Heavy snow is falling as Amtrak's Winter Park Express leaves Denver and begins its run through the Colorado Rockies to the Winter Park Ski Resort.

The Westbound California Zephyr leaves the Glenwood Springs Depot and heads west towards Emeryville, California.

The California Zephyr sports heritage engine 184 on point as it pulls into Glenwood Springs, Colorado

The California Zephyr 6 train pulls into Glenwood Springs and will soon stop at the depot located in the downtown area.

The snow is falling as Amtrak heritage engine #130 (P42DC) leads the Winter Park Express Ski Train around the curve at Crescent, Colorado.

The California Zephyr has just passed an eastbound empty BNSF coal as it runs west towards Denver on the Brus Sub.

Amtrak's California Zephyr runs with a triple engine configuration as it passes through Crescent, Colorado and by Gross Reservoir, which can be seen in the background.

The California Zephyr runs one car short as it passes through Rocky, Colorado and will soon climb through the Big Ten Curve. The rock formations you see in the distance are the Flatirons, in Bou... (more)

The California Zephyr #6 was nearly 14 hours late getting out of Denver, enabling this shot as it passes through Keenesburg on the Brush Sub with the Colorado Rocky Mountains in the background.

Amtrak engine 27 (P42DC) leads the Winter Park Express Ski Train from Denver as a golden sunrise greets the crew and passengers.

After running through 27 tunnels on the Moffat Line the Winter Park Express Ski Train runs through the canyon leading to Tolland, Colorado and will soon enter the 6.2-mile-long Moffat Tunnel.

The California Zephyr drops down into Coal Creek Canyon from Blue Mountain and gets ready to make the 2% grade climb to Tunnel #1.

The California Zephyr runs through Hudson, Colorado in freezing fog and a temperature of -11 degrees.

The snow is deep, and the temperatures are -4 degrees as the California Zephyr runs through a winter wonderland at Crescent, Colorado on the Moffat Tunnel Sub.

The Winter Park Express Ski Train runs through a winter wonderland at Tolland, Colorado thanks to a snowstorm the night before.