GREELEY, Colo. — The world's largest steam engine is back in Colorado. Union Pacific will bring Big Boy No. 4014 to Greeley from Tuesday to Wednesday, as part of a limited autumn excursion. The tour ...
Big Boy is 133 feet long and weighs 1.2 million pounds, requiring a “hinged” frame to help it get around curves.
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Union Pacific Big Boy 4014 Steam Train 2024
In 2024, the Big Boy embarked on another series of trips over the Union Pacific Railroad for public display to crowds of people all across the country. The first major excursion the 4014 made was from ...
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