Entry Title: "White Sands National Monument, New Mexico"
Name: Joseph Romeo , United States
Category and Expertise: Nature, Professional
Entry Description: White Sands National Monument, New Mexico. The area is in the mountain-ringed Tularosa Basin and comprises the southern part of a 275 square miles field of white sand dunes composed of gypsum crystals. It is the largest gypsum dune field in the world.