Stock photography, photos: White Sands - New Mexico, USA Stock photos of White Sands National Monument (National Park). Great wave-like dunes of gypsum sand have engulfed 275 square miles of desert and have created the world's largest gypsum dune field. The brilliant white dunes are ever changing: growing, cresting, then slumping, but always advancing. Slowly but relentlessly the sand, driven by strong southwest winds, covers everything in its path. New Mexico, USA. Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: southwest, usa, west, western, landscape, landscapes, desert, white sands, new mexico, gypsum, blue