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Tionesta Scenic and Research Natural Areas

Tionesta Scenic and Research Natural Areas
Tionesta Scenic and Research Natural Areas

The Tionesta Scenic and Research Natural Areas, located within the Allegheny National Forest, is the largest virgin forest in the hemlock-white pine/northern hardwood forest regions of North America.

Location: McKean County, PA ; Warren County, PA

Year designated: 1973

Acres: 4,131

Ownership: Federal


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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