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, turning a piece of mid‑century railroading into a rolling national event.

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 ...

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