'Entered according to Act of Congress in the year 1855 by J.H. Colton & Co. in the Clerk's Office of the Dist. Court of the U.S. for the South'n. Dist. of New York.' Scale [ca. 1:4,752,000. 1 in. to approx. 75 miles] (W 120°--W 102°/N 43°--N 32°). Shows natural features, and populated places, wagon route, proposed railroad routes and explorers' routes. Relief shown by hachures. Prime meridians: Greenwich and Washington.Hand colored. Atlas p. number in lower-right margin: 51. Decorative border. J.H. Colton & Co.

40 x 60 cm. Relief shown by hachures and spot heights. Prime meridians: Greenwich and Washington. Atlas plate numbers 54 and 55 in the upper corners. Shows forts, trails, exploration routes, drainage, mail steamship routes, physical features, Indian tribes, and historic sites. The geographic region of Southwest is referred to as the New Southwest. Original publisher: Johnson .