UP 1826 (SD40N) muscles a cut of cars back into the North Yard in Denver, Colorado.

The paint on BNSF 4718 (Dash9) has really stood the test of time. Great to see the Warbonnet colors still working the rails.

BNSF 729 (Dash9) waits in the BNSF engine servicing facility for orders to head to the Denver Yard and pick up a train.

Rocky Mountaineer's two GP40-3's wait in the UP's North Yard for servicing.

BNSF 5029 (Dash9) is bringing a freight into Denver as an outbound ACe-led freight meets alongside the intermodal facility on the north side of the City.

BNSF Warbonnet 4718 (Dash9) along with paired Canadian Pacific motor ads a splash of color to the orange at the BNSF engine servicing facility in Denver, Colorado.

A recently refurbished BNSF MAC 9738 (designated SD70MACe) waits in the Denver engine yard for a train assignment.

BNSF 1732 (SD40-2) gets ready to move a cut of container cars out of the intermodal facility in Denver, Colorado.

RTD commuter rail train 4033 (Hyundai Eagle) runs on the elevated track over the BNSF engine facility and heads towards Thornton, Colorado.

RTD commuter rail train 4030 (Hyndai Eagle P3) heads out of Union Station as the passenger cars on the UP Big Boy special back into downtown.

BNSF 1908 (SD40-2) is lashed up to a slug as they wait for orders to head to the Denver Yard.

BNSF 2724 (GP 9-2) and mate join a new motor destined for the Denver Rock Island Railroad as they sit at the BNSF engine servicing facility.

BNSF 4194 (Dash9) moves into the servicing yard as the California Zephyr backs into Denver's Union Station from underneath Park Avenue.

BNSF 4465 (Dash9) moves with three other Dash9's to the holding track at the Denver engine servicing facility.

UP 1826 (SD40N) joins other motors waiting for service or assignment in the Denver North Yard.