List of National Natural Landmarks in Texas

From List of National Natural Landmarks, these are the National Natural Landmarks in Texas. There are 20 in total.

	Name	Image	Date	Location	County	Description
1	Attwater Prairie Chicken Preserve		01968-01-01-00001968		Colorado	Contains the only significant segment of gulf coastal prairie.
2	Bayside Resaca Area		01980-01-01-00001980		Cameron	Contains an excellent example of a resaca.
3	Catfish Creek (Texas)		01983-01-01-00001983		Anderson	One of the few remaining undisturbed riparian habitats in the western Gulf Coastal Plain
4	Caverns of Sonora		01965-01-01-00001965		Sutton	Contains unusual formations, such as bladed helictites and coralloid growths
5	Devil's Sinkhole		01972-01-01-00001972		Edwards	A deep, bell-shaped, collapsed limestone sink.
6	Dinosaur Valley		01968-01-01-00001968		Somervell	The only known source of distinct and full-grown sauropod footprints.
7	Ezell's Cave		01971-01-01-00001971		Hays	Houses at least 36 species of cave fauna.
8	Enchanted Rock		01971-01-01-00001971		Gillespie, Llano	A classic illustration of a batholith and of the exfoliation process.
9	Fort Worth Nature Center and Refuge		01980-01-01-00001980		Tarrant	Contains outstanding examples of the unique oak-hickory forest associations called cross timbers.
10	Greenwood Canyon		01975-01-01-00001975		Montague	A rich source of early Cretaceous mammalian fossils.
11	High Plains Natural Area		01980-01-01-00001980		Randall	One of the best developed, least disturbed natural shortgrass climax communities remaining in the Great Plains.
12	Little Blanco River Bluff		01982-01-01-00001982		Blanco	An unspoiled example of the limestone bluff communities of the Edwards Plateau.
13	Longhorn Cavern		01971-01-01-00001971		Burnet	An outstanding example of cave features formed during the phreatic phase of development.
14	Lost Maples State Natural Area		01980-01-01-00001980		Bandera, Real	An excellent illustration of Edwards Plateau flora and fauna.
15	Muleshoe National Wildlife Refuge		01980-01-01-00001980		Bailey	Saline lake beds, and shortgrass grama grasslands characteristic of the high plains.
16	Odessa Meteor Crater		01965-01-01-00001965		Ector	Contains two meteorite impact craters. The largest is 550 feet (170 m) in diameter.
17	Palo Duro Canyon State Park		01976-01-01-00001976		Armstrong, Randall	Spectacular canyon that is an excellent example of a landform created by running water.
18	Santa Ana National Wildlife Refuge		01966-01-01-00001966		Hidalgo	A living museum of the lowland forested area of the Lower Rio Grande Valley.
19	Natural Bridge Caverns		01971-01-01-00001971		Comal	A multilevel cavern system containing unusual speleothems and intricate helictites.
20	Cave Without a Name		02009-01-01-00002009		Kendall	Contains rare and nationally outstanding examples of speleothems.