A loaded BNSF coal train runs south on the Joint Line through Greenland, Colorado in the last minutes of sun for the day.

BNSF 6382 (ES44AC) leads a loaded coal train through Castle Rock on the Joint Line.

A line of BNSF heavy motors runs through the servicing island at the engine facility in Denver, Colorado.

BNSF 7828 (ES44DC) leads a freight towards Larkspur, Colorado on the Joint Line.

BNSF 1899 (SD40-2) brings a freight to Denver on the Greeley Sub.

UP 7689 (ES44AC) runs through Greenland, Colorado at sunset.

UP 1826 SD40N moves past a trio of BNSF motors sitting in the Union Pacific North Yard.

UPY 453 (which is a former Missouri Pacific SD40-2 converted to a slug by removing the prime motor) is spotted in the North Yard in Denver, Colorado.

BNSF 1590 (SD40-2) runs long hood forward and drags some stack cars to the yard in Denver, Colorado.

Snow has provided a white backdrop for BNSF 2530 (GP39-3) as it waits for a crew in Longmont, Colorado.

BNSF 6152 (ES44AC) hits the signals at Nixon, Colorado as it heads north on the Joint Line.

UP 4363 (SD70M) leads a freight towards Fort Lupton, Colorado on the Greeley Sub.

UP 5640 (ES44AC) joins a mix of light and heavy power in the Union Pacific's North Yard in Denver, Colorado.

UP 8640 (SD70ACe) gets repositioned in the Union Pacific's North Yard in Denver, Colorado.

BNSF 6258 (ES44AC) runs an empty coal towards Keenesburg, Colorado and into a golden sunrise.