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11/4/2025
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Home > Union Pacific Railroad Company > Locomotives > Alco 4-6-6-4 > UP 3985
Pictures of UP 3985
 
Owner: Union Pacific Railroad Company
Model:Alco 4-6-6-4Built As:UP 3985 (4-6-6-4)
Serial Number:70174Order No:S-1879
Frame Number:21X32 cylinders, 69" driversBuilt:6/1943
Notes:Challenger class 4664-4, donated to RRHMA.
Other locos with this serial:  UP 3985(4-6-6-4) CRR 676(4-6-6-4)
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UP 3985
Title:  UP 3985
Description: 
Photo Date:  6/17/2002  Upload Date: 5/15/2009 3:38:10 AM
Location:  Nelson, IL
Author:  Larry Gholson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  650   Comments: 0
3985 "Challenger"
Title:  3985 "Challenger"
Description:  The special Union Pacific steam train is seen departing West Chicago, Illinois, June 18, 2002 heading west. It is headed to Saint Paul, Minnesota to be displayed later. At this time the 4-6-6-4 “Challenger” steam locomotive, #3985, is the largest operating in the world. There are two sets of driving wheels and the frame is “articulated.” This way the wheels turn separately of the main frame to operate better where the track has tight turns. This engine was built in 1943. UP retired it from regular service in 1957. It was restored to operation once again in 1981 for use on special trips by UP. They converted it to run with oil instead of coal in 1990. UP ordered 105 “Challenger” locomotives between 1936 and 1943. They are about 122 feet long and weigh more than 1 million pounds. 3985 is the only one in operation of the two remaining. That is me (RLJ II) on the left videotaping at age 18. (Canon 35mm S.L.R. camera, Kodak Gold 800 print film)
Photo Date:  6/18/2002  Upload Date: 5/8/2019 8:54:52 AM
Location:  West Chicago, IL
Author:  Robert Jackson (father)
Categories:  Steam,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  925   Comments: 2
UP "Challenger" #3985 at West Chicago
Title:  UP "Challenger" #3985 at West Chicago
Description:  The special Union Pacific steam train is seen departing West Chicago, Illinois, June 18, 2002 heading west. It is headed to Saint Paul, Minnesota to be displayed later. At this time the 4-6-6-4 “Challenger” steam locomotive, #3985, is the largest operating in the world. There are two sets of driving wheels and the frame is “articulated.” This way the wheels turn separately of the main frame to operate better where the track has tight turns. This engine was built in 1943. UP retired it from regular service in 1957. It was restored to operation once again in 1981 for use on special trips by UP. They converted it to run with oil instead of coal in 1990. UP ordered 105 “Challenger” locomotives between 1936 and 1943. They are about 122 feet long and weigh more than 1 million pounds. 3985 is the only one in operation of the two remaining. (Canon 35mm S.L.R. camera, Kodak Gold 800 print film)
Photo Date:  6/18/2002  Upload Date: 5/8/2019 9:48:04 AM
Location:  West Chicago, IL
Author:  Robert Jackson (father)
Categories:  Station,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  1123   Comments: 2
UP "Challenger" #3985 steam engine!!!!
Title:  UP "Challenger" #3985 steam engine!!!!
Description:  The special Union Pacific steam train is seen departing West Chicago, Illinois, June 18, 2002 heading west. It is headed to Saint Paul, Minnesota to be displayed later. At this time the 4-6-6-4 “Challenger” steam locomotive, #3985, is the largest operating in the world. There are two sets of driving wheels and the frame is “articulated.” This way the wheels turn separately of the main frame to operate better where the track has tight turns. This engine was built in 1943. UP retired it from regular service in 1957. It was restored to operation once again in 1981 for use on special trips by UP. They converted it to run with oil instead of coal in 1990. UP ordered 105 “Challenger” locomotives between 1936 and 1943. They are about 122 feet long and weigh more than 1 million pounds. 3985 is the only one in operation of the two remaining. That is me (RLJ II) on the left videotaping at age 18. (Canon 35mm S.L.R. camera, Kodak Gold 800 print film)
Photo Date:  6/18/2002  Upload Date: 5/8/2019 8:51:08 AM
Location:  West Chicago, IL
Author:  Robert Jackson (father)
Categories:  Steam,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  844   Comments: 2
UP 3985
Title:  UP 3985
Description:  3985 heading south after a visit to St. Paul, MN
Photo Date:  6/20/2002  Upload Date: 6/24/2007 12:22:25 AM
Location:  Rosemount, MN
Author:  Rick Oswald
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  1207   Comments: 6
UP 3985, 809, 814 + 13x Car Train
Title:  UP 3985, 809, 814 + 13x Car Train
Description: 
Photo Date:  6/21/2002  Upload Date: 12/27/2024 10:28:02 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  707   Comments: 0
UP 3985, 809, 814, Me & My Mom
Title:  UP 3985, 809, 814, Me & My Mom
Description: 
Photo Date:  6/21/2002  Upload Date: 1/21/2025 5:40:59 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  711   Comments: 0
UP 3985 + Automobiles
Title:  UP 3985 + Automobiles
Description: 
Photo Date:  6/21/2002  Upload Date: 12/29/2024 7:31:41 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  419   Comments: 0
UP 3985 Cab, 809, 814 + 904304
Title:  UP 3985 Cab, 809, 814 + 904304
Description: 
Photo Date:  6/21/2002  Upload Date: 2/18/2025 11:28:39 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  711   Comments: 0
UP 3985 & the Crossing
Title:  UP 3985 & the Crossing
Description: 
Photo Date:  6/21/2002  Upload Date: 12/29/2024 7:31:43 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  432   Comments: 0
UP 3985 Fuel Tanks, Fire Box, Cab & Tender
Title:  UP 3985 Fuel Tanks, Fire Box, Cab & Tender
Description: 
Photo Date:  6/21/2002  Upload Date: 11/14/2022 8:39:20 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  572   Comments: 0
UP 3985 rain
Title:  UP 3985 rain
Description: 
Photo Date:  6/21/2002  Upload Date: 9/30/2015 2:06:30 AM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  1272   Comments: 0
UP 3985 & Me in the Rain
Title:  UP 3985 & Me in the Rain
Description: 
Photo Date:  6/21/2002  Upload Date: 2/3/2014 10:06:14 AM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  1558   Comments: 0
UP 3985 Rainy Day
Title:  UP 3985 Rainy Day
Description: 
Photo Date:  6/21/2002  Upload Date: 12/26/2024 8:37:05 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  442   Comments: 0
UP 3985 Smokes up
Title:  UP 3985 Smokes up
Description: 
Photo Date:  6/21/2002  Upload Date: 12/27/2024 10:28:04 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  395   Comments: 0
UP 3985 & Yellow Tape
Title:  UP 3985 & Yellow Tape
Description: 
Photo Date:  6/21/2002  Upload Date: 12/29/2024 7:31:44 PM
Location:  South Saint Paul, MN
Author:  Andrew Goblirsch
Categories:  Track
Locomotives:  UP 3985(4-6-6-4)
Views:  401   Comments: 0
Pounding southbound
Title:  Pounding southbound
Description: 
Photo Date:  6/22/2002  Upload Date: 4/23/2009 9:11:35 PM
Location:  Clarks Grove, MN
Author:  Paul Leach
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  635   Comments: 0
Easing through town
Title:  Easing through town
Description: 
Photo Date:  6/22/2002  Upload Date: 4/23/2009 9:10:13 PM
Location:  Northfield, MN
Author:  Paul Leach
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  741   Comments: 0
Excursion rolling southbound
Title:  Excursion rolling southbound
Description: 
Photo Date:  6/22/2002  Upload Date: 4/23/2009 9:10:52 PM
Location:  Medford, MN
Author:  Paul Leach
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  589   Comments: 0
UP 3985 heading for Des Moines
Title:  UP 3985 heading for Des Moines
Description: 
Photo Date:  7/1/2002  Upload Date: 10/31/2008 12:36:25 PM
Location:  Medford, MN
Author:  Jim Hinshaw
Categories:  Steam,Passenger,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  586   Comments: 0
UP 3985
Title:  UP 3985
Description:  The Cheyenne Frontier Days trin on the curve at La Salle
Photo Date:  7/20/2002  Upload Date: 9/15/2016 7:47:08 PM
Location:  La Salle, CO
Author:  Richard Kundert
Categories:  Steam,Passenger,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  541   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 4:58:38 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  671   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 4:58:27 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  604   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 4:58:51 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  689   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 4:59:08 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  617   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 4:59:23 PM
Location:  Marshalltown, IA
Author:  Jim Sands
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  616   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 4:59:33 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  614   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 4:59:48 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  581   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:00:06 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  642   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:00:22 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  893   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:00:34 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  756   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:00:51 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  580   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:01:06 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  645   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:01:19 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  649   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:10:33 PM
Location:  Marshalltown, IA
Author:  Jim Sands
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  639   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:10:51 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  575   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:11:03 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  639   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:11:24 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  653   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:11:38 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  919   Comments: 2
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:11:53 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  650   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:12:11 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  974   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:12:33 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  689   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:14:42 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  815   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:14:55 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  828   Comments: 0
UP 3985 on way to Boone
Title:  UP 3985 on way to Boone
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:15:21 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  638   Comments: 0
UP 3985 on way to Boone
Title:  UP 3985 on way to Boone
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 5:15:35 PM
Location:  Marshalltown, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  612   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 6:17:51 PM
Location:  Boone, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  642   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 6:18:07 PM
Location:  Boone, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  653   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 6:18:56 PM
Location:  Boone, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  639   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2002  Upload Date: 2/23/2006 6:18:22 PM
Location:  Boone, IA
Author:  Joe Ludley
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  692   Comments: 0

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