Sioux Dells, South Dakota

Steven Dutch, Professor Emeritus, Natural and Applied Sciences, Universityof Wisconsin - Green Bay

Sioux Dells, South Dakota Interstate 29 north of Sioux Falls.
Sioux Dells, South Dakota The Dells of the Sioux are a narrow gorge in Sioux Quartzite about a mile south of Dell Rapids.
Sioux Dells, South Dakota Sioux Dells, South Dakota
Sioux Dells, South Dakota  
Sioux Dells, South Dakota Ripple Marks in Quartzite

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Created 15 November 2005, Last Update 06 June 2020