UP 4006 - Big Boy 4-8-8-4 

Big Boy Type (4-8-8-4)
Built By: Alco (American Locomotive Works)
Built: cir. 1941 to 1943 / Weight: 762,000 lbs

Tender
Tender


UP X4006
UP X4006

UP X4006
UP X4006


UP X4006
UP X4006

UP 4006 (Alco 4-8-8-4)
UP 4006 (Alco 4-8-8-4)

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