The California Zephyr 5 train runs through Rollinsville, Colorado as it heads west towards the Moffat Tunnel.

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

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

A golden sunset casts a glow over the California Zephyr as it heads towards Union Station in downtown Denver, Colorado

The California Zephyr runs through the signal tower in Denver as the sun sets for the evening.

The California Zephyr gets ready to enter the east portal of the Moffat Tunnel at Tolland, Colorado.

The California Zephyr runs past the signals at Leyden, Colorado as it heads to Denver's Union Station.

The 'bloody nose' Phase I heritage locomotive begins its push up the grade of Raton Pass after making its final stop in Colorado in the town of Trinidad. Though hard to imagine, within the next 24... (more)

The westbound California Zephyr rips through Troublesome, where trains have picked up time between canyons for decades.

Amtrak 5 rolls slowly through Byers Canyon just west of Hot Sulfur Springs, with Amtrak 203 in tow. Once it exits the canyon, it will hit the gas all the way to Kremmling before slowing down to en... (more)

Amtrak #5 slides through DeBeque Canyon

Amtrak engine #192 (P42DC) leads the California Zephyr through westbound on the Moffat Tunnel Sub as will soon enter Tunnel #1 at Plainview, Colorado.

Amtrak's eastbound California Zephyr races across Barr Lake during sunset after performing its station work and a crew change at Denver Union Station. AMTK 160, the Phase III "Pepsi Can"... (more)

Light snow falls over Denver as the California Zephyr backs into Denver Union Station.

A pair of specially painted Amtrak engines, including a Heritage VII painted P42DC and Amtrak #160, painted in the "Pepsi" paint scheme, lead the California Zephyr through South Draw bet... (more)