Last Ride for 3985

Last of the Giants--Union Pacific Railroad

A Big Boy Day | Episode 3 - Big Boy Saves the Day! Stalled Mixed Freight Push in Blair, Nebraska!

RailScene USA Focus: Big Boy's Little Sister - Riding the Challenger UP # 3985 in the cab

The Challenger (Big Boy's Not-So-Little Sister)

Steam Weekend: Southern #4501

SP 4449 through the Gorge 4-11-18 (w/ pacing!)

Union Pacific Big Boy #4014 Steam Train Accelerating and Sanding Flues (8/27/21)

UP 844 how it operates from Running a Steam Locomotive Vol 2 Excerpt

Union Pacific Challenger #3985 little brother of Big Boy #4014 sprints on the U.P Mainline

UP Big Boy 4014 helps a stalled freight train in Blair Ne.

Union Pacific 844 Departs Cheyenne, WY July 2018

Train Station Episode 4 - Steve Lee - Manager of Union Pacific Railroad's Steam Crew - Retired

How a Steam Locomotive Works (Union Pacific "Big Boy")

The BigBoy is alive again!

The Challenger on Sherman Hill - English • Great Railways

Union Pacific Donation Special Departs Cheyenne, WY

Union Pacific Challenger 3985 Cab Ride on Cajon Pass | Sunday Morning Coffee & Trains

UP844 in Depth.

Return of the Big Boy [Full Length Program]

Steam Over Sherman 1984