The sun is fading away as UPY 681 stands guard at the UP North Little Rock Yard. BNSF 8770 rolls eastbound past the mainline fuel racks which are used to refuel high priority intermodal without an... (more)

UPY 681 (GP15-1) works the 36th Street Yard in Denver while UP 695 works the adjacent intermodal facility

UPY 681 was built for the Missouri Pacific in 1982. You can find a number of the former MoPac GP15-1's in the various yards around the Denver area.

The crew of UPY 681 (GP15-1) brings a small freight to the North Yard.

The UP uses mostly Geeps to shuffle freight in the North Yard, and most of those are former Missouri Pacific MP15-1's.

The remote operator for UPY 681 (GP15-1) works the 36th Street Yard in Denver as a team in the distance works the adjacent UP intermodal facility.

UPY 681 (GP15-1) gets ready to pull a cut of cars into the North Yard for sorting, while a BNSF freight heads to the Denver Yard.

Riddle me this.......What former Missouri Pacific GP15-1, built in 1982, thinks it’s an inquisitive Baldwin locomotive?

UPY 681 showing the rest of the UP power who's boss.

UPY 681 (GP15-1) works the North Yard while the BNSF team works the adjacent intermodal facility.

The crew of UPY 681 (GP15-1) confab in the North Yard on a sunny and unseasonably warm February day.

UPY 681 is working the 36th Street Yard sorting a variety of rolling stock.

When you think promo pictures, I'm not sure you think of two 35-year-old low HP branch-line/switcher units, but this pair of GP15-1s in UP yellow represent the face of second-generation diesldom a... (more)

The Force of a Baldwin locomotive is strong in this one.

The down side of shuffling freight cars via remote control engines is that the operator typically has to stand outside, and in the winter time in Colorado that means subfreezing temperatures.