A helper set leans into an eastbound climbing up the West Slope.

NS 12G descends the Allegheny Mountains at AR. AR Tower is looking worse for wear and might be torn down in the future.

An NS SD40E and two other EMDs works Bison Yard in Buffalo, New York

Locomotives:
NS 6353 SD40E
NS 5666 GP38-2
NS 3390 SD40-2
NS 5667 GP38-2
NS 3394 SD40-2

Two sets of helpers help a loaded coal train around the

An eastbound intermodal gets a push from a pair of SD40E's at the summit of the eastbound grade passing the derelict AR Tower.

Heading up the hill with a coal train.

A helper set shoving on the rear of an eastbound splits the PT 258 signals on its way up the West Slope.

A quartet of EMDs shove on the end of a loaded coal train as fall colors peak on the mountain.

A double set of helpers shove on the rear of an eastbound coal train as it heads up the West Slope of the Alleghenies towards the summit at Gallitzin.

A pair of SD40E helpers bring up the rear on westbound NS 576 at North Irwin, Pa.

NS 11K's pair of SD40E helpers pass under one of the massive Union Railroad bridges in East Pittsburgh. A Union empty hopper train is heading (L to R) towards North Bessemer.

A pair of SD40E helpers on the rear of NS 17G roll under the Westinghouse Bridge in East Pittsburgh.

Looking west on the Jamestown road bridge a helper set runs down hill to help the next eastbound tackle the grade, the old PRR PT257 signals are mounted right on the road bridge for eastbounds.

The helpers on loaded coal drag NS 590 push are to shove this 80 plus car coal train up to the summit.

Two SD40Es lead train I1E west through Emsworth, PA. It's not a common sight to see two standard cab units leading an intermodal train these days.