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Donaldson Cave System and Woods
Located within Spring Mill State Park, Donaldson Cave System and Woods is a tract containing 80 acres of prime virgin forest and a cave system associated with the Indiana karst region. Donaldson Cave includes three separate units that are interconnected by underground passageways.
Location: Lawrence County, IN
Year designated: 1972
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