A northbound tank train crosses Catskill Creek in Catskill, N.Y., just before sunset.

A CSX train returns from the ADM plant in Hudson, N.Y., running down 7th Street for a block past the Iron Horse Bar.

A northbound CSX train soars over Catskill Creek in Catskill, N.Y. An abandoned narrow gauge railroad bridge is in the foreground.

A westbound Amtrak train passes under the color position light (CPL) signals at SEPTA's Levittown/Tullytown station on the northeast corridor. Next stop is Philadelphia.

An eastbound Amtrak train speeds past the dog park in Morrisville, Pa. In just seconds it will cross the Delaware River into New Jersey and make its station stop at Trenton shortly thereafter.

An Amtrak Keystone train pushes east while a westbound regional train approaches at SEPTA's Levittown/Tullytown station. The station on the left was one of the Pennsylvania Railroad commuter stati... (more)

An eastbound Amtrak train approaches its stop at Trenton, N.J. Amtrak still uses modified Pennsylvania Railroad position signals on the corridor; while the Pennsy used all amber lights for signals... (more)

A westbound (southbound) NJT train arrives at the end of its run down the Northeast Corridor at Trenton. Fair Tower still stands guard over the interlocking approaching the station, but is no long... (more)

Dairy Queen isn't open yet, as it's still winter as Norfolk Southern heads past on its way to switch the Staley plant in Morrisville, Pa.

On its way to switch the Staley plant, the Norfolk Southern local passes under Amtrak's ex-Pennsylvania Railroad bridge over the Delaware River and proceeds down Delmore Street.

The parking deck at Elizabeth, N.J., provides one of the best views of trains on Amtrak's Northeast Corridor.

Amtrak 600, the David L. Gunn, leads a westbound train through Elizabeth, N.J., in the classic view from the parking deck.

A westbound Boonton Line train pulls to a stop in the line's namesake town. The late winter light allows the mural under the bridge to be illuminated.

A southbound RiverLINE train departs the Roebling, N.J., station. The giant wheel in the background is part of the Roebling Museum, which sits on the site of the Roebling Steel Mill.

One of the last survivors of the AEM7 fleet heads west through the Hamilton station. At the time of this photo, there were only three AEM7s left on Amtrak's in-service roster.