The Union Pacific Big Boy locomotive, built in the 1940s, will make stops in California as part of its first cross-country ...

Union Pacific’s legendary Big Boy No. 4014, the world’s largest operating steam locomotive, will be making a whistle stop in ...

Dec. 29—Smoke billows from the stack of the steam-powered tractor as it chugs along, sounding like a train locomotive. At a top speed of just under 6 mph, the 150 Case Road Locomotive moves ...

Union Pacific's Big Boy No. 4014 steam engine embarks on its first coast-to-coast tour to celebrate America's 250th anniversary.

(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 ...

CHEYENNE, Wyo. — The world's largest steam locomotive is returning to the rails this year in honor of America's 250th anniversary. Union Pacific Railroad said its first-ever coast-to-coast steam tour ...