The California Zephyr climbs towards Tunnel #1 at Plainview, Colorado as it heads west on the Moffat Tunnel Sub towards the Colorado Rocky Mountains.

Amtrak engine #199 (P42DC) leads the California Zephyr west on the Moffat Tunnel Sub at Tolland, Colorado.

The California Zephyr climbs the 2% grade out of Coal Creek Canyon towards Tunnel #1 as it begins the trek through the Moffat Tunnel District and the Colorado Rocky Mountains.

The Amtrak conductor gives a wave as the California Zephyr runs through Tolland, Colorado on its way to the Moffat Tunnel.

Unusual Diversion Amtrak 5 goes around in a meet at Crescent during the tight traffic patterns of the ongoing curfew work in the Fall of 2025.

The sumac is popping red as fall takes ahold of the Moffat Tunnel Sub. Here the California Zephyr runs towards Tunnel #1 at Coal Creek Canyon.

It is a beautiful Colorado fall day as the California Zephyr runs through Coal Creek Canyon on the Moffat Tunnel Sub.

Amtrak engine #199 (P42DC) leads the heritage painted engine #164 through Coal Creek Canyon, Colorado.

A beautiful fall Colorado morning finds the California Zephyr running up to Tunnel #1 through Coal Creek Canyon, Colorado.

The California Zephyr crosses over highway 72 as it heads through Coal Creek Canyon on the Moffat Tunnel Sub.

The California Zephyr rounds the base of Blue Mountain as it heads west on the Moffat Tunnel Sub.

Amtrak engine #199 (P42DC) leaves the Crescent siding and gets on the main as it heads west on the Moffat Tunnel Sub.

A rare scene as the California Zephyr #5 train exits the seldom-used siding at Crescent, Colorado after waiting for an eastbound Union Pacific oil can train to pull through the switch on the main ... (more)

Amtrak Train 4, the Southwest Chief, is making its way through the mountains of Raton, New Mexico, heading east towards Chicago. The train winds through the terrain, offering passengers a scenic r... (more)

Racing alongside Interstate 25, Amtrak Train Number 4, the Southwest Chief, makes its eastward journey toward Chicago.