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The Union Pacific Big Boy: Still The World's Most Powerful Steam Engine
That said, it's still impressive that the Big Boy 4014, a locomotive delivered by Union Pacific Railroad in December of 1941 ... and St. Louis, Missouri. The last existing Big Boy in operation ...
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5 traits of the Western Pacific Railroad
Compared to the likes of the Southern Pacific and Atchison, Topeka & Santa Fe, the Western Pacific Railroad can be considered ... with Denver & Rio Grande and Missouri Pacific owner George Gould ...