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 ...

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, ...

The Union Pacific Railroad used to be obsessed with power. The railroad spent decades searching for and developing one locomotive to rule them all. This search resulted in icons like the Big Boy and ...

The world’s largest operating steam locomotive is being readied for a spectacle that will stretch from ocean to ocean in 2026 ...

Cheyenne-based Big Boy 4014, the world's largest operating steam locomotive, will make its first ever coast-to-coast tour ...

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 ...

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 has announced the first leg of the tour of its legendary Big Boy No. 4014 locomotive will begin by leaving ...