Heavy snow is falling as UP 1817 (SD40N) leads a three motor lash up as it heads to the North Yard in Denver, Colorado.
Snow has blanketed the Colorado Railroad Museum's Denver Leadville & Gunnison #191, a Baldwin 2-8-0 locomotive built in 1880.
The California Zephyr runs under the Park Avenue Viaduct as it leaves Downtown Denver, Colorado.
The California Zephyr heads towards the east portal of the Moffat Tunnel, kicking up snow along the tracks.
The California Zephyr emerges from Tunnel #1 at Plainview, Colorado after a strong winter storm and freezing fog has frosted the landscape.
The vantage point on the top of the hill next to Tunnel #1 provides a view of the California Zephyr as it runs through Coal Creek Canyon, Colorado.
Amtrak engine #135 (P42DC) whips up the snow pulling the California Zephyr through Leyden, Colorado as it leaves the Denver Area for the Moffat Tunnel Sub.
Heavy snow falls in the UP's North Yard, catching three light motors in an echelon formation as they each work a track.
Heavy snow falls in the Union Pacific's North Yard as a crew member of UP 700 (GP38N) gets ready to throw a switch.
The California Zephyr exits the first of 30 tunnels as it heads into the Colorado Rockies during a heavy snow storm.
Heavy snow and freezing fog greet the California Zephyr as it gets ready to enter the east portal of the Moffat Tunnel at Tolland, Colorado.
The California Zephyr whips up the snow as it heads towards the east portal of the Moffat Tunnel at Tolland, Colorado.
It was a magical morning on the Moffat as freezing frost and snow flock the entire valley, providing a winter wonderland for the passengers and crew on the California Zephyr as it heads into the C... (more)
A BNSF stack train runs south on the Joint Line through Palmer Lake, Colorado.
Snow overnight fell on DRGW 3011 (GP30) and Rio Grande caboose in the yard of the Colorado Railroad Museum in Golden, Colorado.