Union Pacific

Large crowds ventured to Marshall County on Friday to see the world’s largest operating steam engine in action. Union Pacific’s Big Boy No. 4014 made a whistle stop east of Argos.

Those planning to catch a glimpse of the Big Boy steam engine in Argos on Friday should note a slight change in plans.

Union Pacific’s Big Boy No. 4014 is on a coast-to-coast tour, through a partnership with Norfolk Southern. The trip will include brief “whistle-stops" on June 5 in Argos and July 16 in Knox.