Union Pacific SD70M No.4003 ties down at Provo after bringing in a loaded Herzog Ballast Train. The crew on board will jump into the crewbus and head for Helper to pick up another train. UP 4003, CP's Tomah Sub. CP Train 695.

The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company (ALCO) between 1941 and 1944 and operated by the Union Pacific Railroad in revenue service until 1962.

UP 4003 - LW lunch counter - lounge. (T. BRUMBERG) UP 4003 - (NORTH EAST RAILS) UP 4003 - (RR PICTURE ARCHIVES) UPP 4003 Pacific Limited - (THE RAILFAN.NET USERNET ABPR PHOTO ARCHIVES) UPP 4003 Pacific Limited - (PAUL MARSHALL) UPP 4003 Pacific Limited - (RR PICTURE ARCHIVES) UPP 4003 Pacific Limited - (THE RAILFAN.NET USERNET ABPR PHOTO ARCHIVES)

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Union Pacific SD70M No.4003 ties down at Provo after bringing in a loaded Herzog Ballast Train. The crew on board will jump into the crewbus and head for Helper to pick up another train. UP 4003, CP's Tomah Sub. CP Train 695.

Union Pacific Railroad No. 4003 was a four-cylinder articulated 4-8-8-4 "Big Boy" type steam locomotive built by the American Locomotive Company in 1941 for the Union Pacific Railroad. The locomotive was later scrapped after it was retired.

Interesting that the 4019 has a non-standard short UP shield.... Beautiful patina of coal smoke on everything. I love it! > UP shield.... Plus the headlight assembly is different on 4019. Is it just subtle differences between the first order and second order of the 4000's you think? It was 4000-4015, then 4016-4025, yes?

Locomotives: UP 4003(4-8-8-4) Rolling Stock: UP 903050 (MofW Equipment) Author: mark mcdowell: Picture Categories: Yard,Steam: This picture is part of album: Mark McDowell, 1960's: Share User Comments. Name: Type: Comments: Date: Add …

Union Pacific 'Big Boy' Prototype Photo: UP: Road Number 4003 with 25-C-1 tender - 10/55

UP 4003 (4-8-8-4) Serial Number: 69574: Order No: S-1844: Frame Number: 23¾X32 cylinders, 68" drivers: Built: 8/1941: Notes: retired 2/62: Other locos with this serial: UP 4003(4-8-8-4) Page Controls : View: Pics Per Page: Title: UP 4003 : Description: Photo Date: 8/1/1962 Upload Date: 2/1/2006 2:36:57 PM :