UP 1502 (GP40M) works the North Yard in Denver Colorado.

Long shadows from a bright sunrise surround UP 1502 (GP40M-2) as it moves a cut of cars in the Union Pacific's North Yard in Denver, Coloradol

UP 1502 (GP40M-2) is a 52 year old former Baltimore & Ohio, CSX, and Southern Pacific motor which was built in 1971.

UP 1502 (GP40-2) works the Union Pacific's North Yard in Denver, Colorado.

UP 1502 (GP40-2) joins an eclectic group of engines waiting for servicing or orders in the Union Pacific's North Yard in Denver, Colorado.

A southbound Union Pacific local approaches the Millennium Bridge at 16th Street and will soon cross over Cherry Creek on Colorado’s Joint Line out of Denver on September 2, 2021. A northbound c... (more)

Another veteran working the Union Pacific's North Yard in Denver is UP 1502. She was built as a GP40 in 1971 for the Baltimore and Ohio Railroad and was later rebuilt as a GP40M-2 for the Southe... (more)

The huge March snowstorm dropped nearly three feet of snow along the Colorado Front Range. Two days after the blizzard the light units in the Union Pacific's North Yard have yet to move as all swi... (more)

UP 1502 and team head into the 36th Street Yard with a string of oil cans.

This UP unit quietly watches the lightning dance across the sky during Colorado's crazy rain/hail storms.

On a line dominated by wide-cab AC units, the West Local provides a welcome relief in the form of a pair of GP40s (the 2nd of which is actually an ex-SP GP40P-2). The duo is leading a short train ... (more)

Three Union Pacific locomotives; UP 1502 (GP40-2), UP 3416 (SD40-2) and 1348 (GP40-2), pull a freight through the 180 degree transition that leads to the UP yard at 36th Street in Denver.

With their consist now reversed, the Steel Mill local prepares to depart the Rio Grande yard with loads of scrap steel and ... (more)

During a quiet morning at the UP La Salle, CO yard, a pair of GP40-2's stand quietly waiting for their next assignment. UP 1502 is a former SP unit, and UP 1363 once wore the DRGW logo.