List of National Natural Landmarks in Texas

! 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

| 100 px

| {{dts|1968}}

| {{coord|29.668827|N|96.266751|W|format=dms|display=inline|name=Attwater Prairie Chicken Preserve}}

| Colorado

| federal/US Fish & Wildlife Service

| Contains the only significant segment of gulf coastal prairie.

|

| {{dts|1980}}

| {{coord|26.229081|N|97.347231|W|format=dms|display=inline|name=Bayside Resaca Area}}

| Cameron

| federal/US Fish & Wildlife Service

| Located in Laguna Atascosa National Wildlife Refuge, contains an excellent example of a resaca.

|

| {{dts|1983}}

| {{coord|31|54|27|N|95|54|09|W

| Anderson

| state/Texas Department of Parks and Wildlife

| One of the few remaining undisturbed riparian habitats in the western Gulf Coastal Plain

| 100px

| {{dts|1965}}

| {{coord|30|33|18|N|100|48|44|W|display=inline|name=Caverns of Sonora}}

| Sutton

| private

| Contains unusual formations, such as bladed helictites and coralloid growths

|

| {{dts|1972}}

| {{coord|30.015773|N|100.208552|W|format=dms|display=inline|name=Devil's Sinkhole}}

| Edwards

| state/Texas Department of Parks and Wildlife

| A deep, bell-shaped, collapsed limestone sink.

| File:DinosaurValleyStatePark015.JPG

| {{dts|1968}}

| {{coord|32.246194|N|97.813375|W|format=dms|display=inline|name=Dinosaur Valley State Park}}

| Somervell

| state/Texas Department of Parks and Wildlife

| The only known source of distinct and full-grown sauropod footprints.

|

| {{dts|1971}}

|

| Hays

| private

| Houses at least 36 species of cave fauna.

| File:Enchanted rock 2006.jpg

| {{dts|1971}}

| {{coord|30.496033|N|98.819952|W|format=dms|display=inline|name=Enchanted Rock}}

| Gillespie, Llano

| state/Texas Department of Parks and Wildlife

| A classic illustration of a batholith and of the exfoliation process.

|

| {{dts|1980}}

| {{coord|32.843450|N|97.477225|W|format=dms|display=inline|name=Fort Worth Nature Center and Refuge}}

| Tarrant

| municipal/City of Fort Worth

| Contains outstanding examples of the unique oak-hickory forest associations called cross timbers.

|

| {{dts|1975}}

|

| Montague

| private

| A rich source of early Cretaceous mammalian fossils.

| File:Buffalo Lake Texas Dam 2009.jpg

| {{dts|1980}}

| {{coord|34.919517|N|102.111118|W|format=dms|display=inline|name=High Plains Natural Area}}

| Randall

| federal/US Fish & Wildlife Service

| One of the best developed, least disturbed natural shortgrass climax communities remaining in the Great Plains. Part of Buffalo Lake National Wildlife Refuge.

|

|2024

|

|Terrell

|private

|{{Cite web |title=Southern Texas Desert Oasis (U.S. National Park Service) |url=https://www.nps.gov/articles/000/southern-texas-desert-oasis.htm |access-date=2024-10-04 |website=www.nps.gov |language=en}}{{Cite web |title=Independence Creek Preserve |url=https://www.nps.gov/subjects/nnlandmarks/site.htm?Site=INCR-TX |access-date=2024-10-04 |website=www.nps.gov |language=en}}

|

| {{dts|1982}}

|

| Blanco

| private

| An unspoiled example of the limestone bluff communities of the Edwards Plateau.

| File:Longhorn cavern entrance.jpg

| {{dts|1971}}

| {{coord|30.684441|N|98.350970|W|format=dms|display=inline|name=Longhorn Cavern}}

| Burnet

| state/Texas Department of Parks and Wildlife

| State park contains an outstanding example of cave features formed during the phreatic phase of development.

| File:Lost Maples State Natural Area, Edwards Plateau, Texas, United States.jpg

| {{dts|1980}}

| {{coord|29.807719|N|99.570697|W|format=dms|display=inline|name=Lost Maples State Natural Area}}

| Bandera, Real

| state/Texas Department of Parks and Wildlife

| An excellent illustration of Edwards Plateau flora and fauna.

| File:SandhillCranesMuleshoeNWR.jpg

| {{dts|1980}}

| {{coord|33.955295|N|102.776973|W|format=dms|display=inline|name=Muleshoe National Wildlife Refuge}}

| Bailey

| federal/US Fish & Wildlife Service

| Saline lake beds, and shortgrass grama grasslands characteristic of the high plains.

| File:Odessa Meteor Crater Museum 2009.jpg

| {{dts|1965}}

| {{coord|31.756998|N|102.479125|W|format=dms|display=inline|name=Odessa Meteor Crater}}

| Ector

| county

| Contains two meteorite impact craters. The largest is {{convert|550|ft|m}} in diameter.

| File:Palodurolighthouse.jpg

| {{dts|1976}}

| {{coord|34.984709|N|101.701867|W|format=dms|display=inline|name=Palo Duro Canyon State Park}}

| Armstrong, Randall

| state/Texas Department of Parks and Wildlife

| Spectacular canyon that is an excellent example of a landform created by running water.

| File:Gallinula galeata and Anas discors Santa Ana NWR.jpg

| {{dts|1966}}

| {{coord|26.08522|N|98.13448|W|format=dms|display=inline|name=Santa Ana National Wildlife Refuge}}

| Hidalgo

| federal/US Fish & Wildlife Service

| A living museum of the lowland forested area of the Lower Rio Grande Valley.

| File:NaturalBridgeCaverns11.jpg

| {{dts|1971}}

| {{coord|29.692351|N|98.342760|W|format=dms|display=inline|name=Natural Bridge Caverns}}

| Comal

| private

| A multilevel cavern system containing unusual speleothems and intricate helictites.

| File:Queen's throne.JPG

| {{dts|2009}}

| {{coord|29.8791769|N|98.6419260|W|format=dms|display=inline|name=Cave Without a Name}}

| Kendall

| private

| Contains rare and nationally outstanding examples of speleothems.