The Winter Park Express Ski Train runs through Leyden, Colorado at sunrise on the Moffat Tunnel Sub.

Amtrak's Winter Park Express Ski Train runs through the snow towards the platform at the ski resort to pick up passengers for the ride back to Denver, Colorado.

The Winter Park Express Ski Train runs through Leyden, Colorado at sunrise.

Dawn's early light catches the Amtrak Winter Park Express Ski Train passing Blue Mountain Road and heading through Coal Creek Canyon on the Moffat Tunnel Sub.

The temperature is -4 degrees, and the snow is falling as the Winter Park Express heads back to the ski resort's platform to pick up passengers for the ride back to Denver.

The Winter Park Express Ski Train leaves Denver at sunrise and will run into the Colorado Rocky Mountains on a two-hour trip to the ski resort on the west side of the Moffat Tunnel.

The sunrise glints off the Amtrak's Winter Park Express Ski Train as it runs past the old water tower in the North Yard at Denver, Colorado.

The Amtrak Winter Park Express Ski Train runs through Coal Creek Canyon on the Moffat Tunnel Sub

The Amtrak Winter Park Express Ski Train rounds the base of Blue Mountain as it heads into the Colorado Rockies on the Moffat Tunnel Sub.

The Amtrak Winter Park Express Ski Train leaves downtown Denver at sunrise and heads towards the Rocky Mountains on the Moffat Tunnel Sub.

A track maintenance vehicle runs past the Amtrak Winter Park Express Ski Train as it works on cleaning switches from the deep snow.

A bright Colorado sunrise catches the Winter Park Express Ski Train running towards Tunnel #1 at Plainview, Colorado.

A sunny day in Fraser, Colorado finds the motors from the Winter Park Express Ski Train swapping ends with the passenger cars for the trip back to Denver, Colorado.

A brilliant Colorado sunrise gives the Midas touch to the Winter Park Express and the grasses at Leyden, Colroado as the ski train heads into the Rocky Mountains on the Moffat Tunnel Sub.

The Winter Park Express Ski Train is ready to run back to the ski resort from Fraser, Colorado. The orange cover at the front is used to keep ice and snow from freezing up the coupler.