Scale [ca. 1:320,000]. From his The American Atlas (London, J. Arrowsmith, 1839) LC Railroad maps, 98 Description derived from published bibliography. Detailed map showing relief by hachures, drainage, township and county boundaries, cities and towns, canals, road, and railroads. Available also through the Library of Congress Web site as a raster image. col. map 124 x 91 cm.