The California Zephyr and the Winter Park Express Ski Train are parked at Denver's Union Station as heavy snow falls across the Front Range.

Amtrak engine #5 (P42DC) sits at the engine servicing facility as heavy snow falls across Denver and the Colorado Front Range.

Snow is falling as Amtrak's California Zephyr and Winter Park Express Ski Train sit on tracks 4 and 5 in Denver's Union Station.

An Electro-Motive Corporation FT set is running eastward at the D&RGW Burnham Yard in Denver Colorado on May 16th 1940. Otto Perry photo, from my collection.

An eleven car eastbound freight is seen leaving Denver Colorado on the Union Pacific line sometime during the 1950s. Otto Perry photo, from my collection.

UP 1865 (SD40N) sits in the Union Pacific's North Yard in Denver, Colorado waiting for orders or servicing.

A Norfolk Southern pony sits amongst the BNSF pumpkins waiting for service and the engine facility in Denver, Colorado.

A pair of Amtrak trains sit on tracks 4 and 5 at Denver's Union Station. Amtrak engine #163 (P42DC) will leads the California Zephyr 6 out of Denver and Amtrack engine #174 will lead the Colorado... (more)

Union Pacific 2698 Going through a snowy Colorado Crossing

Amtrak 129 Through Winter Park

BNSF 2857 (GP39-2) sits among other light power at the servicing facility in Denver, Colorado.

The Winter Park Express Ski Train leaves Denver's Union Station and runs through the numerous catenaries that support Denver's RTD Commuter Rail train system.

This view offers a good look at the detailed painting of the new Phase VII paint scheme for Amtrak engine #174 (P42DC).

Amtrak engine #174 in the new Phase VII paint brings the California Zephyr through the BNSF yard in Denver, Colorado.

After arriving in Denver on the front of the California Zephyr, Amtrak engine #174 gets positioned in the Denver Yard until the Winter Park Express Ski Train returns from its run to the ski resort... (more)