A few years ago it was not uncommon to see 3 or 4 MP15 engines working the UP's North and 36th Street Yards. Now they are gone, with GP15-1's (ex-Missouri Pacific engines) doing most of the sortin... (more)

There is a nice mixed bag of engines in the UP North Yard.

MPs and Geeps wait their turn to shuffle freight cars in the North Yard.

It has been well over a year since the UP moved out their fleet of their well maintained MP15AC's and MP15DC's from the North Yard. Personally I'd rather see these than the many Geeps that now wo... (more)

Sometimes the photos that seem the most mundane end up being very interesting if you look at the details. While the UP North Yard is not quite as active as it usually is in this shot, you can spo... (more)

You can usually find two or three ex-Southern Pacific MP15 engines in the UP's North Yard at any one time.

Stop by the UP's North Yard in Denver on a sunny day and you'll be treated to a variety of power and colorful collection of freight cars.

The remote control engineer of UPY 1443 (MP15AC) catches the first rays of a fall morning sunrise.

The UP North Yard is home to a great selection of vintage switchers, including UPY 1295 (ex Southern Pacific MP15DC built in 1974), UPY 1323 (ex Chicago & Northwestern MP15DC built in 1975), 1324 ... (more)

You can often find the various MP15 units (AC and DC) in the North Yard paired with the many variety of Geeps which share the humping duties, including GP15-1's, GP38-2's and former D&RGW GP40-2's... (more)

A UP crewman rides a gondola past a trio of MP15's to the humping point in the North Yard.