The UP and BNSF operate side by side at the UP's North Yard in Denver.

US Rail and TP&W are paired together as they pull out of Loganasport in heavy snow.

Switching industries in Chetek WI

UPY 577 strains to pull a cut of cars in the UP's North Yard in Denver.

The sand is flying as UPY 647 muscles a heavy cut of cars out of the North Yard for sorting. UP 3885 (SD70M) has just brought a new load of freight cars into the yard.

CSX GP15-1 #1541 rests on the house track at Calhoun, Georgia. It was rare at the time to catch one of these assigned to the A711 local.

UPY 691 (GP15-1) makes smoke as it repositions in the North Yard to pull another cut of freight cars for sorting.

Local with an odd mix of power approaches the BNSF crossing.

Union Pacific GP15-1 No. 569 and dozens of other EMD GP15-1s and other yard switchers sit in storage at UP's Grand Junction yard in November 2017.

Huntington, W.Va., is a great place for a variety of older diesels. Here, a yard transfer rolls through the 16th Street Yard led by EMD GP15-1 No. 1546. Behind the local is a string of stored powe... (more)

Northbound coal loads exit the massive cut at Rogersville, Pa. on the ex-MGA.

GMTX 409 (GP15-1) leads ITM's southbound Polar Bear Express over the other old PRR-NKP diamond in Kokomo, Indiana. Though not in use, the old tilt signal still guards the once busy diamond.

GMTX 409 (GP15-1) sits north of Grand Junction in Kokomo, Indiana while on duty for ITM's Polar Bear Express trains. Grand Junction was a hot spot in Kokomo where the PRR and the NKP crossed. Base... (more)

It is a busy day in the UP's North Yard in Denver. Visible are four ex-Missouri Pacific engines (UP 825, UP 1823, UPY 691 and UPY 625). There is also an ex-Chicago & Northwestern (UPY 546) and a... (more)

UPY 546 works the North Yard in a blizzard.