Amtrak engine #78 (P42DC) races the snow clouds as it leads the Winter Park Express through the signal bridge in the Union Pacific's North Yard in Denver, Colorado.

The California Zephyr casts a reflection at Barr Lake as it heads towards Denver, Colorado on the Brush Sub.

Fresh snow overnight has frosted the trees in Coal Creek Canyon as the California Zephyr heads into the Rocky Mountains.

Amtrak's Phase VII engine #174 (P42DC) leads the Winter Park Express out of Tunnel #1 and heads towards Plainview, Colorado.

The westbound California Zephyr 5 train runs through a crossing at West Pinecliffe, Colorado.

A bright orange sunrise glints off the stainless steel of the California Zephyr as it runs through Keenesburg, Colorado.

The California Zephyr runs through Keenesburg, Colorado at sunrise.

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

Amtrak’s California Zephyr dashes its way west through a winter wonderland at Crescent while slowly climbing Colorado’s Front Range mountains on March 15, 2024.

The California Zephyr runs through Coal Creek Canyon as it heads into the Moffat Tunnel District and the Colorado Rocky Mountains.

In a dispatching move that didn't quite make sense, the California Zephyr 5 train meets the California Zephyr 6 train, but since a UP oil train occupied the siding at Rocky, Colorado, the 5 train ... (more)

The California Zephyr 6 train runs over the South Platte River as it leaves downtown Denver over 21 hours later than scheduled. The train was held at Frazer, Colorado while winds over 98 mph batt... (more)

Amtrak heritage unit #161 leads the California Zephyr 6 train through Winter Park Ski Resort

Amtrak engine #169 (P42DC) leads the California Zephyr through a sunny but snow packed Crescent, Colorado.

On March 20, 1949, the first run of the original California Zephyr departed Chicago, Illinois, bound for the west coast. A 75th anniversary run of the westbound California Zephyr, Amtrak’s train... (more)