;Apache, Spanish, and U.S. 'Old West' When the Spanish arrived in the Tularosa Basin, they found springs and small streams coming from the Sacramento Mountains that fed a relatively lush grassland on the eastern side of the basin. While the Spanish tried some sheep ranching and some mining, the area remained firmly under Apache control until the 1850s, when the United States established its military presence at Fort Stanton , Torreon Fort , and Camp Comfort at White Sands. Under US military protection, the first permanent settlement was established in 1862, when about 50 Hispanic farmers from the Rio Grande Valley moved to Tularosa. Efforts to control the Apache waned somewhat during the American Civil War and serious American settlement did not begin until the late 1870s, when settlers and cattle ranchers from Texas began moving into the basin. s. ;Grasslands and grazing The native grasslands in the Tularosa Basin were able to support large herds in the wet years of the 1880s. When the Americans first started running cattle, in some places, the :Category:Bunchgrasses of North America|native perennial bunchgrasses grew 'as high as a horse’s shoulder' - depending on species. One cowhand estimated in 1889 that 85,000 head were mustered within the basin, but said that was “far too heavy a burden for the range” - or beyond its carrying capacity. Severe drought followed for years, and the grassland pastures never recovered from the overgrazing, which continued in many instances for 75 years or more and caused top-soil erosion and desertification. Even within the White Sands Missile Range, where cattle grazing was eliminated in 1945, the effects from the 1890 -1945 period of overgrazing can still be seen nearly everywhere. Many areas that were historically known to be rich perennial grasslands are now xeric desert shrublands, with creosote bush— predominating. ;Groundwater salinization Since surface water was unable to sustain the cattle herds, ranchers turned to groundwater, and the easily reachable aquifer of 'sweet water' was pumped out and depleted from under the basin, leaving only brackish water. Applying the groundwater to the surface resulted in additional salts being dissolved and transported back down by groundwater recharge into the aquifer, increasing its salinity. By 2000, it became clear that salts in the aquifer needed to be significantly reduced if existing levels of water use were to continue. Therefore, in 2004, the Tularosa Basin National Desalination Research Facility was established in the basin at Alamogordo, as a joint project of the Federal Bureau of Reclamation and Sandia National Laboratories. It is a national center for researching procedures to reduce brackish water creation and to develop new technologies for desalination as it is increasingly found in present-day inland basin aquifers with agricultural irrigation and potable water withdrawal demands.
Ecology
The Tularosa Basin is in the Chihuahuan Desertecoregion, with the former Great Plains grassland habitat ecotones. Because of the closed nature of the basin, a number of unique ecological niches have developed. A significant number of endemic species are only found in the Tularosa Basin. These include the White Sands pupfish and the Oscura Mountains chipmunk.
