It is big. And loud. Furthermore, it belches steam. "It's the smell," says railroad fanatic Sam Sargent about a 1940s train engine known as the Union Pacific Big Boy, the largest, heaviest and most ...

CHEYENNE, Wyo. >> In its prime, a massive steam locomotive built in Schenectady, N.Y., known as Big Boy No. 4014 was a moving eruption of smoke and vapor, a 6,300-horsepower brute dragging heavy ...

DENVER (KDVR) — One of the world’s largest locomotives passed through Colorado in October, operating much like it did when it was first built in the mid-1900s. The train, known as Big Boy No. 4014, ...

One of the world’s biggest and most powerful steam locomotives is chugging to its big debut after five years of restoration work. Big Boy No. 4014 rolled out of a Union Pacific restoration shop in ...

Union Pacific's Big Boy No. 4014 steam engine embarks on its first coast-to-coast tour to celebrate America's 250th ...

The Union Pacific Railroad is restoring one of its last remaining steam engines, one of the largest in the world, to celebrate the 150th anniversary of the completion of the Transcontinental Railroad, ...

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This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — One of the world’s largest ...