Ferne Clyffe State Park has been known as an outstanding natural scenic spot for a century. An abundance of ferns, unique geological features and u...
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Cache River State Natural Area is situated in southernmost Illinois within a floodplain carved long ago by glacial floodwater of the Ohio River. Wh...
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Pyramid State Recreation Area consists of forested hills, lakes and ponds. Southern Illinois University owned and used 924 acres of the site for re...
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