For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Tamarack Swamp is an outstanding example of a large headwater swamp occurring in a glacially blocked stream valley. The two bogs, rich in wetland vegetation and including rare species, are the finest examples of acid kettle hole bogs in glaciated northwestern Pennsylvania.
Location: Warren County, PA
Year designated: 1977
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