UP 1507 (GP40M-2) has completed the transfer run to the BNSF Denver Yard and crosses the South Platte River as it heads back to the Union Pacific's North Yard.

UP 1507 (GP40M-2) sits with other light power in 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

Using trackage rights on the BN from KC-Chicago, a SP intermodal train travels east thru the outskirts of Galesburg IL.

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

UP 1507 (GP40M-2) sits with other light motors in the Union Pacific's North Yard for their turn to shuffle cars.

UP 1507 has had an interesting career, starting life for the Baltimore and Ohio in 1969 as a GP40, then moving to the Southern Pacific after being rebuilt as a GP40M-2. You can now find it workin... (more)

UP 1507 (GP40M-2) takes care of business in the Union Pacific's North Yard.

The Union Pacific North Yard in Denver offers a mix of power. Light power pair up to sort cars and heavies get service so that they can take trains out of the yard once assembled.

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)

Light power works the UP North Yard in Denver, Colorado. UP 1507 started life as a GP40 in 1969 for the Baltimore and Ohio Railroad, then was rebuilt as a GP40M-2 and worked for the Southern Paci... (more)

UP 1507 (GP40M-2) and other light power work the UP's North Yard in Denver, Colorado.

UP 1507 (GP40M-2) is an ex Baltimore and Ohio engine which was built in 1969. Here it leads the local over the South Platte River in downtown Denver, Colorado.

UP 1507 (GP40M-2) climbs the grade past a farmhouse as it heads to Tunnel #1 on the Moffat Line.

A Westbound Denver-Salt Lake City passes the fruit packing sheds at Palisade on the outskirts of Grand Junction.