BNSF 6948 (ES44C4) leads a freight in dense fog and snow through Rocky, Colorado as it gets ready to climb the Moffat Tunnel Sub into the foothills along the front range.

RTD commuter train 4028 (Hyundai Eagle P3) leads its consist of four cars towards Denver International Airport.

The California Zephyr runs through the valley at Rollinsville, Colorado as it heads towards the Moffat Tunnel.

UP 5364 (C45ACCTE) leads a freight through Speer, Wyoming on its way to Colorado on the Greeley Sub.

If you visit the BNSF yard in downtown Denver, Colorado you will see a nice variety of power, from various light power shuffling cars to heavies lashing up to coal and freight trains for trips on ... (more)

Perhaps the last snow storm of spring frosts the ACe's waiting for service in the BNSF engine facility in Denver, Colorado.

The Denver Rock Island Railroad crews cross over Packinghouse Road when delivering loads to clients, and often have to put up with impatient drivers. They do a great job trying to protect the dri... (more)

Mother Nature serves up another spectacular golden Colorado sunrise as the California Zephyr passes through the trees east of Keenesburg, Colorado.

BNSF 1879 (SD39-2) and GP39-2 mate strain to pull a cut of cars out of the Denver Yard for sorting.

Sharp eyed viewers will see a variety of 'old school' BNSF paint schemes, including a former Burlington Northern Cascade Green unit, an Executive Grinstein MAC, two Warbonnets, and a number of Her... (more)

It's a good day when you can see a Warbonnet, especially BNSF 709 (Dash9), whose paint has maintained its vibrant red color compared to other Warbonnets that have turned almost pink. Long Live th... (more)

UP 5427 (ES44AC) repositions towards the North Yard in Denver, Colorado after disconnecting from a coal train.

Union Pacific 6791 (AC4400CW) leads a loaded coal train around the corner at Crescent on a sunny Colorado day.

After leaving Denver in the morning, the California Zephyr #5 train runs through Crescent, Colorado, giving riders a view of Gross Reservoir and the snow-capped Rocky Mountains.

The California Zephyr #5 train runs through Keenesburg, Colorado at dawn.