The world’s largest operating steam locomotive is being readied for a spectacle that will stretch from ocean to ocean in 2026, turning a piece of mid‑century railroading into a rolling national event.

Union Pacific's iconic Big Boy No. 4014 steam locomotive will make a festive stop in Denver, featuring Santa and supporting Make-A-Wish.

Huge crowds of train fans turn out as the 1940s era Big Boy steam locomotive is making a rare trip cross country. It'll stop at Kansas City's Union Station from July 21-23, in between visits to St.

NORTH EAST — White steam vanished. Black smoke cleared. The chugga-chugg of the locomotive disappeared. A few minutes later, a little boy, wearing a Big Boy hat and a Big Boy shirt, began to sing the ...