Mike Thomas's Collection
7/4/2025
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Home
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Union Pacific Railroad Company
>
Locomotives
>
Alco 4-8-8-4
> UP 4012
Pictures of UP 4012
Owner:
Union Pacific Railroad Company
Model:
Alco 4-8-8-4
Built As:
UP 4012 (4-8-8-4)
Serial Number:
69583
Order No:
S-1844
Frame Number:
23¾X32 cylinders, 68" drivers
Built:
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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Title:
Steamtown National Historic Site
Description:
The Big Boy
Photo Date:
10/31/2006
Upload Date:
11/1/2006 9:16:01 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
Locomotives:
UP 4012(4-8-8-4)
Views:
695
Comments:
0
Title:
Steamtown National Historic Site
Description:
The tender of the Big Boy.
Photo Date:
10/31/2006
Upload Date:
11/1/2006 9:19:26 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
Locomotives:
UP 4012(4-8-8-4)
Views:
846
Comments:
0
Title:
Steamtown National Historic Site
Description:
Cab section of the Big Boy.
Photo Date:
10/31/2006
Upload Date:
11/1/2006 9:25:07 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
Locomotives:
UP 4012(4-8-8-4)
Views:
870
Comments:
0
Title:
Steamtown National Historic Site
Description:
The Big Boy
Photo Date:
10/31/2006
Upload Date:
11/1/2006 9:43:45 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
Locomotives:
UP 4012(4-8-8-4)
Views:
712
Comments:
0
Title:
Steamtown National Historic Site
Description:
The Big Boy
Photo Date:
10/31/2006
Upload Date:
11/1/2006 9:47:02 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
Locomotives:
UP 4012(4-8-8-4)
Views:
846
Comments:
1
Title:
Steamtown
Description:
Big Boy.
Photo Date:
11/25/2009
Upload Date:
11/26/2009 7:43:08 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
Locomotives:
UP 4012(4-8-8-4)
Views:
619
Comments:
0
Title:
Steamtown
Description:
Freshly painted Big Boy
Photo Date:
11/25/2009
Upload Date:
11/26/2009 7:42:36 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
Locomotives:
UP 4012(4-8-8-4)
Views:
654
Comments:
0
Title:
Steamtow`'s 2010 Railfest
Description:
Inside the firebox of a Big Boy.
Photo Date:
9/4/2010
Upload Date:
9/5/2010 9:38:49 PM
Location:
Scranton, PA
Author:
Mike Thomas
Categories:
InCab,Steam
Locomotives:
UP 4012(4-8-8-4)
Views:
1165
Comments:
0
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