The California Zephyr runs past a frozen puddle as temperatures hover near single digits at Commerce City, Colorado.

A weary looking Con Agra SW1200 waits to shuffle cars in the yard of the Commerce City Grain facility.

The Hudson Turn heads out of Commerce City with an ex-BN leader.

UP 7491 (C45ACCTE) leads a freight north on the Greeley Sub, leaving Denver behind and heading towards the UP yard in LaSalle, Colorado.

Shuffling ConAgra. A Shuttlewagon is seen sitting with a cut of covered hoppers sits at ConAgra Foods in Commerce City, CO.

UP 7491 (C45ACCTE) leads a freight northbound on the Greeley Sub, passing between two refineries in Commerce City.

Ex Warbonnet BNSF 559 (B40-8W) leads a freight train through the refineries at Commerce City, Colorado.

UP 7491 (C45ACCTE) leaves the smoky skies of the Denver skyline behind as it leads a freight north on the Greeley Sub.

Commerce City Grain. An eastbound unit coal train is seen passing the massive Commerce City Grain facility east of Denver.

Last of the Summer Sunsets at Barr
Warm low light glint off the BNSF heritage colors.

BNSF GEEP 2828 (GP39-3) runs a small freight through the Commerce City Refineries.

UP 7491 (C45ACCTE) leads a freight north on the Greeley Sub through the refineries in Commerce City, Colorado.

BNSF 4010 (DAsh9) shoves a sand train towards Denver on the Brush Sub, passing through the refineries of Commerce, City, Colorado.

The gritty vibe of the refineries in Commerce City, Colorado lends itself to imagining what the Big Boy would have looked like 70 years ago leaving Denver and heading home to Cheyenne, Wyoming.

A pair of fresh B40-8W's take a freight through Commerce City on the Brush Sub.