A Union Pacific Officer Special gets ready to leave the North Yard in Denver, Colorado and will run into the Colorado Rockies for the Moffat Tunnel.

UP 1507 (GP40M) passes the Union Pacific's operations building at the North Yard in Denver, Colorado.

As light snow falls over Denver, Colorado, the California Zephyr 5 train gets ready to back into Union Station, which sits amongst the high-rise buildings.

Long live the Warbonnet! BNSF 704 (Dash9) pulls up for service at the engine facility in Denver, Colorado.

Here we get a good look of the new Phase VII paint scheme that has started to grace the P42DC's as the California Zephyr 6 train runs past the BNSF's intermodal facility in Denver, Colorado.

The California Zephyr 6 train rousts the pigeons as it runs past the Union Pacific's North Yard in Denver, Colorado.

BNSF 9275 (SD70ACe) joins a vintage Cascade Green Burlington Northern SD40-2 as they await service at the engine facility in Denver, Colorado.

For the first time the California Zephyr 5 train had two of the new Phase VII P42's leading for the cross-country journey.

Heavy snow falls at Denver's Union Station as RTD 4001 (Hyundai Eagle P3) uses power from the catenaries to move through the yard.

Sunrise catches BNSF 2949 (GP39-2) waiting for order to go sort cars in the Denver Yard.

UP 695 (GP38N) wait with three other units to take their turn at shuffling cars in the Union Pacific's North Yard in Denver, Colorado.

The California Zephyr 6 train runs over the South Platte River as it leaves downtown Denver over 21 hours later than scheduled. The train was held at Frazer, Colorado while winds over 98 mph batt... (more)

RTD 4034 (Hyundai Eagle P3) leaves Denver Union Station behind and will run on the A-Line to Denver International Airport.

The Royal Gorge, D&RGW train 1, is departing Denver Colorado in 1953. Otto Conrad Perry photo, from my collection.

Snow is falling as BNSF 5874 (ES44AC) joins a Warbonnet, a Norfolk Southern Pony and an Executive Grinstein while they wait for service at the engine facility in Denver, Colorado.