Because gypsum ... sand. The entire dune field is a massive 275 square miles (by comparison, the second-largest gypsum dune field in the world, Cuatro Ciénegas in Mexico, is only 8 square miles).

Learn about the tracks and footprints at White Sands National Park in New Mexico, possibly representing the earliest evidence ...

Because gypsum ... sand. The entire dune field is a massive 275 square miles (by comparison, the second-largest gypsum dune field in the world, Cuatro Ciénegas in Mexico, is only 8 square miles).

A national monument until 2019, White Sands National Park is home to the largest gypsum dune field in the ... once underwater of the 1,600-square-mile Lake Otero, which dried up 10,000 years ...

White Sands, the world’s largest gypsum sand dune field, may be elevated from a national monument to a national park under legislation proposed Friday by New Mexico Democratic Sen. Martin Heinrich.

There are several National Park Service sites that do something that very few places on earth can do. They stop you righ ...