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
MapMaps showing the connections of the Northern and Southern West Virginia Railroad, with the three grand trunk railways which unite the Atlantic seaboard with the Ohio River. Main map shows central West Virginia including drainage, cities and towns, the coal region, and the railroads. General map shows northeastern United States with its railroad network.
- Contributor: G.W. & C. Colton & Co. - Northern and Southern West Virginia Railroad
- Date: 1873