After spending the night camped next to the Kelso depot, the first eastbound of the morning had a big surprise, DD40 UP 6936 on the point! The train has stopped to switch out cars in the small Kel... (more)

Right at Home Union Pacific "Centennial" DDA40X 6936 is spending its first morning inside its new home at the former Rock Island shops in Silvis, Illinois. The historic unit was ... (more)

Scenes like this were common during the Cheyenne Frontier Days while the train rested before returning to Denver. In 2022, it was announced The Centennial #6936 is leaving the UP Heritage Fleet b... (more)

After Rocky Mountain Railroad Club’s 1985 Denver-Laramie round trip reached Speer Junction, Wyoming, one of the largest diesels ever built replaced the largest active steam locomotive on the pla... (more)

After being on display at Portland's Union Station centennial celebration, Union Pacific 6936 departs the Rose City on the point of an intermodal train.

After picking up some maintenance-of-way cars in the small yard at Kelso, UP 6936 leads an eastbound manifest up Cima Hill. The town of Kelso in the distance to the right, and beyond are the Kels... (more)

UP6936 is panned along Highway 30 somewhere between Columbus and Grand Island, NE

Union Pacific train CBNP is approaching Grand Island, NE with an interesting consist on the point.

DD40X 6935 pulls the Wimmer Engineering Special on the Ogden Subdivision.

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)

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 Centennial 6936.

An eastbound Union Pacific engineering special approaches Tunnel 1 at Plainview, Colorado, on the afternoon of August 13, 2003. The 11-car passenger train is powered by impressive EMD DDA40X “Ce... (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)

Union Pacific EMD DDA40X “Centennial” No. 6936 powers a westbound engineering passenger special curving through Pinecliffe, Colorado, on October 4, 2001.