Union Pacific Challenger is a few miles out of Laramie on the windy Wyoming plains. Here it executes a photo run-by at Milepost 561, two miles east of Forelle.

After turning on the wye at Laramie, Wyoming, Union Pacific Challenger 3985 travels east through the yard. Soon it will be taking its train toward Denver, turning the train over to a Centennial un... (more)

Union Pacific’s transcontinental route west only spends a few miles in far northeast Colorado following the watercourses of the South Platte River and then Lodgepole Creek while going through th... (more)

Beside the usual lineup, Union Pacific’s Cheyenne diesel shop has a visitor. It’s the day before a Denver – Laramie excursion, and 4-6-6-4 3985 is having its boiler warmed up by the shop’s... (more)

A fan trip operated by the Union Pacific for the Union Pacific Historical Society (which was having a convention in Ontario CA) finds the railroad’s “Challenger” locomotive, 4-6-6-4 3985, te... (more)

With a Rio Grande freight passing on the left, and railfans on the right taking photos and quickly heading back to their cars, Union Pacific 3985 puts on a show as it slowly heads south to the Uni... (more)

UP $-6-6-4 3985 on a photo runby on Sherman Hill. We Had About ten Runbys That Day. Those were wonderful trips

UP 3985 being serviced next to the UP Salt Lake City shops. The shops now belong to Utah's Frontrunner light rail and the logo has been removed.

UP 3985 crossing a curved bridge near Cutler Dam.

After backing clear of the Laramie yard leads, Union Pacific Challenger 3985 pulls its consist forward on the southernmost yard track to reach a wye to turn back toward Cheyenne. The structures in... (more)

Union Pacific 3985 puts on a show, as she lays down the smoke.

Back when Union Pacific 3985 was a coal burner. Showing off her beauty on Sherman Hill.

Union Pacific Challenger 3985 is under steam and positioned next to the Cheyenne engine house. Tomorrow, the big Alco will be making a round trip to Laramie.

UP 3985 puts on a show as it departs the south side of Chicago, IL with a NRHS fantrip in June of 1993.

UP3985 performs yet another photo runby on a Cheyenne to Laramie excursion in 1988. This location is somewhere on #3 Track near Harriman, WY, and would be one of 8 photo runbys made on that wonder... (more)