Map of the American colonies and adjacent country as known in 1776 / compiled by permission of the American Geographical Society, New York from works in their possession and presented to its patrons by the Baltimore and Ohio Railroad Co. ; drawn, engravedAsher & Adams[1875?]"Entered according to Act of Congress in the year 1875 by Asher & Adams in the Office of the Librarian of Congress at Washington."Includes map explanations, timeline, and description of routes.Relief shown pictorially.cartographic