White Sands National Monument in south–central New Mexico is unique in many ways, but, by far, the most striking difference from the surrounding landscape is the sand from which the monument gets its name. It is actually gypsum that has washed down from the nearby San Andres Mountains. The gypsum, mixed with water flows on to a large playa (seasonal lake). As the water evaporates, the gypsum sand is left behind, and is then carried by the wind to become part of the dune field.
The White Sands dune field covers approximately 275 square miles of New Mexico’s Tularosa Basin. A little over half of it is part of White Sands Missle Range; the remainder (approx. 115 square miles) comprises the monument. It is an amazing place where the vegetation, and the wildlife cling to life by the most tenuous of threads.
In the summer, daytime temperatures can reach over 100° F., and in the winter, they can plunge to below freezing. If you plan to visit, be sure to come prepared for any kind of weather, and carry plenty of water.
No matter what time of year you visit White Sands, you will be treated to an amazing landscape, and the opportunity to find solitude in the dunes.