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 ...

When it comes to the most powerful engines in modern-day, you wouldn't be alone if your mind immediately went to the highly ...

Jimmy Kimmel gave a salute to “The Late Show With Stephen Colbert” — and blasted rival network CBS — on Thursday evening, ...

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

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

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

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.

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.

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.