The California Zephyr tries to outrun thunderstorms as it heads east on the Moffat Tunnel Sub through Crescent, Colorado.

The California Zephyr #6 runs through an S curve cut in Crescent, Colorado as it heads into South Draw on the way to Denver.

The yellow nose of the California Zephyr engine #203 (P42DC in the Operation Lifesaver paint scheme) runs through a winter wonderland of snow flocked pine trees in Crescent, Colorado.

The California Zephyr has the Operation Lifesaver engine leading as it runs through flocked trees at Crescent, Colorado on the Moffat Tunnel Sub.

Sunrise in the Snow At the prettiest spot east of the Great Divide

BNSF 6123 (ES44AC) leads the Provo train through the curve at Crescent, Colorado as it heads to Denver on the Moffat Tunnel Sub.

BNSF 6123 (ES44AC) leads the Provo to Denver train through the curve at Crescent, Colorado on the Moffat Tunnel Sub.

An orange sunset falls over the California Zephyr #6 train as it runs through Crescent on the Moffat Tunnel sub towards Denver, Colorado.

An orange sunset covers the California Zephyr as it runs through Crescent, Colorado on the Moffat Tunnel Sub.

Amtrak P42DC 136 and 61 leading the westbound California Zephyr Train AMTK 5 on the Moffat line.

The BNSF locomotive 6393 is leading a mixed freight train up the Moffat line heading west. In the background you can see the dam of the Gross Reservoir, which is currently being enlarged.

Tunnel 38 Union Pacific OSJXP-04 with the Spirit 1943 Union Pacific Railroad leads, winding through the incredible Gore Canyon into the vibrant evening sun at tunnel 38. This westboun... (more)

Tunnel 15 From the clearing in old tunnel 17 we see a Union Pacific train move on the fill from tunnel 14 across the valley in Eldorado Canyon in one of the horse shoes of the Moffat ... (more)

Tunnel 17 BNSF daily is entering South Draw from Crescent, CO and tunnel 17 deep in the tunnel district.

BNSF 5700 (ES44AC) leads a freight around the corner at Crescent, Colorado.