The first snowfall of the winter season blankets the yard of the engine servicing facility in Denver, Colorado.

BNSF 1600 (SD40-2) shoves a string into the Denver Yard as a manifest train is ready to leave the shadows and head south on the Joint Line.

UP heavies outnumber the light power in the Union Pacific's North Yard in Denver, Colorado.

The remote-control engineer pulls UP 1825 (SD40N) up to the switch in the North Yard in Denver, Colorado.

A pair of visitors from the north join some other UP heavies as they get ready for servicing in the North Yard in Denver, Colorado.

The California Zephyr has left the blowing snow in the Colorado Rocky Mountains and heads towards Denver as the sunset transitions to the blue hour.

Heavy snow and strong winds greet the California Zephyr as it exits the east portal of the Moffat Tunnel.

An oil can train passes by UP 4367 (SD70M) which will soon drop off the cars in the LaSalle, Colorado yard.

A new crew for UP 7877 (ES44AC) show up and will take the train west on the Moffat Tunnel Sub into the Colorado Rocky Mountains.

A cold brisk morning in Silverton, CO on October 25, 2025 greets the Durango and Silverton train crew as #480 couples up to her mixed train for a day of narrow gauge railroading. This was taken on... (more)

D&RGW K-36 #480 hustles by a pond near the Colorado Trail (Milepost 491.25) on October 25, 2025 with her mixed train bound for Durango, CO. #480 and her sister K-36 locomotives turn 100 years old ... (more)

Engineer Bobby Barnes feathers the automatic train brake on D&RGW K-36 #480 on the morning of October 24, 2025. #480, built in 1925, is equipped with a Westinghouse 6-ET brake system.

UP 4367 (SD70M) pulls a freight through the yard in LaSalle, Colorado, and approaches a pair of cantilevered signals that span the tracks.

UP 1826 (SD40N) takes a turn at sorting cars in the Union Pacific's North Yard in Denver, Colorado.

Eighty-year-old HTR 646 (Alco S1) moves into the yard in Hudson, Colorado and will spend the next few hours sorting tank cars.