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

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

Big Boy's Heartland of America Tour to include Colorado Union Pacific announced on June 17 that its legendary steam locomotive will embark on an eight-week Heartland of America Tour starting Aug. 29.

The Union Pacific Big Boy is still in the Guinness Book of World Records as the world's most powerful steam engine, and you can still ride one today.

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.

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

Union Pacific’s historic Big Boy steam locomotive No. 4014 is touring the Union Pacific system throughout 2019 to commemorate the transcontinental railroad's 150th anniversary.

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 Big Boy No. 4014 to steam into Illinois next week. Here's when to see it The 10-state 'Heartland of America' tour will make four stops in Illinois, including a public viewing day ...

As part of the Heartland of America Tour, Union Pacific’s Big Boy No. 4014 will be coming to Texas with multiple stops, including three in Southeast Texas.

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 historic Union Pacific Railroad locomotive known as Big Boy No. 4014 made a stop in Fort Worth during its ‘Heartland of America Tour.’ ...