Steam Locomotives Wiki
Register
Advertisement
Union Pacific #4004

Built

1941

Class

4884-1

Configuration

4-8-8-4

Retired

1958

Disposition

Static Display

UP 4004 is one of the 25 Big Boy locomotives that were built for the Union Pacific. He was built by the American Locomotive Company in 1941 and was retired in 1958. He is on static display in Holliday Park in Cheyenne, Wyoming.

Up4004a

UP 4004 at Holliday Park.

Advertisement