Pennsylvanian pulling into Greensburg, 2016.

The daily Pennsylvanian covers a 444-mile route that passes through the Appalachian Mountains and Pennsylvania Dutch Country and crosses over the famed Horseshoe Curve and Rockville Bridge, the oldest stone masonry arch railroad viaduct in the world. The train is financed primarily through funds made available by the Pennsylvania Department of Transportation.

P-42 diesel-electric locomotive No. 145 leads the train, wearing the vintage Amtrak Phase III paint scheme used from 1979 until 1993. This locomotive, along with three others, were repainted in historic paint schemes as part of the Amtrak 40th Anniversary celebration. General Electric built approximately 200 P-42 locomotives for Amtrak, and they entered service between 1996 and 2001. Used in national network and corridor service, they have 4250 horsepower and can reach a top speed of 110 mph. No. 145 pulls tubular Amfleet I cars, which began entering service in 1975.

The Greensburg depot was built by the Pennsylvania Railroad and opened in 1910. Designed in an ornate Jacobean Revival style, the building features a soaring clock tower topped by a copper ogee dome with finial.

Photographer: Chuck Gomez for Amtrak. From the Amtrak Corporate Collection.