The world’s largest steam train is passing near Rockford as part of its 10-state route across the United States this summer.
The locomotive, officially known as Big Boy No. 4014, is heading east across the Mississippi River starting in late May to help celebrate America’s 250th birthday.
Here’s what we know about the train’s stops in Illinois.
What is Big Boy No. 4014?
Delivered to Union Pacific in 1941, the locomotive was among 25 built to haul wartime freight across the Continental Divide in Wyoming and Utah. Big Boy is the last one running, and in the 1960s was converted to burn oil instead of coal…