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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

Year designated: 1975

Acres: 8,682

Ownership: State


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Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.

Last Updated: June 28, 2012