For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
The Orbicular Diorite site contains an unusual plutonic igneous rock consisting of hornblende, pyroxene, and feldspars.
Location: Davie County, NC
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