Until the late 1960s, the PRR also operated long-distance trains over its historic Northern Central Railway line from Penn Station to Harrisburg and beyond, such as ""The General"" to Chicago, the ""Spirit of St. Louis"" to its Missouri namesake, and the ""Buffalo Day Express"" and overnight ""Northern Express"" between Washington, DC, and Buffalo, New York. As late as 1956, this route also hosted the ""Liberty Limited"" to Chicago and the ""Dominion Limited"" to Toronto, Canada. The Baltimore Light RailLink now operates over much of the Northern Central Railway's right of way in Baltimore and Baltimore County; however, the spur connecting Penn Station to this right of way is not the route originally taken by Northern Central trains. Baltimore Light RailLink service began in 1997.