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Hanging Rock and Wabash Reef
Hanging Rock and Wabash Reef consists of two, one-acre sites along the south bank of the Wabash River. Both contain natural exposures of limestone reef deposits characteristic of Silurian rocks of the midwestern United States, most of which are exposed only in quarries. Hanging Rock is an impressive natural exposure of an exhumed reef that rises 75 feet above the Wabash River. Wabash Reef, one of the best known fossil reefs in the world, has been the subject of numerous studies responsible for the development of modern reef theory.
Location: Wabash County, IN
Year designated: 1986
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