The Amtrak Winter Park Express Ski Train passes by the Union Pacific's North Yard in Denver, Colorado as a Colorado sunrise provides a colorful sky.
The California Zephyr winds its way through the BNSF's Denver Yard as it heads towards Denver's Union Station.
UP 845 (GP38-2) works the Union Pacific's North Yard in Denver, Colorado.
Denver Rock Island Railroad's GP9 sits with other motors in the yard in Denver, Colorado.
BNSF 6751 (ES44C4) joins other heavies in the yard of the engine servicing facility in Denver, Colorado as a RTD commuter train drops down from the elevated track.
BNSF 9709 (Executive Grinstein SD70MAC) brings the Coors Beer Train into the Denver.
BNSF 2719 (ex-Burlington Northern GP39-2) and BNSF 1732 (ex-ATSF SD40-2) sit at the engine servicing facility in downtown Denver, Colorado.
BNSF 1733 (SD40-2) pulls a cut of cars out of the Denver Yard for sorting.
Locomotives get serviced at the fuel track at Union Pacific’s North Yard in Denver, Colorado, on April 15, 2013. Amid the falling snow, an employee tries in vain to get a fuel reading on one of ... (more)
UP 1980 (GP38N) and other light power sit in the North Yard in Denver, Colorado.
BNSF 1656 (SD40-2) survives in its Burlington Northern Cascade Green paint as it waits for servicing at the BNSF engine facility in Denver, Colorado.
UPY 618 (GP15-1) sits in the North Yard in Denver, Colorado with a variety of other light and heavy power.
UP 1507 (GP40M) heads to the BNSF yard in Denver, Colorado with a cut of freight cards from the Union Pacific's North Yard.
It looks and feels more like winter on April 15, 2013, in front of North Yard tower at Union Pacific’s former Rio Grande facility in Denver, Colorado.
A Union Pacific fuel track employee trundles out into the heavily falling snow to his next assignment at UP’s North Yard locomotive facility on April 15, 2013.
