Over 275 sq mi of pure white gypsum sand create a surreal, lunar landscape.
The sand consists of gypsum crystals formed by evaporating mineral‑rich groundwater.
Winds move dunes up to 30 ft per year; heights range from a few feet to over 60 ft.
Endemic plants like dune sagebrush and animals such as the bleached earless lizard thrive here.
Designated a National Monument in 1933, upgraded to National Park in 2019.
Minimal light pollution makes it a premier stargazing destination.
Apache and other Native peoples have inhabited the area for millennia; numerous archaeological sites exist.
Hiking, dune sledding, camping, backcountry exploring, and ranger‑led programs are popular.