FOREST CITY, IA—Winnebago Industries Inc. announced Monday plans to move the manufacturing of its Class A diesel motorhomes here from Junction City, OR.

"The Music Man” takes place in a Midwestern hamlet called River City. The town that it’s based on is Mason City, IA, and the river that flows through it is the Winnebago. If you follow that river a few miles west, you’ll end up in Forest City, which is home to another American classic: Winnebago motor homes.