An eastbound mixed freight holds back gravity as it heads down the Allegheny summit into Altoona.

SD45-2 helper set 6654/6661 leads a westbound intemodal with B36-7's 5003/5021/5037 as base power over Big Viaduct, west of South Fork, PA.

A Seaboard System U36B sits with an ex-C&O SD35 at the Cumberland MD locomotive shops.

Conrail U23B 2796, GP10 7579, and SD40 6281 team up to pull a train east out of Altoona.

CR GP10 7545 and U23C 6908 works the lower end of the hump at Enola yard as SD40-2 6478 leads a train to its terminus.

southbound intermodal crosses over the Emory River between tunnels 23 and 24.

Southbound loaded grain train passes thru downtown Rockwood, with UP motive power in the consist.

Southbound, heading towards Dayton and Chattanooga.

An eastbound runs over the top of Tunnel 9 as it leads a string of empty intermodal racks around Tehachapi Loop.

An eastbound approaches tunnel 9 prior to taking a trip around the famous loop.

A westbound intermodal stops in downtown Tehachapi due to setting off a dragging equipment detector.

A westbound intermodal passes thru Monolith before arriving at Tehachapi.

Two UP units are called out of Mojave yard to rescue two BNSF DPU helpers off of the rear of a northbound. Four GE's - four paint schemes.

Several pieces of snow fighting equipment for use on Donner Pass.

We waited for three hours on this hillside overlooking Shed 10 on Donner Pass before any trains arrived.