at Hemenway Wash, to Lake Mead where the many recreationists launch their boats for various water sports. One of the two boat docks is seen at the left of the strip.