For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.


John Heinz National Wildlife Refuge at Tinicum

John Heinz National Wildlife Refuge at Tinicum
John Heinz National Wildlife Refuge at Tinicum

The John Heinz National Wildlife Refuge at Tinicum contains a portion of the largest freshwater tidal wetland in Pennsylvania, including representative tidal marsh flora and fauna.

Location: Philadelphia County, PA

Year designated: 1965

Acres: 205

Ownership: Federal

For additional information see:


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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