The 133-foot-long locomotive is the only Big Boy to still travel the tracks.

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

Union Pacific has released new details on the schedule for its first-ever coast-to-coast tour of its 'Big Boy' historic ...

The tour schedule for the western leg of Big Boy's historic coast-to-coast tour was announced Monday. The world's largest locomotive, which weighs ...

(NEXSTAR) — The ground rumbles. A billowing cloud of steam forms in the sky. Then suddenly, the 1.2 million-pound locomotive known as Big Boy No. 4014 is pulling into a station near you. It won’t be ...

Union Pacific (UP) is joining in the celebration of 250 years of American independence and innovation this year with its ...

Union Pacific will celebrate the 250th year of American independence with its first-ever coast-to-coast steam tour led by the Big Boy locomotive.

In the 1950s, a new kind of locomotive made even extreme hills easy for trains to climb. But this extra-powerful engine came ...