For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Hemlocks Natural Area
Hemlocks Natural Area, located within Tuscarora State Forest, contains a virgin forest that has more resemblance to the hemlock-northern hardwood forests than to the oak-chestnut forests in which it is located.
Location: Perry County, PA
Year designated: 1972
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