In addition to those that were rebuilt, new railroads developed after the Civil War. In 1868, under railroad baron Collis P. Huntington, the Virginia Central Railroad was merged and transformed into the Chesapeake and Ohio Railroad. In 1870, several railroads were merged to form the Atlantic, Mississippi and Ohio Railroad, later renamed Norfolk & Western. In 1880, the towpath of the now-defunct James River & Kanawha canal was transformed into the Richmond and Allegheny Railroad, which within a decade would merge into the Chesapeake & Ohio. Others would include the Southern Railroad, the Seaboard Air Line, and the Atlantic Coast Line; still others would eventually reach into Virginia, including the Baltimore & Ohio and the Pennsylvania Railroad. The rebuilt Richmond, Fredericksburg, and Potomac Railroad eventually was linked to Washington, D.C..