Capitol Limited (B&O train) years, Amtrak revived Washington–Chicago service using the same B&O tracks (now CSX Transportation) between Washington and Pittsburgh, Pennsylvania, for the Amtrak "Capitol Limited". Capitol Limited (B&O train) The Capitol Limited was an American passenger train run by the Baltimore and Ohio Railroad, originally between New York City and Grand Central Station in Chicago, Illinois, via Union Station, Washington, D.C., and Pittsburgh. For almost 48 years, it was the B&O's flagship passenger train, noted for personalized service and innovation. At the time of its discontinuation on May 1, 1971, when Amtrak took over most rail passenger service in the U.S., the
Baltimore and Potomac Railroad ran from Baltimore north into Pennsylvania first to York and then into the state capital at Harrisburg on the Susquehanna River. The PRR at the time had access to Baltimore via its own lines (the NCRY from the north and the Philadelphia, Baltimore & Washington Railroad from the northeast), and used the Baltimore & Ohio Railroad (B&O) and its Washington Branch line to continue southwest to the national capital at Washington, D.C.. The PRR and B&O had trouble getting along, but Maryland refused to grant a charter to end the B&O's monopoly on Baltimore-Washington travel. However, the Baltimore and Potomac