Heavy frost from sub-zero temperatures cotes the trees and grass as the California Zephyr rounds the corner at Blue Mountain and heads towards Coal Creek Canyon.

Amtrak engine #157 (P42DC) leads the California Zephyr through flocked trees at Pinecliffe, Colorado.

Test Trains. Department of Transportation U30C no. 001 is seen on display with other equipment at the Pueblo Railway Museum in Pueblo, Colorado. The locomotive worked for many years at ... (more)

Santa Fe On Display. Atchison, Topeka and Santa Fe 4-8-4 "Northern" no. 2912 is seen on display at the Pueblo Railway Museum in Pueblo, Colorado. Built in January 1944, the lo... (more)

Royal Gorge at Rest. Royal Gorge Route Railroad locomotives 728 and 402 are seen resting at the railroad's maintenance facility in Cañon City, Colorado, along with a few other F-units.... (more)

The California Zephyr runs through Coal Creek Canyon as it heads towards Tunnel #1 on the Moffat Tunnel Sub.

Sunrise catches the California Zephyr running towards Keenesburg, Colorado as it heads to Denver on the Brush Sub.

UP 4533 (SD70M) leads an officer passenger train around the windbreak at Big Ten Curve as it heads into the Colorado Rocky Mountains.

Coors Brewing Critter #997 (SW1000) makes smoke as it strains to move a cut of grain hoppers in the yard in Golden, Colorado.

BNSF 1826 (SD40-2 in old school paint) sits in the engine servicing yard in Denver, Colorado.

RMRX 8020 leads the Rockies To Red Rocks train through Byers Canyon.

BNSF 8115 (ES44C4) leads a stack train through Littleton, Colorado as it heads south on the Joint Line.

BNSF 6295 (ES44AC) runs through the snow and the trees between Tolland and Rollinsville, Colorado.

Rollinsville, Colorado is getting a heavy dose of snow as BNSF 6295 (ES44AC) runs east on the Moffat Tunnel Sub.

BNSF 6295 (ES44AC) runs through the trees west of Rollinsville, Colorado on the Moffat Tunnel Sub.