For the more information about the air resources of the National Park Service, please visit http://www.nature.nps.gov/air/.
Lost Sea (Craighead Caverns)
The Lost Sea cavern system includes the largest known underground lake in the country, an abundance of crystal clusters called anthodites, stalactites, stalagmites, and a waterfall. The site once yielded bones and footprints of a giant Pleistocene jaguar.
Location: Monroe County, TN
Year designated: 1974
For additional information see:
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