This colorful 16-page brochure features ten distinctive pictographic maps by Ruth Taylor. The maps detail the air trails across the United States as flown by United Airlines in the late 1930's. Each map is densely filled with Taylor's playful images describing industry and activities in the area. The dimensions given are for each two-page spread as this is the layout employed in the brochure. The dramatic cover is in bold red and black with art deco titling. The newly created Boulder Dam (September 1935) is shown suggesting a publication date in the late 1930's. Passengers were given this brochure as a souvenir of their flight in the innovative DC-3 aircraft.