Cover of the advertising brochure for the Sellner Tilt-A-Whirl amusement park ride, 1928. Sellner Collection, Rice County Historical Society, Faribault. Used with the permission of Rice County Historical Society.

Children at Wildwood Amusement Park in the first Tilt-A-Whirl, built by Herbert Sellner in Faribault and moved to White Bear Lake. Photograph collection, White Bear Lake Historical Society. Used with the permission of White Bear Lake Historical Society.

The first Tilt-A-Whirl, built by Herbert Sellner in James Chapman’s garden in Faribault, 1926. It was later purchased by the Wildwood Amusement Park in White Bear Lake. Photograph collection, White Bear Lake Historical Society. Used with the permission of White Bear Lake Historical Society.

Advertising brochure for the Sellner Water Wheel, 1923. Used with the permission of Rice County Historical Society. Sellner Collection, Rice County Historical Society, Faribault. Used with the permission of Rice County Historical Society.

Cover of the advertising brochure for the Sellner Water Toboggan Slide, 1923. Sellner Collection, Rice County Historical Society, Faribault. Used with the permission of Rice County Historical Society.

Tilt-A-Whirl at the Minnesota State Fair, 1969. Photograph Collection, Minnesota State Fair Archives, Falcon Heights. Used with the permission of the Minnesota State Fair Archives.

Pottery sherds of the Fox Lake ceramic-ware type—the same type found at Mountain County Park in 1976. The sherds pictured here were excavated in northern Iowa in 2015. From M. A. Hoofnagle’s “Bits and Pieces: A Case for Holistic Analysis in the Study of Ceramic Archaeology” (honors thesis, University of Iowa, Spring 2017).

A map showing the extents of Mississippian and Mississippian-influenced cultures, including the and Oneota peoples. Photograph by Herb Roe. CC BY-SA 3.0.