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 ...

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

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

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.

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 ...

A dinosaur rolled into Kansas City Tuesday night. It’s not really a dinosaur, but the Union Pacific No. 4014 Big Boy steam locomotive that rumbled and hissed to a stop at Union Station to the delight ...

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

FORT WORTH, Texas — A 1.2-million-pound "Big Boy" locomotive returned Thursday to Fort Worth, delighting railfans who traveled from across the state to see the 83-year-old relic. The Union Pacific Big ...

Riddle me this: what has 24 wheels, weighs more than three Jumbo Jets, and can pull five miles (eight kilometers) of cargo at seventy miles per hour full steam? That last clue should easily give it ...

Oct. 19—On any other day, it would be strange to see people lining a quarter-mile of railroad track in the early afternoon. But Monday was Train Day in Claremore, and thousands flocked downtown to ...