An inspection special rolls south on the Shasta Route.

NS 172 eases through the Cramerton curves on a near 80 degree afternoon in February.

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

Union Pacific EMD DDA40X “Centennial” No. 6936 is serviced at UP’s North Yard at Denver, Colorado, on October 3, 2001. The unique locomotive will be powering an inspection train on the forme... (more)

After running up to "Frontier Days" in Cheyenne, Wyo., earlier in the day, UP 844 and UP DDA40X 6936 roll down the Greeley Subdivision back to Denver in the evening hours of July 20, 2013.

On April 13, 1999, the UP 6936 was coming west from Grand Junction on an engineering special. As I drove into Helper that morning to scope out a shot, the MDVROX was departing the yard with a four... (more)

Union Pacific’s EMD DDA40X “Centennial” No. 6936 powers a westbound engineering special at Crescent, Colorado, on October 4, 2001.

A Union Pacific Utah Statehood Centennial train cools its wheels in downtown Salt Lake City on Jan. 3, 1996.

Something is not quite right with the 6936.

Built for the Western Maryland in 1979, a CSX GP40-2 leads a slug southbound on the Cartersville Road Switcher, working industries between Etowah, TN and Cartersville, GA on the ex-L&N Knoxville a... (more)

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

Union Pacific's Cheyenne Frontier Days special leaves Denver behind as it heads North towards Cheyenne powered by the A-B-A set of E9's and Centennial DDA40X #6936.

It's that time of year again where the Union Pacific Railroad and The Denver Post run the annual Cheyenne Frontier Days passenger special between Denver, Colorado and Cheyenne, Wyoming. Union Paci... (more)

A BNSF Denver to Stockton trackage rights train meets a UP Salt Lake City to Denver inspection special at Geneva-Pipemill on Aug. 13, 1997.

Union Pacific 6936 makes her first journey across the former Denver & Rio Grande Western through Price Canyon on Aug. 13, 1997.