The famous Pittsburgh Line now days owned and operated by the Norfolk Southern Railroad. The entire historic Pittsburgh Line runs between Harrisburg and Pittsburgh Pennsylvania. The famous Pennsylvania Railroad started the route in 1846 and completed in 1854. The route was on by the Pennsylvania Railroad until 1968. When Pennsylvania and New York Central merged into the Penn Central who own it until it's bankruptcy 1976. From 1976 to 1999 it became part Conrail. In 1999 the Pittsburgh Line became part the Norfolk Southern Railroad who still owns it today. The Altoona to Johnstown portion I suggested should be short enough to include in TSW. This rural mountainous portion of the route is filled with steep grades, sharp curves, and some famous landmarks. Including the famous Horseshoe Curve and Gallitzin Tunnels. The less famous Bennington Curve site of the infamous Red Arrow Train Wreck in 1947. This route an average 70 trains a day. Most is Norfolk Southern freight service. With 1 only Amtrak passenger train each duration a day.