UPY 577 (GP15-1) has just released a wood car into the ladder in the Union Pacific's North Yard in Denver, Colorado. The crew will lash up to another string of cars and repeat the process.

Union Pacific's Chevron local has shed it regular combination of A GP15 and GP38. For a pure lash-up of GP15-1's 661 and 573.

A bay window caboose is tucked in behind the light power sitting in the Union Pacific's North Yard in Denver, Colorado.

UPY 691 (GP15-1) makes smoke as it moves a cut of cars in the Union Pacific's North Yard.

UPY 557 is one of the many former Missouri Pacific GP15-1's acquired by the Union Pacific and one which has also seemed to allude the repaint and refurbishment shop.

Heading for the barn. The Chevron local has completed it work, and had got the clear to run back to Roper yard.

Lite power off a work train returns to Mead Yard as they pass the interlockings at Alameda and Del Amo.

A day after much of the Salt Lake Valley got hit with a foot of snow. The Chevron local nears Roper yard, after doing it's work at the Salt Lake refineries.

UPY 691 (GP15-1) works the UP North Yard in Denver along side some fresher looking power.

Its a wonder how UPY 691 (GP15-1) has so far alluded the rebuild or paint shop. She was built in 1982 for the Missouri Pacific and if you look closely you can see the MP blue paint wearing throug... (more)

Every weekend, Conrail gathered locomotives along the former Reading tracks serving Pennsylvania’s anthracite regions (now R&N), and sent them to Enola for servicing. The westbound move is seen ... (more)

A duo of ArcelorMittal GP15-1s work the former Mittal plant in East Chicago. Cleveland Cliffs recently took over operations here, but no changes to these two geeps yet.

The Chevron local just finished at the refineries. They are about to reenter the main, for the run back to Roper yard.

ATMX GP15-1's 418 and 417 shove a train of empty NS coke cars over the Indiana Harbor Canal. The cars are headed into ArcelorMittal's plant for loading. These are the only two Mittal GP15-1's assi... (more)

Union Pacific's Chevron local punches it, as they pull out of the Chevron refinery.