UP 4014 departs Denver with the "2022 Museum Special" as it approaches the UP diamond in Commerce City with the Denver skyline in the background.

The UP 4014 leads the 2022 Museum Special over Sand Creek just moments before ducking under the I-270 overpass in Commerce City, Colorado.

Union Pacific's Big Boy beats across the diamond and Sand Creek in Commerce City as they approach Denver.

The California Zephyr runs through the gritty industrial area in Commerce City, pulling the private car Tioga Pass to Denver's Union Station.

UP 3974 (SD70M) runs solo back to Denver, passing between the Commerce City refineries on the Greeley Sub.

UP 9013 (SD70ACe) leaves the Denver, Colorado skyline behind and runs past the refineries in Commerce City on the Greeley Sub.

UP 2642 (ET44AH) leads an early morning freight through the refineries in Commerce City, Colorado.

UP 9013 (SD70ACe) leaves Denver, Colorado behind and runs between the oil refineries in Commerce City, Colorado on the Greeley Sub.

Heavy snow is falling as BNSF 5620 (ES44AC) leads a Boeing train east on the Brush Sub.

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.