BNSF 7524 (ES44C4) leads a freight past an RTD commuter train as it heads north on the Front Range Sub.

UP 817 (GP38N) sits in the North Yard in Denver, Colorado.

There is a variety of light and heavy power in the Union Pacific's North Yard waiting for service or assignments.

Private Car PPCX 800724 (Promontory Point) is lashed up to the back of the California Zephyr as it backs into Denver's Union Station.

Running on the old Denver Post Frontier Days Special schedule, #4014 leads a passenger special from Denver to Cheyenne.

UP 6045 (AC4400CW-CTE) gets ready to lead the Officer's Train out of the North Yard in Denver, Colorado.

Santa Fe E8M 84 leaves Denver Union Station on March 27, 1965 enroute to LaJunta on train 191, which is now consolidated with Colorado & Southern No.27 to Pueblo. At that terminal, the trains... (more)

HZRX 187 has had an interesting life. Built as a SD18 in 1960 for the Duluth Missabe & Iron Range, it then worked for St. Mary's Railroad and Shelly Materials before now working with the Rocky Mo... (more)

Union Pacific's #4014 BIG BOY (4-8-8-4) leaves the Mile High City and heads north on the Greeley Sub towards home base in Cheyenne, Wyoming.

Union Pacific Alco PA-PB. Photo by Al Chione , from my collection.

Snow and Steam Just getting underway for the westward trek to the crossover for a reverse move up the Belt Line and eventual return to Cheyenne, UP 4014 and crew have a cold journey ho... (more)

BNSF 6078 (ES44AC in the 25th Anniversary Markings) heads to a waiting train in the yard in downtown Denver, Colorado.

The California Zephyr runs through the BNSF yard in Downtown Denver, Colorado.

BNSF 5623 (AC4400CW) waits for a crew at the engine servicing facility in Denver, Colorado.

Then and Now. BNSF 8586 (SD70ACe) and BNSF 2745 (GP39E) were built 52 years apart. 2745 was built in 1962 as a GP30 for the CB&Q, and 8586 was built in 2014. Any bets on which one will survive ... (more)