The snow is falling fast as UP 6417 (AC4400CW) brings a stack train into the east end of the Union Pacific yard in Chyenne, Wyoming.

UP 6417 (AC4400CW) runs over a bridge in Castle Rock, Colorado as it heads south with a military train on the Joint Line.

Snow is falling fast as UP 6417 (AC4400CW) leads a freight into the Union Pacific yard in Cheyenne, Wyoming, just as another freight heads out.

UP 6417 (AC4400CW) leads a military train through Littleton, Colorado as it runs south on the Joint Line.

UP 6417 (AC4400CW) leads a military train through Commerce City, Colorado.

UP 6417 (AC4400CW) crosses the South Platte River on the Belt Line as it heads to Denver.

ILXSA passes West Kolb as Eric from Central Penn Rail Productions films their passage on the left. One of 75 or so Ferromex units on horsepower hour payback to UP at the time is second out.

Fourteen years after the UP/SP merger what’s the chance of seeing a lash up like this? This is UP’s daily westbound manifest train on the ex D&RGW, the MNYRO. The two trailing SD60’s are Dir... (more)

Overlooking the Denver Metro Area, two trains can be seen over five miles away or eight rail miles away at Leyden near Arvada. The North Yard - Roper Yard manifest is seen heading west at Chemical... (more)

Three of Union Pacific’s dwindling fleet of ex SP AC4400’s lead the MNYRO out of the Horse Creek horseshoe curve on the ascent to Utah’s Soldier Summit. Location is just below Kyune on UPâ€... (more)

Three SP AC4400’s lead Union Pacific’s MNYRO westbound up Price River Canyon just east of Kyune in Utah. Also in the consist are 2 UP SD60M’s picked up in Helper yard. They are “dirt trai... (more)

A crewless train waits on the passing track on Union Pacific's shoreline subdivision. This is Wyoming coal heading for Sheboygan's coal power plant.