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Up bigboy 4006-2

4006 at the St. Louis Museum of Transportation.

Union Pacific #4006

Built

1941

Class

4884-1

Configuration

4-8-8-4

Retired

1957

Disposition

Static Display

UP 4006 was one of the 25 Big Boy Locomotives that where built. She was built by the American Locomotive Companey in 1941 and was retired in 1957. She is now on static display at the St. Louis Museum of Transportation.

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