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Union Pacific #4004

Built

1941

Class

4884-1

Configuration

4-8-8-4

Retired

1957

Disposition

Static Display

UP 4004 is one of the 25 Big Boy locomotives that were built. She was built by the American Locomotive Campaney in 1941 and was retired in 1957. She is now on static display in Holliday Park in Cheyene Wyoming.

Up4004a

UP 4004 at Holliday Park.

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