Colton's new railroad & county map of the United States, the Canadas &c.

Scale ca. 1:3,120,000.
LC Civil War Maps (2nd ed.), 25.7
"Entered according to Act of Congress in the year 1861 by J. H. Colton."
"Explanations" (i.e., legend) is pasted over the bottom margin. Map is colored to show "free, or non-slaveholding states" (pink), "border slave states" (yellow), and "seceded or confederate states" (green).
Inset: Colton's map of the United States showing the proposed railroad routes to the Pacific Ocean. 19 x 26 cm.
Advertisement for "Bacon's shilling war maps" is pasted onto the verso.
Description derived from published bibliography.
Available also through the Library of Congress web site as raster image.