For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Little Grand Canyon Area
The Little Grand Canyon Area, located within the Shawnee National Forest, is an exceptional example of a large box canyon with vertical overhanging walls. The site contains a great diversity of ecosystems, including sandstone outcrops and overhangs, ravine slope forest, dry site oak-hickory forest, and hill prairies. The ravine is nationally known as a seasonal haven for a great variety of snakes that hibernate there.
Location: Jackson County, IL
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