A westbound Union Pacific train changes crews in front of the depot at Cheyenne, Wyoming, in April 1984. The train is led by an imposing UP DDA40X No. 6935. Delivered by EMD in 1969-71, UP Nos. 69... (more)

Something is not quite right with the 6936.

While it really doesn't 'belong' on the Rio Grande, you can't help but stare in awe at the 6936.

No, this is not North Little Rock, this is Union Pacific DD40X #6944 looking good as new at Norfolk Southern's Juniata Shop in Altoona, Pennsylvania. The big Centennial has undergone a cosmetic r... (more)

Upon entering Nebraska out of Iowa it's practically impossible to miss this Centennial and the massive UP Bigboy that sit high up on the bluff in Kenefick Park overlooking Interstate 80.

Centennial 6936 trails 3rd out on UP Train OWVBT 20 which is all red at CP Charlie on the BNSF Ft. Scott Sub. The Big Jack was picked up in Cheyenne the day before for movement to North Platt... (more)

A severe thunderstorm has moved off to the east, but the lightning continues to illuminate the sky over the Union Pacific Jenks shops and the impressive DD40X UP 6938 that is on display.

Lighting streaks over the top of DD40X UP 6938 as a severe thunderstorm clears North Little Rock and heads east. UP 6938 is on display in front of the Union Pacific Jenks Locomotive Shops.

Two UP Century DD40A-X's are assisted by an SD24B and a GP30 up Cajon grade at Devore, Calif. on April 30, 1976. UP operates on AT&SF (new BNSF) trackage rights over Cajon Summit all the way to D... (more)

Union Pacific Centennial near Oroville.

6936 sits on the west wye at IRM.

Enjoying the High Life passengers aboard this Union Pacific passenger train are traveling in style and getting a great view of Puget Sound en-route to Seattle, WA.

The class unit herself 6900 with different font numbers, the first of 45 Centennials, has left Cheyenne and climbs eastward up Archer Hill, a favorite photo location on the elevated curve.

Union Pacific hotshot FTX lead by Big Jack 6929 and three SD40-2's blasts eastward through North Powder, OR competing direclty with long haul truckers plying the nation's Interstate Highways. Not... (more)