white sands national park with yucca and dunes along alkali flats trail in evening light, alamogordo, new mexico

southwestern environment alamogordo structures structure protected landscape dunefield southwest national southern outdoors survival striking sunshine pristine monument american evening ripples america natural outdoor scenery western alkali mexico brings desert gypsum nature hiking plants yuccas shadow united states white sands yucca dunes flats trail light early heart field plant north crest harsh sandy windy park sand dune USA