Amtrak's Pennsylvanian on Horseshoe Curve. Horseshoe Curve is on the main line of the Norfolk Southern Railway between Pittsburgh and Harrisburg, PA.

By David Brossard (Amtrak "Pennsylvanian" on Horseshoe Curve) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons

Classic Streamliners - TRAIN​CYCLOPEDIA

Amtrak's Pennsylvanian on Horseshoe Curve.
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