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

    "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). Description derived from published bibliography. Insets: Colton's map of the United States showing the proposed railroad routes to the Pacific Ocean -- ...

    • Contributor: Colton, J. H.
    • Original Format: Maps
    • Date: 1862