The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company between 1941 and 1944 and operated by the Union Pacific Railroad in revenue service until 1962.
The Union Pacific Big Boy is a type of simple articulated 4-8-8-4 steam locomotive manufactured by the American Locomotive Company between 1941 and 1944 and operated by the Union Pacific Railroad in revenue service until 1962.
Privacy and cookie policy
This site uses cookies to enhance your browsing experience, serve personalized content, and analyze traffic. By continuing to use this site you agree touse of cookies and stewardship of your data.