There are 13 National Natural Landmarks in Tennessee.
| Name | Image | Date | Location | County | Ownership | Description |
|---|---|---|---|---|---|---|
| federal (Arnold Air Force Base) | Contains an extremely rare virgin swamp forest and a pristine example of an open marsh. | |||||
| 35.7726°N -85.557°W | state | Cave where giant ground sloth bones were discovered. | ||||
| 36.0737°N -86.3115°W | state (Cedars of Lebanon State Park) | The largest and best remaining example of the cedar glade community. | ||||
| private | One of the most spectacular and outstanding examples of a pit cave in the United States. | |||||
| 35.6692°N -85.6808°W | private | Two interconnecting caves at least 27miles in extent. | ||||
| 35.2278°N -85.9554°W | Franklin | private | A near virgin forest | |||
| 35.8568°N -84.9264°W | private | One of the nation's best illustrations of karst development and underground drainage | ||||
| 35.5356°N -84.4311°W | private | Cavern system that includes the largest known underground lake in the country. | ||||
| 35.4502°N -86.0223°W | state | Largest and best relict prairie remaining in Tennessee. | ||||
| private | Only known example in western Tennessee of the upland forests of the Mississippi Embayment | |||||
| state (Piney Falls State Natural Area) | Contains a rare virgin mixed mesophytic forest stand. | |||||
| 36.3889°N -89.3889°W | federal (Reelfoot National Wildlife Refuge) | Mosaic of habitats formed as a result of the New Madrid earthquake, | ||||
| 35.259°N -85.789°W | state (Savage Gulf State Natural Area) | A virgin forest. | ||||