284K views · 4.4K reactions | Yesterday we saw a little, but mighty, Heisler in action... today, it's big and mighty Union Pacific 3985. | Railfan Depot | Facebook

19K views · 1K reactions | The Union Pacific Challenger 3985 heads to Chicago for the 1993 NRHS Convention. From the Pentrex show "Steam to Chicago – The 1993 NRHS Convention" https://rfd.video/S2Chicago | Steam Giants | Facebook

60K views · 4.2K reactions | Watch Union Pacific No. 8444 in the late 1960s with a look at Union Pacific 3985 with an uncertain future, rusting away at Cheyenne, Wyoming. From the GSVP show "Union Pacific 844, The Early Years" https://rfd.video/Early844 | Steam Giants | Facebook

Several great run-bys of Union Pacific Challenger #3985 in Texas. From the Railway Productions show "Challenger 3985" https://rfd.video/Challenger3985 | Steam Giants

81K views · 4.9K reactions | Union Pacific Challenger 3985 rolls past the cement plant at Victorville, California. The huge 4-6-6-4 locomotive traveled to Southern California in May, 1994 to celebrate the Union Pacific Railroad Historical Society’s Los Angeles Chapter’s annual convention. From the Pentrex show "UP 3985 Over Cajon" https://rfd.video/3985Cajon | Steam Giants | Facebook

31K views · 7.8K reactions | Fresh from her restoration in 1982, Union Pacific Challenger #3985 begins her first tour. From the WB Video show "Challenger '82, Union Pacific #3985" https://rfd.video/Challenger82 | Steam Giants | Facebook

28K views · 5.3K reactions | Union Pacific 3985 rolls past near Jean, NV, about 30 miles west of Las Vegas. From the Pentrex show "UP 3985 over Cajon" https://rfd.video/3985Cajon | Steam Giants | Facebook