The California Zephyr runs through Arvada as it heads towards the Colorado Rocky Mountains on the Moffat Tunnel Sub.
The California Zephyr runs through the signals at West Tonville on the Brush Sub.
Amtrak's Winter Park Express Ski Train exits Tunnel 1 on a frosty morning as it runs passengers up the Moffat Tunnel Sub to the ski resort at the top of the Rocky Mountains.
Amtrak's Winter Park Express Ski Train runs through Leyden, Colorado at sunrise.
The Amtrak Winter Park Express ski train leaves Denver behind as it rounds Blue Mountain and heads into Coal Creek Canyon.
The California Zephyr runs through the BNSF's Denver Yard as it heads towards the Union Station terminal in downtown Denver.
BNSF 9375 (SD70ACe) muscles a coal train through Monument, Colorado on the Joint Line.
BNSF 2530 (GP39-3) delivers a load of lumber to a customer in Lafeyette, Colorado.
BNSF 7474 (ES44DC) leads a freight west on the Brush Sub towards Denver. It looks like it spent a day or two in deep snow in Nebraska.
BNSF 7474 (ES44DC) leads a freight over a bridge in Hudson, Colorado as it runs west towards Denver on the Brush Sub.
A crewman from Hudson Terminal Railroad's #646 (Alco S1) throws a switch in the yard where the engine will sort tank cars.
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.
The California Zephyr winds its way through the BNSF's Denver Yard as it heads towards Denver's Union Station.
The California Zephyr runs on the Brush Sub through West Tonville as it heads to Denver, Colorado.
A bird's eye view of Rollins Pass (Corona Pass), which was named after John Rollins, who opened a wagon toll road over the Continental Divide, later largely used by Moffat's Denver, Northwestern &... (more)
