UP 737 (GP38-2 built in 1980 for the Missouri Pacific) sits on the house track in the Union Pacific's North Yard in Denver, Colorado.

A variety of light and heavy power sit in the Union Pacific's North Yard in Denver, Colorado.

A gaggle of light power sits in the North Yard in Denver, Colorado.

UP 737 (GP38-2) runs light into the North Yard in Denver, Colorado.

UP 737 (GP38-2) heads into the North Yard, passing a bay window caboose which is on the active roster and used as a shoving platform on trips to nearby businesses.

The team of UP 737 (GP 38-2) head to the North Yard for a day of shuffling cars.

If you are a fan of Union Pacific light power then you should plan on spending some time at the UP's North Yard in Denver, Colorado.

Snow and sub-freezing temperatures make for a miserable day of shuffling cars for the crew of UP 737, an ex-Missouri Pacific GP38-2 built in 1980.

UP 737 (GP38-2) joins other light power sitting in the Union Pacific's North Yard until they are called to action.

The last light of the day catches UP 737 (GP38-2) working the North Yard in Denver, Colorado.

"UP Meets BNSF at Sand Creek Junction" A Union Pacific local shoves empties from Suncor Energy back to the yard while a BNSF road train passes by on the adjacent Brush Subdivisio... (more)

With storms rolling in and a bit of rainbow in the background, UP 737 breaks down an intermodal train that just rolled into Union Pacific’s Global 3 intermodal facility in Rochelle, IL.