National Natural Landmarks

Lake Thompson

Lake Thompson
Lake Thompson

The largest natural lake bed in South Dakota, Lake Thompson contains a large undisturbed and unmanipulated marsh. The site is an outstanding waterfowl breeding and resting area.

Location: Kingsbury County, SD ; Kingsbury County, SD

Year designated: 1975

Acres: 8,682

Ownership: State




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Please remember, National Natural Landmarks (NNLs) are not national parks. NNLs are owned by a variety of public and private entities and allowing visitation is at their discretion. Many NNL sites maintain public websites where additional information may be found.

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