UP 8520 (SD70ACe) leads CSX train I191 (UP train I-COG4) through the Willow Creek area of Portage, IN.

Lost among the ridiculous number of SD40-2s were a group of much more likable units.

Lots of yellow locomotives wait for the call of duty at Union Pacific's Bailey Yard.

It looks like it’ll be a while before Union Pacific EMD GP40 No. 651 is roadworthy again as it sits during a rebuild at the railroad’s Downing B Jenks Shop in North Little Rock, Arkansas, on M... (more)

A pair of UPY GP15-1's lead the Loves Park local back towards Rockford and eventually Belvidere.

UP 6789 (AC4400CW) leads a freight towards Arvada, Colorado on its way to the North Yard in Denver.

Union Pacific's Torrance Local heads south on the railroad's Torrance Industrial Lead behind UP SW1500 1006 (ex-Norfolk Southern 2322; née-Southern Railway 2322) and Cotton Belt 7282 (ex-Missouri... (more)

Union Pacific EMD SD70ACe No. 1996 displays its colorful Daylight colors in its Southern Pacific heritage scheme at the locomotive facility at Bailey Yard in North Platte, Nebraska, on May 4, 2011... (more)

Past Prospects: In a scene that is no longer possible, UP 8571 leads manifest 13Z southbound through Stuarts Draft, Virginia, as the train passes the iconic N&W CPLs that have stood the test of t... (more)

UP 6789 (AC4400CW) waits on a siding at Plainview, Colorado for a BNSF coal train which will be passing shortly.

Union Pacific SD70M no. 5119, leads the northbound Guadalupe Local along the beach at Seacliff, with a consist of three engines and 69 cars.

On a clear fall afternoon, the Swift RoadRailer highballs southbound near Grass Lake, California.

A Union Pacific Officer's Special occupies a track in the North Yard. It would soon get a green to begin the journey up the Moffat Tunnel Sub.

Two brand new repaints lead an intermodal train into Barnes Yard in North Portland.

A trio of SD40's are at the ready in the Union Pacific's North Yard in Denver, Colorado.