Blizzard conditions greet the passengers and crew of the California Zephyr as it runs towards the east portal of the Moffat Tunnel.

The California Zephyr notches up as it heads through Tolland, Colorado on the Moffat Tunnel Sub.

Amtrak engine #168 (P42DC) leads the California Zephyr through Tolland, Colorado on its way to the Moffat Tunnel.

Amtrak engine #168 (P42DC) leads the California Zephyr through Tolland, Colorado and will soon enter the Moffat Tunnel.

A trio of veterans led by a UP GE guide BNSF's Provo-Denver manifest downgrade through the Tolland Valley with the Continental Divide standing tall in the background. The train is crossing over So... (more)

A pair of Southern Pacific GE AC4400CWs lead an eastbound Union Pacific coal train downgrade and across a wood trestle over Boulder Creek out of Tolland, Colorado. You wouldn’t know it from the ... (more)

The California Zephyr rounds the corner leading up to the Moffat Tunnel.

The California Zephyr runs through the valley at Tolland, Colorado on the way to the Moffat Tunnel.

The California Zephyr leaves the storm clouds and Tolland, Colorado behind as it heads to the Moffat Tunnel.

The California Zephyr passes over the main road leading to the Moffat Tunnel as blue skies give the passengers a great view of the snowy Colorado Rocky Mountains.

Amtrak engine 30 (P42DC) leads the California Zephyr through Tolland, Colorado and will soon enter the Moffat Tunnel.

The California Zephyr is in full snow whippage mode as it runs at track speed through Tolland, Colorado on its way to the Moffat Tunnel.

Autumn Evening at the Great Divide Along the banks of the South Boulder the eastbound Rocky Mountaineer is rolling the tangent out of the Gun Barrel from Boulder Park. The James Peak W... (more)

A pair of BNSF Heritage I Dash-9's leads a freight through Tolland, Colorado at the height of the gilding of the aspens.

A pair of ES44AC locomotives are the DP motors of the Provo to Denver trackage right manifest train as they help hold the train down the mountain grade between Tolland and Rollins.