The May, 1985 excursion from Denver to Laramie featured Union Pacific 4-6-6-4 3985 on the round trip between Speer Junction and Laramie. The Denver – Speer Junction legs were pulled by Centennia... (more)

On a beautiful clear morning in the spring of 1974, a pair of Centennials hustles an eastbound UP pig train off the eastern slope of Cajon Pass.

Way back when, if the Union Pacific was power short, even the #6936 was available for freight service. Here is proof as the big DDA40X gets the NPLAV-15 underway westbound at Green River, WY. Scan... (more)

UP 6937 is the first in a long line of stored DD40Xs in the Las Vegas yard. Photo taken with permission.

UP 6930 and UP 6929 lead a intermodal hotshot train down the 3% south track at Cajon siding. The track coming towards me is the north track heading to Sullivan's Curve.

It must have really been something to pace the world's largest diesel locomotive. By this time period all the high speed 8000 series SD40-2 locomotives have been returned to their normal gearing a... (more)

UP's hot Overland Mail West sweeps through the valleys east of the highest ridges of the Sierra Nevada, with the little town of Doyle in the distance. What a change in scenery this is compared to ... (more)

”Someday, This Will Be Mine!”

An aspiring young engineer holds onto the handrail of one of the world’s largest diesel locomotives as he poses for a portrait. In a few short h... (more)

A Union Pacific officer special rolls along the Sacramento River on a summer afternoon. In 1997, the railroad was washed away here by floodwaters.

An inspection special rolls south on the Shasta Route.

UP 6936 leads a directors special thru Mount Pleasant, WI in May of 2008.

One of the Union Pacific custom-built EMD DD40X units leads two other UP and an SP unit on a westbound freight up Sherman Hill. Grey skies foretell a snowstorm that will occur after dark.

Hermosa WY Oct 19 1977 -- DDA40X 6937 leads an eastbound mixed freight on Sherman Hill. The train is crossing over a former UP alignment.

UP morning eastbound hot pig train out of Los Angeles has just topped over the summit of Cajon Pass and is starting the descent of the east side of the pass.

DDA40X on display at UP's Downing B. Jenks Shop.