World’s largest steam engine — Big Boy — headed to Western Pa.

Something big is coming to Western Pennsylvania. The world’s largest operating steam engine, Union Pacific Big Boy 4014, is ...
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How the Horseshoe Curve is preparing for the arrival of the Big Boy steam locomotive

In celebration of America’s 250th birthday, the world’s largest steam locomotive is traveling across the country, and thousands will be watching from Horseshoe Curve in July. To maximize the ...