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Scott Dunlap's Collection
 
7/13/2025
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Home > Union Pacific Railroad Company > Locomotives > Alco 4-8-8-4 > UP 4012
Pictures of UP 4012
 
Owner: Union Pacific Railroad Company
Model:Alco 4-8-8-4Built As:UP 4012 (4-8-8-4)
Serial Number:69583Order No:S-1844
Frame Number:23¾X32 cylinders, 68" driversBuilt:8/1941
Notes:Schenectady 08/1941, retired 02/62, donated 08/64 to Steamtown
Other locos with this serial:  UP 4012(4-8-8-4)
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Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  9/11/2008  Upload Date: 5/17/2013 9:22:21 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  450   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:12:55 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  408   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:13:29 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  398   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:14:03 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  416   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:14:36 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  416   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:15:03 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  382   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:15:29 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  432   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:15:58 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  424   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:17:16 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  399   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:17:52 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  378   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:18:22 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  412   Comments: 0
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:18:50 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  423   Comments: 1
Union Pacific Big Boy
Title:  Union Pacific Big Boy
Description: 
Photo Date:  5/7/2013  Upload Date: 5/7/2013 8:19:19 PM
Location:  Scranton, PA
Author:  Scott Dunlap
Categories:  Roster,Steam
Locomotives:  UP 4012(4-8-8-4)
Views:  410   Comments: 0

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