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	Ownership	Description
1	Attwater Prairie Chicken Preserve		1968		Colorado	federal/US Fish & Wildlife Service	Contains the only significant segment of gulf coastal prairie.
2	Bayside Resaca Area		1980		Cameron	federal/US Fish & Wildlife Service	Located in Laguna Atascosa National Wildlife Refuge, contains an excellent example of a resaca.
3	Catfish Creek		1983		Anderson	state/Texas Department of Parks and Wildlife	One of the few remaining undisturbed riparian habitats in the western Gulf Coastal Plain
4	Caverns of Sonora		1965		Sutton	private	Contains unusual formations, such as bladed helictites and coralloid growths
5	Devil's Sinkhole		1972		Edwards	state/Texas Department of Parks and Wildlife	A deep, bell-shaped, collapsed limestone sink.
6	Dinosaur Valley State Park		1968		Somervell	state/Texas Department of Parks and Wildlife	The only known source of distinct and full-grown sauropod footprints.
7	Ezell's Cave		1971		Hays	private	Houses at least 36 species of cave fauna.
8	Enchanted Rock		1971		Gillespie, Llano	state/Texas Department of Parks and Wildlife	A classic illustration of a batholith and of the exfoliation process.
9	Fort Worth Nature Center and Refuge		1980		Tarrant	municipal/City of Fort Worth	Contains outstanding examples of the unique oak-hickory forest associations called cross timbers.
10	Greenwood Canyon		1975		Montague	private	A rich source of early Cretaceous mammalian fossils.
11	High Plains Natural Area		1980		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.
12	Little Blanco River Bluff		1982		Blanco	private	An unspoiled example of the limestone bluff communities of the Edwards Plateau.
13	Longhorn Cavern		1971		Burnet	state/Texas Department of Parks and Wildlife	State park contains an outstanding example of cave features formed during the phreatic phase of development.
14	Lost Maples State Natural Area		1980		Bandera, Real	state/Texas Department of Parks and Wildlife	An excellent illustration of Edwards Plateau flora and fauna.
15	Muleshoe National Wildlife Refuge		1980		Bailey	federal/US Fish & Wildlife Service	Saline lake beds, and shortgrass grama grasslands characteristic of the high plains.
16	Odessa Meteor Crater		1965		Ector	county	Contains two meteorite impact craters. The largest is 550 feet (170 m) in diameter.
17	Palo Duro Canyon State Park		1976		Armstrong, Randall	state/Texas Department of Parks and Wildlife	Spectacular canyon that is an excellent example of a landform created by running water.
18	Santa Ana National Wildlife Refuge		1966		Hidalgo	federal/US Fish & Wildlife Service	A living museum of the lowland forested area of the Lower Rio Grande Valley.
19	Natural Bridge Caverns		1971		Comal	private	A multilevel cavern system containing unusual speleothems and intricate helictites.
20	Cave Without a Name		2009		Kendall	private	Contains rare and nationally outstanding examples of speleothems.