The California Zephyr runs through Tolland, Colorado on a sunny day.

Some Colorado River rafters enjoy a shoreline lunch as Amtrak’s westbound California Zephyr curves overhead while negotiating Little Gore Canyon east of Radium, Colorado, on June 20, 2023.

South Draw A westbound BNSF manifest climbs the grade at Tunnel 16 on the steep 2%+ climb at South Draw. The train is crossing a small creek that flows under ROW at the bottom of the larg... (more)

A westbound Union Pacific coal empty approaches Azure, Colorado, as it exits Gore Canyon and snakes through Tunnel 38 on June 19, 2023. Powering the train is dirty GE AC4400CW-CTE No. 5682 and new... (more)

The California Zephyr runs between tunnels 3 and 4 as it begins the climb up the Moffat Tunnel Sub to the Continental Divide.

BNSF 8415 (SD70ACe) leads a freight through Pinecliffe, Colorado as it heads down the mountain on the Moffat Tunnel Sub.

The Tolland valley is green from the many thunderstorms that have hit the valley. The California Zephyr runs through the valley towards the Moffat Tunnel just as another storm is forming in the d... (more)

The California Zephyr exits Tunnel 4 as it runs west on the Moffat Tunnel Sub at Plainview, Colorado.

The California Zephyr runs over the fill at Tunnel 2 at Plainview, Colorado.

The California Zephyr runs through Plainview, Colorado as it begins the climb into the Moffat Tunnel District.

Amtrak’s California Zephyr has just passed through 463-foot Tunnel 42 as it follows the Colorado River just east of Radium, Colorado, on the afternoon of June 19, 2023.

The California Zephyr has exited Tunnel #1 and begins the climb up the Moffat Tunnel Sub that will take them through 29 tunnels to get to the west side of the Continental Divide.

A rare morning thunderstorm, currently over the City of Boulder, creates some amazing contrast in the sky as partly cloudy skies dominate to the east over the plains. Under the unusual skies, we f... (more)

A BNSF freight enters the Big Ten Curve at Rocky, Colorado as it climbs the grade going west on the Moffat Tunnel Sub.

The California Zephyr runs through Rollinsville, Colorado as a massive thunderhead blooms in the background along the Front Range.