List of National Natural Landmarks in Tennessee
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{{Use mdy dates|date=April 2025}}
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There are 13 National Natural Landmarks in Tennessee.
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{{Tennessee NNLs map}}
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! style="background-color:{{NNL color}}" | Name ! style="background-color:{{NNL color}}" class=unsortable | Image ! style="background-color:{{NNL color}}" | Date ! style="background-color:{{NNL color}}" | Location ! style="background-color:{{NNL color}}" | County ! style="background-color:{{NNL color}}" | Ownership ! style="background-color:{{NNL color}}" class=unsortable | Description |
| Arnold Engineering Development Center Natural Areas
| | {{dts|1974}} | | Coffee | federal (Arnold Air Force Base) | Contains an extremely rare virgin swamp forest and a pristine example of an open marsh. |
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| Big Bone Cave
| 100px | {{dts|1973}} |{{coord|35.7726 |
| 85.557|type:landmark|display=inline|name=Big Bone Cave}}
| state | Cave where giant ground sloth bones were discovered. |
| Cedar Glades
| 100 px | {{dts|1973}} |{{coord|36.07366 |
| 86.31151|type:landmark|display=inline|name=Cedars of Lebanon State Park}}
| Wilson | state (Cedars of Lebanon State Park) | The largest and best remaining example of the cedar glade community. |
| Conley Hole
| | {{dts|1973}} | | Grundy | private | One of the most spectacular and outstanding examples of a pit cave in the United States. |
| Cumberland Caverns
| 100 px | {{dts|1973}} |{{coord|35.669167 |
| 85.680833|type:landmark|display=inline|name=Cumberland Caverns}}
| Warren | private | Two interconnecting caves at least {{convert|27|mi|km}} in extent. |
| Dick Cove
| 100px | {{dts|1973}} |{{coord|35.227839 |
| 85.955392|type:landmark|display=inline|name=Dick Cove}}
| Franklin | private | A near virgin forest |
| Grassy Cove Karst Area
| 100 px | {{dts|1973}} |{{coord|35.856787 |
| 84.926373|type:landmark|display=inline|name=Grassy Cove}}
| private | One of the nation's best illustrations of karst development and underground drainage |
| The Lost Sea
| 100 px | {{dts|1974}} |{{coord|35.535556 |
| 84.431111|type:landmark|display=inline|name=Lost Sea}}
| Monroe | private | Cavern system that includes the largest known underground lake in the country. |
| May Prairie
| | {{dts|1974}} |{{coord|35.450232 |
| 86.022274|type:landmark|display=inline|name=May Prairie}}
| Coffee | state | Largest and best relict prairie remaining in Tennessee. |
| McAnulty's Woods
| | {{dts|1973}} | | Hardeman | private | Only known example in western Tennessee of the upland forests of the Mississippi Embayment |
| Piney Falls
| 100px | {{dts|1974}} | | Rhea | state (Piney Falls State Natural Area) | Contains a rare virgin mixed mesophytic forest stand. |
| Reelfoot Lake
| {{dts|1966}} |{{coord|36.388889 |
| 89.388889|type:landmark|display=inline|name=Reelfoot Lake}}
| federal (Reelfoot National Wildlife Refuge) | Mosaic of habitats formed as a result of the New Madrid earthquake, |
| Savage Gulf
| 100 px | {{dts|1971}} |{{coord|35.259 |
| 85.789|type:landmark|display=inline|name=Savage Gulf}}
| Grundy | state (Savage Gulf State Natural Area) | A virgin forest. |
See also
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