The steep ramp that is the former Rio Grande Moffat Tunnel Line west of Denver, Colorado, can easily be seen in this view of an eastbound Union Pacific coal train dropping downgrade into Leyden, w... (more)

With brakes squealing and dynamic brakes humming, a heavy Union Pacific loaded coal train eases down the steep two percent grade into Leyden, Colorado, with a three locomotive set of mid-train DPU... (more)

The sun rises above downtown Denver in the distance, and glints off the side of the lead motors of an eastbound Union Pacific coal train rolling toward Leyden, Colorado, on January 26, 2007.

At sunrise on January 26, 2007, an eastbound Union Pacific coal train drops downgrade into Leyden, Colorado, leaving the front range mountains behind.

A westbound Burlington Northern Santa Fe Q train, led by Oakway Leasing EMD SD60 No. 9084, has almost reached the top of Bozeman Pass as it slowly works through Muir, Montana, on the afternoon of ... (more)

Before the rebuilding process can begin, an EMD Blomberg truck is carefully taken apart in the truck shop inside Union Pacific’s Jenks Shop in North Little Rock, Arkansas, on May 19, 2015.

On April 26, 1987, a pair of Metra commuter trains, with locomotives still in RTA colors, sit alongside some Chicago & North Western power at Harvard, Illinois. The brick factory in the background... (more)

It’s twilight on December 7, 2015, as Union Pacific GE AC4400CW-CTE No. 5687 sits inside the cavernous main hall of the former Rio Grande backshop at Burnham Shops in Denver, Colorado.

Union Pacific EMD SD40-2 No. 3299, GE AC4400CW No. 6781, EMD SD70M No. 5146 and EMD SD9043MAC No. 3681 sit outside Union Pacific’s Downing B. Jenks Shop near the north transfer table at North Li... (more)

Montana Rail Link EMD F45 No. 391 leads the MRL ML (Missoula to Laurel manifest) freight eastbound down the 2.2 percent grade of Mullan Pass approaching Austin, Montana, on September 2, 2003.

BN EMD GP39M No. 2805 leads westbound “Expediter” train 41 out of Savanna, Illinois, on the afternoon of October 13, 1990. The first few rebuilds of GP30s into GP39Ms by Morrison-Knudsen in 19... (more)

Before Union Pacific, and probably Southern Pacific too, the wash rack at Burnham Shops cleaned countless Rio Grande locomotives and passenger cars over the years. the earliest buildings at the Bu... (more)

Built in 1874, the shops and yard at Burnham, located a couple of miles south of downtown Denver, Colorado, were the main shop facilities for Rio Grande. In this later view on December 7, 2015, Un... (more)

Machinists in Union Pacific’s backshop at Burnham Shops prepare to remove a generator from the 4,400 hp 7FDL16 prime mover of UP GE AC4400CW-CTE No. 5687 during the locomotive’s overhaul on De... (more)

Two Oakway Leasing EMD SD60s, along with a pair of Cascade green locomotives, pull a Burlington Northern coal train toward Belmont and the summit of Nebraska’s Crawford Hill on July 9, 1994.