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6/16/2025
 
 
 
 
 
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:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 7:53:29 PM
Location:  Fremont, NE
Author:  Allan Love Jr.
Categories:  Roster,Station,Steam,Passenger,Track,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  404   Comments: 0
UP 3985
Title:  UP 3985
Description:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 8:02:09 PM
Location:  Fremont, NE
Author:  Allan Love Jr.
Categories:  Roster,Station,Steam,Passenger,Track,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  377   Comments: 0
UP 3985
Title:  UP 3985
Description:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 8:07:41 PM
Location:  Fremont, NE
Author:  Allan Love Jr.
Categories:  Roster,Station,Steam,Passenger,Track,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  330   Comments: 0
UP 3985
Title:  UP 3985
Description:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 8:11:13 PM
Location:  Fremont, NE
Author:  Allan Love Jr.
Categories:  Roster,Station,Steam,Passenger,Track,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  476   Comments: 4
UP 3985
Title:  UP 3985
Description:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 8:15:52 PM
Location:  Missouri Valley, IA
Author:  Allan Love Jr.
Categories:  Roster,Steam,Passenger,Track
Locomotives:  UP 3985(4-6-6-4)
Views:  389   Comments: 0
UP 3985
Title:  UP 3985
Description:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 8:18:57 PM
Location:  Missouri Valley, IA
Author:  Allan Love Jr.
Categories:  Roster,Steam,Passenger,Track
Locomotives:  UP 3985(4-6-6-4)
Views:  334   Comments: 0
UP 3985
Title:  UP 3985
Description:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 8:25:55 PM
Location:  Missouri Valley, IA
Author:  Allan Love Jr.
Categories:  Roster,Steam,Passenger,Track
Locomotives:  UP 3985(4-6-6-4)
Views:  383   Comments: 1
UP 3985
Title:  UP 3985
Description:  UP Challenger.
Photo Date:  9/23/2008  Upload Date: 9/23/2008 8:29:19 PM
Location:  Missouri Valley, IA
Author:  Allan Love Jr.
Categories:  Roster,Steam,Passenger,Track
Locomotives:  UP 3985(4-6-6-4)
Views:  347   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/24/2008 4:28:58 PM
Location:  Carroll, IA
Author:  Austin Seely
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  463   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/24/2008 4:28:59 PM
Location:  Carroll, IA
Author:  Austin Seely
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  802   Comments: 5
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/24/2008 4:29:00 PM
Location:  Boone, IA
Author:  Austin Seely
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  512   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/24/2008 4:29:00 PM
Location:  Boone, IA
Author:  Austin Seely
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  624   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/24/2008 4:29:01 PM
Location:  Boone, IA
Author:  Austin Seely
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  407   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/24/2008 4:29:01 PM
Location:  Boone, IA
Author:  Austin Seely
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  412   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/24/2008 4:29:02 PM
Location:  Boone, IA
Author:  Austin Seely
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  857   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:00:20 PM
Location:  Logan, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  290   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:00:48 PM
Location:  Logan, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  254   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:01:18 PM
Location:  Logan, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  301   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:01:45 PM
Location:  Baird, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  239   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:02:16 PM
Location:  Baird, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  341   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:02:48 PM
Location:  Haley, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  228   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:03:29 PM
Location:  Haley, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  294   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:04:01 PM
Location:  Haley, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  300   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:04:29 PM
Location:  Haley, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  345   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:05:04 PM
Location:  Westside, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  244   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:05:38 PM
Location:  Westside, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  252   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:06:27 PM
Location:  Westside, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  298   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:07:01 PM
Location:  Westside, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  253   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:07:48 PM
Location:  Westside, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  537   Comments: 6
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:08:23 PM
Location:  Westside, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  284   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 11:09:18 PM
Location:  Carroll, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  282   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 10:59:13 PM
Location:  Arion, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  295   Comments: 1
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/23/2008  Upload Date: 9/23/2008 10:59:43 PM
Location:  Denison, IA
Author:  Sam Botts
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  236   Comments: 1
UP 3985 Challenger passing Daytons Bluff yard in St Paul MN in 2007.
Title:  UP 3985 Challenger passing Daytons Bluff yard in St Paul MN in 2007.
Description:  ALWAYS keep your camera with you. This is why.
Photo Date:  9/25/2008  Upload Date: 10/6/2011 12:03:38 PM
Location:  Minneapolis, MN
Author:  S Kotnour
Categories:  Roster,Scenic,Yard,Steam,Passenger,Action
Locomotives:  UP 3985(4-6-6-4)
Views:  416   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/26/2008  Upload Date: 4/1/2009 12:37:16 AM
Location:  Farmington, MN
Author:  Eric Carlson
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  557   Comments: 0
UP 3985
Title:  UP 3985
Description:  UP 3985 takes the clear signal and heads for the depot track near the old Union Depot where it will be on display for the weekend.
Photo Date:  9/26/2008  Upload Date: 9/27/2008 3:19:53 PM
Location:  Saint Paul, MN
Author:  Robert Ball
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  297   Comments: 1
Heading For The Green
Title:  Heading For The Green
Description:  UP 3985 heads for the green signal at the old Milwaukee/Rock Island junction in Rosemount. Where the UP and CP/PGR lines now part. Love the huge American flag on the first canteen car. Note the group of folks out greeting the crew in the Challenger's cab. I wonder if the fireman hanging out of the window was the famous Jack Whellihan?
Photo Date:  9/26/2008  Upload Date: 9/27/2008 6:42:07 PM
Location:  Rosemount, MN
Author:  Richard Krebes
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  664   Comments: 0
"Extra 3985"!
Title:  "Extra 3985"!
Description:  I always thought it was cool how UP and SP steamers had signs the train number could be displayed on. Thus the Union Pacific 3985 proudly proclaims this train as the "Extra 3985". Or to use the official name for this run, the "Twin Cities Limited". Charging north for St. Paul through Rosemount, MN watched by folks and fans on the east and west sides of the Spine Line (which the UP shares with the CP/PGR between Rosemount and Comus, MN). Incidentally, ever since the UP/CNW merger I was thirsting to see eithier the 844 or 3985 pay the Twin Cities a visit. A factor which lessened my sadness over the passing of the North Western. Finally, thirteen years later (and having missed the 3985 in 2002) I could finally write this in my railfan notes: "Yippie! At last I have seen UP steam ..." And what a steamer is the 3985! I especially loved her deep, melodious whistle.
Photo Date:  9/26/2008  Upload Date: 9/27/2008 6:41:24 PM
Location:  Rosemount, MN
Author:  Richard Krebes
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  709   Comments: 1
Observation Car "St. Louis"
Title:  Observation Car "St. Louis"
Description:  Bringing up the markers on the 3985's "Twin Cities Limited" train is obs car St. Louis. By now the train had slowed to take the switch onto the Spine line up to St. Paul at the former Milwaukee/Rock Island junction marked by the green signal in the distance.
Photo Date:  9/26/2008  Upload Date: 9/27/2008 6:42:50 PM
Location:  Rosemount, MN
Author:  Richard Krebes
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  644   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/27/2008  Upload Date: 9/27/2008 11:42:53 PM
Location:  Saint Paul, MN
Author:  Max Koehn
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  477   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/27/2008  Upload Date: 7/20/2009 10:46:44 AM
Location:  Saint Paul, MN
Author:  Nathan Petersen
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  716   Comments: 0
Challenger
Title:  Challenger
Description:  UP 3985 Crosses the Mississippi in St. Paul, MN. A rolling landmark passes the Landmark Brewery.
Photo Date:  9/28/2008  Upload Date: 12/29/2008 12:38:20 AM
Location:  Saint Paul, MN
Author:  Rick Oswald
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  373   Comments: 1
UP 3985 Passing through Savage MN
Title:  UP 3985 Passing through Savage MN
Description: 
Photo Date:  9/28/2008  Upload Date: 10/1/2008 3:09:42 PM
Location:  Savage, MN
Author:  Rick Oswald
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  428   Comments: 0
3985 Cab
Title:  3985 Cab
Description: 
Photo Date:  9/29/2008  Upload Date: 10/1/2008 3:21:45 PM
Location:  Saint Paul, MN
Author:  Rick Oswald
Categories:  Steam
Locomotives:  UP 3985(4-6-6-4)
Views:  3322   Comments: 0
Eddystone Builders Plate
Title:  Eddystone Builders Plate
Description:  Casting Info
Photo Date:  9/29/2008  Upload Date: 10/1/2008 3:22:44 PM
Location:  Saint Paul, MN
Author:  Rick Oswald
Categories:  Steam
Locomotives:  UP 3985(4-6-6-4)
Views:  331   Comments: 0
ALCO Builders Plates
Title:  ALCO Builders Plates
Description:  Builders Plate
Photo Date:  9/29/2008  Upload Date: 10/1/2008 3:22:20 PM
Location:  Saint Paul, MN
Author:  Rick Oswald
Categories:  Steam
Locomotives:  UP 3985(4-6-6-4)
Views:  344   Comments: 0
UP 3985 Engineers View
Title:  UP 3985 Engineers View
Description: 
Photo Date:  9/29/2008  Upload Date: 10/1/2008 3:23:02 PM
Location:  Saint Paul, MN
Author:  Rick Oswald
Categories:  Steam
Locomotives:  UP 3985(4-6-6-4)
Views:  299   Comments: 1
UP 3985 Firebox Flash Tubes
Title:  UP 3985 Firebox Flash Tubes
Description:  Firebox Flash Tubes
Photo Date:  9/29/2008  Upload Date: 10/1/2008 3:23:23 PM
Location:  Saint Paul, MN
Author:  Rick Oswald
Categories:  Steam
Locomotives:  UP 3985(4-6-6-4)
Views:  544   Comments: 0
UP 3985
Title:  UP 3985
Description:  St. Paul MN
Photo Date:  9/29/2008  Upload Date: 9/29/2008 5:28:46 PM
Location:  Saint Paul, MN
Author:  Rick Oswald
Categories:  Steam
Locomotives:  UP 3985(4-6-6-4)
Views:  370   Comments: 0
UP 3985
Title:  UP 3985
Description: 
Photo Date:  9/30/2008  Upload Date: 1/1/2009 11:58:37 PM
Location:  Mankato, MN
Author:  Joe Musolf
Categories: 
Locomotives:  UP 3985(4-6-6-4)
Views:  779   Comments: 4


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