Shows natural features, and populated places, wagon route, proposed railroad routes and explorers' routes.; Relief shown by hachures.; Longitude west from Washington and from Greenwich.; "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 Southn. Dist. of New York."; "No. 51."; From an atlas by Colton (title unknown).; Decorative border. 29 x 36 centimeters Scale approximately 1:4,550,000 General Map Collection