Amtrak Heritage Phase IV #184 (P42DC) runs through the snow in Tolland, Colorado as it leads the California Zephyr to the Moffat Tunnel's east portal.

The California Zephyr is frames with Evergreens on top of Blue Mountain, Colorado.

The California Zephyr runs thought the scrub brush east of Keeensburg, Colorado as the sunrise casts a golden hue over the area.

Suncor
In the perfect sun at Suncor Energy

The California Zephyr runs past a frozen puddle as temperatures hover near single digits at Commerce City, Colorado.

The California Zephyr runs through Arvada, Colorado amid snow and strong winds.

After leaving Denver nearly 13 and a half hours late, the California Zephyr #6 passed Barr Lake in Brighton, Colorado in the daytime.

A friendly wave from the conductor greets the photographer as AMTK 137 (P42DC) runs through Arvada, Colorado on its way to the Moffat Tunnel in the Colorado Rocky Mountains.

This morning's #5 California Zephyr was 8 hours late getting to Denver, which offered a rare chance to get this shot in sunlight as the #5 California Zephyr ran around the base of Blue Mountain as... (more)

This morning's #5 California Zephyr was 8 hours late getting to Fort Morgan, which enabled a rare shot of the westbound Zephyr running through the 'Keenesburg Cut' with sun shining from the west. ... (more)

The westbound California Zephyr passes through the short and scenic Byers Canyon.

Our Beagle Minturn (yes, he is named after the town at the foot of Rio Grande’s steep crossing of Tennessee Pass) intently watches Amtrak’s westbound California Zephyr rumbling through Little ... (more)

Dropping downgrade through Wootton, Colorado, Amtrak's eastbound Southwest Chief has had another successful day conquering Raton Pass as the train begins its decent toward Trinidad.

The California Zephyr runs through Roggen, Colorado at sunrise. A jet plane's contrail and shadow gives the illusion that the sun is a comet about to strike earth.

Below the imposing escarpment of Dodge’s Bluff, Amtrak’s westbound California Zephyr traces the Colorado River in spectacular Ruby Canyon just east of Utaline, Colorado, on June 23, 2021.