For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Gilpin's Falls is probably the best outcrop of undeformed early Paleozoic metavolcanic pillow basalts in the Middle Atlantic states. It is also a prime example of a fall zone stream.
Location: Cecil County, MD
Year designated: 1980
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