More than 610 acres of towering 90+ foot sand dunes await your enjoyment in the Mescalero Sands North Dune Off-Highway Vehicle (OHV) Area. The dune field stretches over most of the area and lends itself well to all terrain cycles, sand rails and dune buggies. The dunes are made up of quartz particles and are constantly changing due to the prevailing southwest wind. When the dunes are active, they move about a foot per year.