DENVER (KDVR) — One of the world’s largest locomotives passed through Colorado in October, operating much like it did when it was first built in the mid-1900s. The train, known as Big Boy No ...

Big Boy,” a 1.2 million-pound locomotive, is back in Colorado after being restored to the world’s largest operating steam locomotive — and there’s one more chance to see it this weekend.

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

Union Pacific’s Big Boy, a 1.2 million-pound locomotive put into service in 1941, rolls into Kansas City on Tuesday, Oct. 15, 2024. Only 25 of this kind of train were built and this is the last ...

Although this year’s excursion was limited, UP said, the Big Boy and the Lincoln Locomotive will return to the rails “in a big way” in 2026 to celebrate America’s 250th anniversary. Stay tuned for ...

People gather to get a close view of the Big Boy locomotive as it arrives in Greeley on Wednesday, Oct. 23, 2024. (Jim Rydbom/Staff Photographer) Thousands of people line the railroad tracks while ...

DENVER (KDVR) — The world’s largest operating steam locomotive, known as Big Boy No. 4014, is coming back to Colorado — and this time, it’s bringing a friend. Union Pacific, a railroad ...

Thursday The Union Pacific’s Big Boy 4014 steam locomotive will make a two-whistle stop from 11:30 a.m. to noon at the railroad crossing by the Colorado Model Railroad Museum, 680 10th St., Greeley.

DENVER (KDVR) — One of the world’s largest locomotives passed through Colorado in October, operating much like it did when it was first built in the mid-1900s. The train, known as Big Boy No ...