UP 801 (GP38-2) works the ladders in the North Yard in Denver, Colorado.
UP 1507 (GP40M) moves through the Union Pacific's North Yard in Denver, Colorado.
Its Throwback Thursday at the BNSF Engine Servicing Center in Denver, Colorado as two Executive Grinstein MACs and a Cascade Green Burlington Northern unit wait for servicing.
BNSF 9015 (SD70ACe) brings a freight into the Denver Yard and will back the cars into a ladder in the massive facility.
BNSF 1720 (SD40-2) pulls a cut of cars out of the Denver Yard for sorting.
It's great to see an old school Burlington Northern SD40-2 still in Cascade Green paint. This one was at the BNSF engine servicing facility in Denver, Colorado.
The California Zephyr passes some BNSF motors as it winds through the Denver Yard. It will soon back into Denver Union Station to pick up a new crew and passengers for the run toward the Moffat T... (more)
UP 1817 (SD40N) sits in the Union Pacific's North Yard in Denver, Colorado.
UP 1826 (SD40N) pulls up to the yard crew who will board as head to the north end of the yard.
I think Alfred Hitchcock would have liked this photo. UP 1826 (SD40N) works the Union Pacific's North Yard in Denver, Colorado as hundreds of birds circle, waiting for the chance to land on the tr... (more)
RTD 4037 (Hyundai Eagle P3) commuter rail train arrives from Denver International Airport as it drops down from the elevated track north of Denver's Union Station.
It's the blue hour in Denver, Colorado as UP 6999 (AC4400CW) leads an oil can train towards the 36th Street Yard.
A visiting BNSF motors sits among the Union Pacific motors in the UP's 36th Street Yard in Denver, Colorado.
The California Zephyr runs through the BNSF's Denver Yard as it heads towards the Union Station terminal in downtown Denver.
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.
