UPY 1425 (MP15AC) waits for its turn to work the North Yard. 1425 was built in 1976 for the Milwaukee Road and then later worked for the SOO Line before finding employment with the Union Pacific.

A variety of UP units sit in the North Yard, including a MOW track ballast spreader, switcher UPY 1425 (MP15AC built in 1976), yard worker UPY 691 (GP15-1 built in 1982) to the new UP 8895 (SD70A... (more)

The UP still uses a variety of MP15AC and DC power in their two Denver Yards.