From List of National Natural Landmarks, these are the National Natural Landmarks in Tennessee. There are 13 in total.
Tennessee National Natural Landmarks (clickable map)
| Name | Image | Date | Location | County | Ownership | Description | |
|---|---|---|---|---|---|---|---|
| 1 | Arnold Engineering Development Center Natural Areas | 1974 | Coffee | federal (Arnold Air Force Base) | Contains an extremely rare virgin swamp forest and a pristine example of an open marsh. | ||
| 2 | Big Bone Cave |  | 1973 | 35°46′21″N85°33′25″W / 35.7726°N 85.557°W | Van Buren | state | Cave where giant ground sloth bones were discovered. |
| 3 | Cedar Glades |  | 1973 | 36°04′25″N86°18′41″W / 36.07366°N 86.31151°W | Wilson | state (Cedars of Lebanon State Park) | The largest and best remaining example of the cedar glade community. |
| 4 | Conley Hole | 1973 | Grundy | private | One of the most spectacular and outstanding examples of a pit cave in the United States. | ||
| 5 | Cumberland Caverns |  | 1973 | 35°40′09″N85°40′51″W / 35.669167°N 85.680833°W | Warren | private | Two interconnecting caves at least 27 miles (43 km) in extent. |
| 6 | Dick Cove |  | 1973 | 35°13′40″N85°57′19″W / 35.227839°N 85.955392°W | Franklin | private | A near virgin forest |
| 7 | Grassy Cove Karst Area |  | 1973 | 35°51′24″N84°55′35″W / 35.856787°N 84.926373°W | Cumberland | private | One of the nation's best illustrations of karst development and underground drainage |
| 8 | The Lost Sea |  | 1974 | 35°32′08″N84°25′52″W / 35.535556°N 84.431111°W | Monroe | private | Cavern system that includes the largest known underground lake in the country. |
| 9 | May Prairie | 1974 | 35°27′01″N86°01′20″W / 35.450232°N 86.022274°W | Coffee | state | Largest and best relict prairie remaining in Tennessee. | |
| 10 | McAnulty's Woods | 1973 | Hardeman | private | Only known example in western Tennessee of the upland forests of the Mississippi Embayment | ||
| 11 | Piney Falls |  | 1974 | Rhea | state (Piney Falls State Natural Area) | Contains a rare virgin mixed mesophytic forest stand. | |
| 12 | Reelfoot Lake |  | 1966 | 36°23′20″N89°23′20″W / 36.388889°N 89.388889°W | Lake, Obion | federal (Reelfoot National Wildlife Refuge) | Mosaic of habitats formed as a result of the New Madrid earthquake, |
| 13 | Savage Gulf |  | 1971 | 35°15′32″N85°47′20″W / 35.259°N 85.789°W | Grundy | state (Savage Gulf State Natural Area) | A virgin forest. |