The California Zephyr runs past the BNSF intermodal facility in Denver, Colorado.

Amtrak engine #15 (P42DC) leads the California Zephyr through Keenesburg, Colorado as a pastel sunrise greets the crew and passengers.

The California Zephyr runs through Keenesburg as the sunrise casts an orange glow on the stainless-steel cars and silver engines.

The clouds have parted just as the California Zephyr runs through Tunnel 13 in South Draw, Colorado.

Amtrak engine #15 (P42DC) leads the California Zephyr through the trees in South Draw, Colorado on the Moffat Tunnel Sub.

The Southwest Chief leans into the high-speed curve west of Model, Colorado.

The Southwest Chief crew gives a wave as they take the high-speed elevated curve at Model, Colorado on their way to Trinidad.

The Southwest Chief runs through Model, Colorado as it heads towards the stop at Trinidad.

The sunrise greets the crew and passengers of the California Zephyr as they run through Roggen, Colorado.

The California Zephyr rides the rails towards Roggen, Colorado as the sunrise bathes the horizon is a golden glow.

The California Zephyr races the sunrise as it heads through open country east of Roggen, Colorado.

A bright sunrise catches the California Zephyr running towards Roggen, Colorado.

The wide-open prairie east of Roggen, Colorado affords the opportunity to get some stunning long distance shots, with the glint of the sunrise bouncing off the rails and the stainless steel of the... (more)

There is something magical when you see that headlight off on the horizon, knowing that the California Zephyr will be passing in short order. On this day the temperature was 22 degrees with 30 MP... (more)

Amtrak's California Zephyr speeds westbound into the setting sun as it travels over BNSF trackage, crossing over the Des Moines River on the west side of Ottumwa, Iowa.