Rising from the heart of the Tularosa Basin is one of the world's great natural wonders - the glistening white sands of New Mexico. Here, dunes have engulfed 275 square miles of desert creating the world's largest gypsum dunefield. White Sands National Monument preserves this dunefield, along with the plants and animals that have adapted to this constantly changing environment.
Unlike dunes made of quartz-based sand crystals, the gypsum does not readily convert the sun's energy into heat and thus can be walked upon safely with bare feet, even in the hottest summer months. In areas accessible by car, children frequently use the dunes for downhill sledding. Because the park lies completely within the White Sands Missile Range, both the park and U.S. Route 70 between Las Cruces, New Mexico and Alamogordo are subject to closure for safety reasons when tests are conducted on the missile range. On average, tests occur about twice a week, for a duration of one to two hours. Located on the northernmost boundaries of White Sands Missile Range, the Trinity Site can be found, where the first atom bomb was detonated. Fun fact: Three species of lizards, one pocket mouse and numerous species of insects have evolved a white coloration for survival in the white sands.