There are 12 National Natural Landmarks in New Mexico.
Name Image Date Location County Ownership Description Border Hills Structural Zone Lincoln federal (Bureau of Land Management) A rare example of wrench faulting outside the Pacific Coast region. Bitter Lake Group Chaves federal (Bitter Lake National Wildlife Refuge) Saline artesian lakes that provide habitat for the only inland occurrence of a marine alga and two rare fish species. Bueyeros Shortgrass Plains Harding private An example of the blue grama-buffalograss prairie of the Great Plains. Fort Stanton Cave Lincoln federal (Fort Stanton – Snowy River Cave National Conservation Area) Cave containing distinctive examples of selenite needles, starbursts, and velvet flowstone. Grants Lava Flow Valencia federal (El Malpais National Conservation Area) & native (Acoma Pueblo) One of the best examples of recent extrusive volcanism. Ghost Ranch Rio Arriba private Fossil site where well-preserved Coelophysis skeletons were found. Kilbourne Hole Doña Ana federal (Bureau of Land Management) An example of an uncommon volcanic feature known as a maar. Mathers Research Natural Area Chaves federal (Bureau of Land Management) The best example of a shinnery oak-sand prairie community in the southern Great Plains. Mescalero Sands South Dune Chaves federal (Bureau of Land Management) The best example of an active sand dune system in the southern Great Plains. Ship Rock San Juan native (Navajo Nation) An outstanding example of an exposed volcanic neck accompanied by radiating dikes. Torgac Cave Lincoln federal (Bureau of Land Management) Cave with distinctive branching stalactites and helictites, the type site of Torgac-type helictites. Valles Caldera Rio Arriba, Sandoval federal (Valles Caldera National Preserve) One of the largest calderas in the world.
See also
List of National Historic Landmarks in New Mexico