BNSF 6339 (ES44AC) brings a freight through the Big 10 Curve at Rocky, Colorado as it descends the Moffat Tunnel Sub towards Denver.
BNSF ACe 8755 runs a freight westbound on the Brush Sub, passing underneath the support structure for the C-470 Highway.
Snow is falling as the Winter Park Express Ski Train runs through Rainbow Cut at Plainview, Colorado.
The California Zephyr runs past a signal at Crescent, Colorado as it heads towards the Moffat Tunnel.
Snow blowing through the trees with a setting sun creates snow rays as the Amtrak Winter Park Express Ski Train exits the east portal of the Moffat Tunnel.
The California Zephyr 5 train runs through the Tolland Valley and will soon enter the Moffat Tunnel.
After leaving Denver, Colorado, the California Zephyr 5 train runs through Crescent and past the Gross Reservoir dam.
The California Zephyr 5 train races the sunrise through Keenesburg, Colorado as it heads to Denver on the Brush Sub.
Out of the darkness of sunset at Rollinsville, Colorado comes the gleaming chariot of the California Zephyr 6 train, riding the magic carpet made of steel towards Denver.
A BNSF freight runs through Tunnel #4 at Plainview, Colorado after the night's snow frosted the foothills on the Moffat Tunnel Sub.
BNSF 8755 (SD70ACe) leads a colorful consist as it passes under the E-470 highway.
The California Zephyr has just run through Coal Creek Canyon and is heading towards Tunnel #1 at Plainview, Colorado.
Thick frost has coated the pine trees at Tunnel #1 as well as Blue Mountain, and the California Zephyr 5 train rounds the corner at Blue Mountain and heads toward the Colorado Rocky Mountains on t... (more)
The California Zephyr runs through the Keenesburg Cut, just as the sun crests the horizon.
UP 1865 (SD40N) sits in the Union Pacific's North Yard in Denver, Colorado waiting for orders or servicing.
