There are 13 National Natural Landmarks in Tennessee.
Name Image Date Location County Ownership Description Arnold Engineering Development Center Natural Areas Coffee federal (Arnold Air Force Base) Contains an extremely rare virgin swamp forest and a pristine example of an open marsh. Big Bone Cave Van Buren state Cave where giant ground sloth bones were discovered. Cedar Glades Wilson state (Cedars of Lebanon State Park) The largest and best remaining example of the cedar glade community. Conley Hole Grundy private One of the most spectacular and outstanding examples of a pit cave in the United States. Cumberland Caverns Warren private Two interconnecting caves at least in extent. Dick Cove Franklin private A near virgin forest Grassy Cove Karst Area Cumberland private One of the nation's best illustrations of karst development and underground drainage The Lost Sea Monroe private Cavern system that includes the largest known underground lake in the country. May Prairie Coffee state Largest and best relict prairie remaining in Tennessee. McAnulty's Woods Hardeman private Only known example in western Tennessee of the upland forests of the Mississippi Embayment Piney Falls Rhea state (Piney Falls State Natural Area) Contains a rare virgin mixed mesophytic forest stand. Reelfoot Lake Lake, Obion federal (Reelfoot National Wildlife Refuge) Mosaic of habitats formed as a result of the New Madrid earthquake, Savage Gulf Grundy state (Savage Gulf State Natural Area) A virgin forest.
See also
List of National Historic Landmarks in Tennessee