For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
The Glens Natural Area
The Glens Natural Area, located within Ricketts Glen State Park, is a relict eastern deciduous forest containing examples of stream erosion and spectacular waterfalls.
Year designated: 1968
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