MapMaps showing the Atlantic & Pacific Railroad and leased lines. Special map shows the main line and land grant in Missouri and includes iron and lead regions; general map covers United States showing the railroad network with the main lines distinguished by color; created by Act of Congress, July 27, 1866, with a land grant of 42 million acres; entry 329 shows extent of land grant in Arizona and New Mexico.
- Contributor: G.W. & C. Colton & Co. - Atlantic and Pacific Railroad Company - Chicago & Pacific Railroad
- Date: 1873
MapMap showing the projected route of the Potomac and Ohio Railway. Middle Atlantic area showing drainage, cities and towns, county boundaries, coal in West Virginia and the railroads with emphasis on the main line. Incorporated by the West Virginia legislature, 1867-68.
- Contributor: G.W. & C. Colton & Co. - Potomac and Ohio Railway
- Date: 1874
MapMap of the proposed railroad trust companies of Massachusetts and their connections. Map of northeastern United States showing drainage, cities and towns, mineral deposits, and the railroad network with color coding for Massachusetts trust lines.
- Contributor: G.W. & C. Colton & Co.
- Date: 1870
MapMap showing the economic minerals along the route of the Chesapeake & Ohio Rail Way to accompany the geological report of Thomas S. Ridgway. Covers area from Richmond, Va., to the Ohio River along the route of the railroad and shows the geological sections in which minerals are found. Consolidated from the Virginia Central and Covington and Ohio Railroads in August 1868.
- Contributor: Maury, Matthew Fontaine - Ridgway, Thomas S. - Chesapeake and Ohio Railroad Company
- Date: 1872
MapMap of Royal Land Company's railroad (narrow gauge) from their anthracite coal fields to deep water Shows central Virginia from the Allegheny Mountains to the Chesapeake Bay. Relief shown by form lines. Pencil (some col.) on tracing paper, mounted on cloth. LC Civil War maps (2nd ed.) H267 LC Railroad maps, 549 Available also through the Library of Congress Web site as a raster image. Vault
- Contributor: Braxton, Carter M. - Royal Land Company
- Date: 187?
MapMap of the Marietta and Pittsburgh Railroad and its connections. Detailed map of Ohio and vicinity showing drainage, cities and towns, mineral deposits, and the railroad network, with emphasis on the main line.
- Contributor: G.W. & C. Colton & Co. - Marietta and Pittsburgh Railroad
- Date: 1871