- History
{{multiple issues|{{notability|date=September 2010}}{{unreferenced|date=September 2010}} }}Big Slough in Kingsbury County, South Dakota is a local marsh, south-east of De Smet. HistoryThis was the slough that Laura Ingalls Wilder wrote about in her books, " By the Shores of Silver Lake" and "The Long Winter." {{coord|44|22|50|N|97|31|10|W|format=dms|display=title|type:waterbody_region:US-SD}}{{SouthDakota-geo-stub}} 2 : Landforms of Kingsbury County, South Dakota|Marshes of South Dakota |