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 ...

For the first time ever, both coasts could receive a visit from the world's largest operating steam locomotive.

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

The world's largest steam engine is coming back to Utah this spring in the first leg of its first-ever coast-to-coast tour, ...

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

CHEYENNE, Wyo. — Union Pacific’s Big Boy will return to California this spring in the first leg of its planned coast-to-coast ...

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.

(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 ...

ROCHELLE, Ill. (WTVO) — Union Pacific’s Big Boy No. 4014, the world’s largest steam engine train, is set to return to northern Illinois this week, and here’s where you can see it. The Big Boy 4014 is ...

HICKORY RIDGE, Ark. (KATV) — The historical steam engine locomotive, Union Pacific's Big Boy No. 4014, has made its way to Arkansas on the "Heartland of America Tour". The Big Boy is the largest steam ...