Category: On the Cover
White Sands National Park, New Mexico
In the middle of the Tularosa Basin sits the world’s largest gypsum sand dune field, covering over 275 square miles of desert in New Mexico. Gypsum, a soft mineral left behind when water evaporates, rarely appears as sand. However, about 12,000 years ago, as the climate warmed, rain and snowmelt washed gypsum from the surrounding