As a passenger watches out the rear window, the California Zephyr 5 train gets ready to enter the east portal of the Moffat Tunnel.

As light snow falls over Denver, Colorado, the California Zephyr 5 train gets ready to back into Union Station, which sits amongst the high-rise buildings.

It seems the California Zephyr is destined to be led by a pair of Phase VII P42's. This colorful consist is a welcomed addition for photographs along the Moffat Route.

The California Zephyr 5 train has left Denver and is running towards Rocky, Colorado on the Moffat Tunnel Sub.

Amtrak 53 takes the siding with 91 expected to overtake which did not happen, 53 continued south ahead of 91.

With most Amtrak trains doing the posted 70mph (60mph for freight) on the Mohawk, Amtrak P-281 with the "Connecting America for 50 Years" midnight blue 100 unit passes Lock 14 at restric... (more)

Amtrak P42 99 shoves a trainset into the yard in Chicago.

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

Here we get a good look of the new Phase VII paint scheme that has started to grace the P42DC's as the California Zephyr 6 train runs past the BNSF's intermodal facility in Denver, Colorado.

The California Zephyr 6 train rousts the pigeons as it runs past the Union Pacific's North Yard in Denver, Colorado.

Passing through the town of Centralia, Illinois. Amtrak train number 391 slows to a stop to perform station work at the small mid-western station on a breezy Spring day.

Stormy weather is moving over Coal Creek Canyon as the California Zephyr heads into the Colorado Rocky Mountains on the Moffat Tunnel Sub.

Storm clouds are moving down the mountain as the California Zephyr rounds the horseshoe curve in Coal Creek Canyon, Colorado.

Snow clouds greet the California Zephyr 6 train as it escorts two Charger units through Tolland, Colorado on the Moffat Tunnel Sub.

Zooming West with the popular blue leader.