White Sands National Park is a national park of the United States located in New Mexico and completely surrounded by White Sands Missile Range. The park covers in the Tularosa Basin, including the southern 41% of a field of white sand dunes composed of gypsum crystals. This gypsum dunefield is the largest of its kind on Earth, with a depth of about , dunes as tall as , and about 4.5 billion short tons (4.1 billion metric tons) of gypsum sand.

Approximately 12,000 years ago, the land within the Tularosa Basin featured large lakes, streams, grasslands, and Ice Age mammals. As the climate warmed, rain and snowmelt dissolved gypsum from the surrounding mountains and carried it into the basin. Further warming and drying caused the lakes to evaporate and form selenite crystals. Strong winds then broke up crystals and transported them eastward. A similar process continues to produce gypsum sand today.

Thousands of species of animals inhabit the park, a large portion of which are invertebrates. Several animal species feature a white or off-white coloration. At least 45 species are endemic, living only in this park, with 40 of them being moth species. The Tularosa Basin has also seen a number of human inhabitants, from Paleo-Indians tens of millennia ago to modern farmers, ranchers, and miners.

White Sands National Park was originally designated White Sands National Monument on January 18, 1933, by President Herbert Hoover. Since 1941, the park has been surrounded by the military installations of White Sands Missile Range and Holloman Air Force Base. It was redesignated as a national park by Congress and signed into law by President Donald Trump on December 20, 2019. It is the most visited National Park Service site in New Mexico, with about 600,000 visitors each year. The park features a drive from the visitor center to the heart of the dunes, picnic areas, backcountry campground in the dunefield, marked hiking trails, and sledding on the dunes. Ranger-guided orientation and nature walks occur at various times and months throughout the year.

History

Native people

The potentially oldest known human footprints in North America were found at White Sands by researchers who identified approximately 60 fossilized footprints buried in layers of gypsum soil on a large playa in the Tularosa Basin. Multiple human footprints are stratigraphically constrained and bracketed by layers containing seeds of Ruppia cirrhosa that yield calibrated radiocarbon ages between 21,000 and 23,000 years ago, according to the U.S. Geological Survey. The present consensus for human arrival into North America is placed at 13–16,000 years ago. Initially, these estimates were questioned by other authors, who suggested that the dating could potentially be erroneus, due to the fact that Ruppia cirrhosa intakes carbon from the water in which it grows rather than the air, which may introduce systematic error making the seeds seem older than they actually are. However, the date was later supported by a variety of methods, including radiocarbon dating of pollen and optically stimulated luminescence dating of quartz grains within the footprint layers.Jeffrey S. Pigati et al. Independent age estimates resolve the controversy of ancient human footprints at White Sands. Science 382, 73–75 (2023). Other tracks are known for extinct megafauna, including ground sloths (likely either Nothrotheriops or Paramylodon) and Columbian mammoths, which appear to be contemporaneous to human footprints.Bennett, Matthew R. et al. (2020) «Walking in mud: Remarkable Pleistocene human trackways from White Sands National Park (New Mexico)». Quaternary Science Reviews 249: 106610.

Paleo-Indians inhabited the shoreline of Lake Otero, a large lake that covered much of the Tularosa Basin. They used stone from the mountains to create projectile points, known as Folsom and Plano points, and attached them to spears for hunting mammoths, camels, ground sloths, and bison. Projectile points and stone tools have been found in the basin associated with ancient shorelines, streams, and hills. As the large ice sheet that capped the North American continent receded, Lake Otero began to evaporate, leaving behind Alkali Flat and Lake Lucero. The grassland died, and the basin became increasingly arid, slowly changing into desert scrubland. The megafauna disappeared from the basin, leaving behind fossil footprints.

The Archaic people improved upon the hand-thrown spear used by Paleo-Indians with the invention of the atlatl. After Lake Otero dried out, wind carried large quantities of gypsum sand up from the basin floor, which accumulated into a large dunefield. Archaic people entered the Tularosa Basin about 4,000 years ago, after the dunes had stabilized, possibly attracted by a cereal grass called Indian ricegrass. The first evidence of agriculture is found in the Archaic period. Archaic peoples would tend to wild plants so they would produce in a more reliable manner and in larger quantities than they did naturally. Archaic people started living in small villages throughout the year to tend their fields. Hearth mounds are found within the dunes, which are the remains of prehistoric fires containing charcoal and ash. When gypsum is heated to it becomes a plaster that hardens when moisture is added and subsequently evaporates. The plaster cements these hearths in place, preserving them for thousands of years.

The Jornada Mogollon people made pottery, lived in permanent houses, and farmed the Tularosa Basin. Evidence of their prehistoric presence dates back to about 200 CE. The Jornada Mogollon inhabited the basin until about 1350 CE when they moved away, leaving behind puddled adobe structures and pottery sherds.

Over 700 years ago, bands of Apaches followed herds of bison from the Great Plains to the Tularosa Basin. The Apaches were nomadic hunters and gatherers who lived in temporary houses known as wickiups and teepees. The Apaches had established a sizable territory in southern New Mexico by the time European explorers arrived. They fiercely defended the rights to their homeland against the encroachment of colonial settlers. Apache groups, led by Victorio and Geronimo, fought with settlers in the basin and engaged in military battles with Buffalo Soldiers. The Battle of Hembrillo Basin in 1880 was a military engagement between Victorio's warriors and the United States Army's 9th Cavalry Regiment of Buffalo Soldiers. The battleground, located on White Sands Missile Range, is the closest archaeological evidence of the Apache Wars (1849 to 1924). Conflict between the Apaches and the American settlers over their conflicting interests in the basin ultimately ended in the forceful removal of the Apaches from their homelands to the Mescalero Apache Indian Reservation. The Mescalero Apache maintain an active cultural affinity to the landscape of their ancestors.

Euro-Americans While a Spanish colony was established to the north around Santa Fe, the Tularosa Basin was generally avoided until the nineteenth century. The basin lacked any reliable water sources and was the primary stronghold of local Apaches who stole livestock from Pueblo and Spanish settlements near the basin. When Spaniards did enter the basin, they traveled along established trails to the salt pan north of Alkali Flat. Spanish colonists had established the salt trails in 1647, to connect the salt deposits with the Camino Real in El Paso del Norte (present-day Ciudad Juárez) and silver mines in Durango, Mexico. Salt is a fundamental element in the processing of silver ore. Expeditionary parties using mule-drawn carts with military escorts would be formed a few times each year for the journey to the salinas (salt pans).

Hispanic populations throughout the Spanish colonial and Mexican periods were allowed to gather salt from the salinas, which were considered public property. Texan-American settlers made private claims to the land to profit from the mining of minerals on their property. James Magoffin held a title to the salt flats north of Lake Lucero but had been unsuccessful in collecting fees for salt gathering. In 1854, using military force, he intercepted a salt gathering expedition of Hispanos from Doña Ana at the salt flats and fatally wounded three members of the party. In response to Magoffin's use of extreme force during the Magoffin Salt War, the courts dissolved his property claim to the salt flats and established a precedent for free public access to salt deposits. The first U.S. Army exploration of south-central New Mexico was led by a party of topographical engineering officers in 1849. They passed west of the San Andres Mountains and Organ Mountains. A lieutenant was dispatched east across the basin with a scouting party to map a potential military wagon route to the Sierra Blanca.

Hispanic families started to farm communities at Tularosa in 1861 and La Luz in 1863. The villagers mixed water with gypsum sand from the dunefield to create plaster for the adobe walls of their homes. The white color was not only decorative but functional in deflecting the rays of the summer sun.

In the 1880s, a brief period of heavy rainfall supported the return of lush grasslands in the Tularosa Basin, which attracted the attention of goat, sheep, and cattle grazers, predominantly from Texas. Large cattle drives pushed into the basin, and ranching became the dominant economy for the next sixty years. In 1897, the Lucero brothers, Jose, Felipe, and Estevan, began ranching on the south shore of the lake that would eventually bear their name. By 1940, Felipe consolidated the family's ranches into a property. Shortly afterward, the National Park Service took over ownership of the Lucero family properties with their appropriation of Lake Lucero and Alkali Flat. The remnants of the Lucero family ranch include the stock pens, watering trough, a water well, and a fallen windmill, which visitors can see on a ranger-led tour to Lake Lucero once each month, in the cooler months of the year.

At the turn of the twentieth century, the discovery of oil, coal, silver, gold, and other precious mineral deposits inspired many settlers to cover the Tularosa Basin in mining claims. By 1904, over 114 people made mineral claims to more than of Lake Lucero; however, very few of the claims were developed. Eddy's Soda Prospect, developed by the same Eddy brothers who had founded the El Paso and Northeastern Railway and the town of Alamogordo, was a mineral recovery operation for glauberite salt mining along the southern shore of Lake Lucero. In 1907, J.R. Milner and Bill Fetz constructed a plaster of Paris batching plant along the southern edge of the dunes. The operation involved drilling long shafts into the dunes and extracting gypsum to cook into plaster at night. Though successful, the establishment of the national monument permanently shut down the plant.

National monument

The idea of creating a national park to protect the white sands formation dates to 1898, when a group from El Paso, Texas proposed the creation of Mescalero National Park. The plan failed as it included a game hunting preserve that conflicted with the idea of preservation held by the Department of the Interior.