The world's largest operating steam train is in Denver. Union Pacific's legendary Big Boy No. 4014 locomotive made a pit stop ...

"Big Boy," a 1.2 million-pound locomotive, is back in Colorado after being restored to the world’s largest operating steam ...

Union Pacific's famous Big Boy locomotive, the world's largest steam engine, makes its way through Houston.

The world's largest steam locomotive chugged through Colorado Thursday as part of its limited summer tour. Here are some of ...

That said, it's still impressive that the Big Boy 4014, a locomotive delivered by Union Pacific Railroad in December of 1941, still holds distinction in the Guinness Book of World Records for the ...

The world's largest operating steam train is in Denver. Union Pacific's legendary Big Boy No. 4014 locomotive made a pit stop ...

GREELEY, Colo. — Union Pacific’s Big Boy began its only scheduled trip of 2025 today (July 17), heading from its home base in ...

OGDEN — A legendary locomotive made its return to Ogden this weekend. Union Pacific’s Big Boy No. 4014 made a weekend stop that drew thousands of visitors of all ages to Union Station from its ...

Union Pacific’s iconic steam locomotive Big Boy No. 4014 will stop in several Nebraska communities as part of Union Pacific’s celebration of its 150th anniversary.

Big Boy No. 4014 was delivered to Union Pacific in December 1941. The locomotive was retired 20 years later, having traveled 1,031,205 miles in its 20 years in service, according to Union Pacific.

OMAHA, Neb. — A piece of history made its way to the metro. Union Pacific's Big Boy No. 4014 arrived in Omaha on Monday, stopping near the Durham Museum.

The historical steam engine locomotive, Union Pacific's Big Boy No. 4014, has made its way to Arkansas on the "Heartland of America Tour".