The California Zephyr runs through Plainview, Colorado as it heads into the Rocky Mountains on the Moffat Tunnel Sub.

Strong winds and snow greet the California Zephyr as it runs through Tolland, Colorado on its way to the Moffat Tunnel.

Sportsman’s Paradise California Zephyr rolls over the fisherman on the Colorado River.

Snowy Morning at Coal Creek Typical snowy morning at Coal Creek, CO.

The California Zephyr runs through Tunnel 29 at Pinecliffe, Colorado as it heads into the Colorado Rocky Mountains on the Moffat Tunnel Sub.

The California Zephyr 5 train runs through Byers Canyon west of Grandby, Colorado.

Amtrak engine #207 (P42DC) leads the California Zephyr through the snow at Blue Mountain, Colorado.

AMTK 51 leads the westbound California Zephyr out of Cisco and into the Utah desert on a sunny fall evening.

The California Zephyr meets strong winds and blowing snow as it heads west through Rollinsville, Colorado on the Moffat Tunnel Sub.

The California Zephyr 5 train runs through Rollinsville, Colorado and will soon be inside the 6.2-mile-long Moffat Tunnel.

Blizzard conditions at Rollinsville, Colorado greet the crew and passengers of the California Zephyr 6 train as it heads to Denver on the Moffat Tunnel Sub.

The Westbound California Zephyr snakes its way along the Colorado River.

Amtrak engine #5 (P42DC) leads the California Zephyr through Tolland, Colorado on the Moffat Tunnel Sub.

Amtrak engine #180 (P42DC) leads the California Zephyr towards Tolland, Colorado on the Moffat Tunnel Sub.

Snow is falling as the California Zephyr runs through Chemical, Colorado as it heads west on the Moffat Tunnel Sub.