BNSF 8751 (SD70ACe) runs down the 2% grade through Coal Creek Canyon as it heads to Denver on the Moffat Tunnel Sub.
BNSF 5928 (ES44AC) runs over a Rio Grande bridge at Leyden, Colorado.
Amtrak's Winter Park Express Ski Train exits Tunnel #1 at Plainview, Colorado and heads west on the Moffat Tunnel Sub to the famed ski slopes just west of the Continental Divide.
The California Zephyr runs through heavy snow as it exits the east portal of the Moffat Tunnel at Tolland, Colorado.
The California Zephyr runs west on the Moffat Tunnel Sub as it begins the journey through 28 tunnels between Plainview, Colorado and the Winter Park ski resort.
Amtrak engine #199 leads the Amtrak Winter Park Express Ski Train through the North Yard in Denver, Colorado as sunrise starts to break through the storm clouds.
The California Zephyr climbs the 2% grade out of Coal Creek Canyon towards Tunnel #1 as it begins the trek through the Moffat Tunnel District and the Colorado Rocky Mountains.
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.
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.
UP 7798 (ES44AC) leads a freight through the North Yard in Denver, Colorado, passing the old Colorado & Southern water tower.
Sunrise shines on the bricks of the operations building at the Union Pacific's North Yard in Denver, Colorado.
Sunset begins to fall on the Moffat Tunnel Sub as the California Zephyr runs through Rocky, Colorado on its way to Denver.
The wide-open expanses of the South Draw region of the Moffat Tunnel Sub frames the Rocky Mountaineer passenger train as it heads east towards Denver, Colorado.
BNSF 7073 (ES44AC) muscles an oil can train through a snowy Tolland, Colorado as it heads east on the Moffat Tunnel Sub.