Amtrak engine #134 (P42DC) leads the California Zephyr towards Denver, Colorado.

The California Zephyr slips between the shadows under the Park Avenue Viaduct as it backs into Denver's downtown Union Station.

The California Zephyr greets the sunrise at Barr Lake, Colorado on the Brush Sub.

Amtrak engine #134 (P42DC) leads the California Zephyr around the bend entering Tunnel #1 at Plainview, Colorado.

Crepuscular Carolinian | The sun has just begun to appear over the horizon on a cool Wednesday, December 20, 2023 morning as the day's northbound Carolinian service crosses the bridge over ... (more)

VANCOUVER WA May 4 2011 — Amtrak P42DC 134 slows for a station stop with the southbound Coast Starlight. General electric built the unit (s/n 52814) in December 2000. My photo.

Snow from the previous day's storm blankets the ground as the California Zephyr runs past a ranch in Coal Creek Canyon, Colorado.

The California Zephyr climbs out of Coal Creek Canyon, Colorado towards Tunnel #1 on the Moffat Tunnel Sub.

The California Zephyr runs through Tunnel #3 on the Moffat Tunnel Sub as it begins the climb into the Colorado Rocky Mountains.

The California Zephyr runs through Little Ten Curve at Rocky Colorado and begins the journey to the Moffat Tunnel.

Amtrak engine #134 (P42DC) leads the California Zephyr around Big Ten Curve as it runs past a line of ballast-filled coal cars that have been welded to an adjacent track as a wind break.

The California Zephyr runs under the Park Avenue Viaduct as it leaves Downtown Denver, Colorado.

The California Zephyr climbs the grade out of Coal Creek Canyon and heads towards Tunnel #1 on the Moffat Tunnel Sub.

Falling snow covers both the California Zephyr as it leaves the North Yard and the Union Pacific Officer Special passenger train that will soon follow the Zephyr up the Moffat Tunnel Sub.

Amtrak’s Empire Builder 7 makes its way westbound at Gold Bar in the morning hours on the scenic sub. Recent wildfires that had swept the area have since been largely put out despite Grotto-S... (more)