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Big Walnut Creek

Big Walnut Creek
Big Walnut Creek

Big Walnut Creek is a branch of the Eel River formed as a result of glacial melt and postglacial water erosion. The site contains one of the few stands in Indiana where beech, sugar maple, and tulip poplar grow on alluvial Genesee soil and includes relict species of a postglacial forest that occupied the area 5,000 to 6,000 years ago.

Location: Putnam County, IN

Year designated: 1968

Acres: 502

Ownership: State, Private

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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