The last minutes of sun at sunset cast long shadows in the Union Pacific's North Yard as UP 7026 (AC4460CW) drops off a train and heads to the fueling rack for servicing.
UP 1357 (ex Denver & Rio Grande Western GP40-2) sits next to the operations building in the Union Pacific's North Yard in Denver, Colorado.
UP's Western Pacific heritage engine #1983 (SD70ACe) stops at the North Yard in Denver for servicing.
UP 1957 (SD40N) and UP 1640 work sorting a cut of cars in the Union Pacific's North Yard in Denver, Colorado.
BNSF 1448 (SD60M) runs under the Denver RTD commuter rail track as it heads to Denver, Colorado with a string of oil cans from the refineries in Commerce City.
UP 1357 (GP40-2) brings its crew in from the North Yard in Denver, Colorado.
The RTD commuter train to Arvada runs past the North Yard in Denver at sunrise.
The Winter Park Express Ski Train leaves Denver at sunrise and will run into the Colorado Rocky Mountains on a two-hour trip to the ski resort on the west side of the Moffat Tunnel.
The California Zephyr 6 train arrives in Denver at sunset and will stop at Denver's Union Station prior to heading to Nebraska.
The sun is just coming up as the Winter Park Express Ski Train runs under the Pecos bridge and the signal bridge in the North Yard in Denver, Colorado.
BNSF 9114 (SD70ACe) joins a variety of other motors in the yard at the engine servicing facility in Denver, Colorado.
BNSF 9076 (SD70ACe) shoves an empty coal train through the Denver Yard.
The sunrise glints off the Amtrak's Winter Park Express Ski Train as it runs past the old water tower in the North Yard at Denver, Colorado.
The Denver Rock Island Railroad's SW1500 heads back to the engine facility in Denver, Colorado.
BNSF 9162 (SD70ACe) holds on the Joint Line in Denver, Colorado for a green to head south.