CEDAR RAPIDS, Iowa – Crowds gathered along the route as Union Pacific’s “Big Boy” steam locomotive left Cedar Rapids Friday, Sept. 6, 2024, on its way to Illinois. Big Boy No. 4014 departed on its “Heartland of America Tour” Aug. 28, from Cheyenne, Wyoming, and made it to Iowa this week. The steam locomotive stopped briefly in Belle Plaine on Thursday, Sept. 5, but had no “public” stop in Cedar Rapids, where it stayed overnight.