List of National Natural Landmarks in Texas

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