Southern New Mexico has a white desert so vast, it makes the Sahara look overdressed

It’s the world’s largest gypsum dune field

White Sands National Park sits in southern New Mexico’s Tularosa Basin, and the first thing you notice is the silence. Then the white.

Rolling dunes stretch to the horizon, 275 square miles of gypsum sand that covers more ground than any other gypsum dune field on Earth. The next largest one, down in Mexico, is only about eight square miles.

Some of these dunes climb 60 feet high. And unlike regular sand, gypsum reflects sunlight and stays cool, so you can kick off your shoes and walk barefoot even on a warm day.

The place feels more like another planet than a desert.

An ancient sea left all this white sand behind

About 280 million years ago, a shallow sea sat right here and left behind thick layers of gypsum.

Tectonic forces shaped the land into the Tularosa Basin over millions of years, and because the basin has no outlet to the ocean, it traps everything.

Rain and snowmelt wash gypsum off the surrounding mountains and carry it down into a seasonal lake called Lake Lucero.

The water evaporates, leaves gypsum crystals behind, and the wind grinds them into fine white grains and pushes them northeast. The most active dunes move up to 30 feet a year.

Drive 16 miles straight into the dune field

Dunes Drive runs 16 miles round trip from the edge of the park into the heart of the white sand.

The first five miles are paved, and then the road turns to packed gypsum that weaves between dunes taller than your car.

Pullouts and shaded picnic areas line the route, so you can stop whenever something catches your eye. Without stops, the drive takes about 45 minutes, but most people spend a lot longer out there.

Go at sunrise or sunset, when the white sand glows gold, pink and purple all at once.

Grab a sled and slide down gypsum dunes

You can buy a round, wax-coated saucer sled at the visitor center gift shop for about $25, and then head out to the slopes along Dunes Drive near the Dune Life Nature Trail area.

The dunes there are smooth and steep enough for a good ride.

Gypsum is not as slippery as snow, so your first few runs might feel slow until you get the hang of it.

Families with kids of all ages line up for this one, and it is probably the most popular thing people do in the park.

Four trails cross the dunes right now

The park keeps five established trails, but one of them, the Interdune Boardwalk, is closed right now due to a safety corridor. That still leaves you four options.

The Playa Trail is an easy half-mile walk to a dry lakebed that shifts with the seasons.

The Dune Life Nature Trail loops one mile along the edge of the dune field with signs about the plants and animals living here.

The Backcountry Camping Trail runs two miles through large dunes with wide-open views, and the Alkali Flat Trail pushes 4.5 to five miles through the biggest dunes to an ancient dry lakebed.

The Alkali Flat Trail goes deep into the sand

If you want the full experience, the Alkali Flat Trail takes you where few footprints mark the sand. You climb up and over dozens of dunes, some 60 feet tall, gaining about 700 feet of elevation over the loop.

Red diamond-shaped markers guide the way, and you should always keep the next one in sight. Halfway through, you reach the Alkali Flat, what remains of ancient Lake Otero.

Warning signs remind you not to wander off trail because unexploded military ordnance sits beneath the surface nearby. Carry at least a gallon of water per person and start early.

At least 45 species live here and nowhere else

Thousands of years in white sand changed the animals here.

The bleached earless lizard is nearly invisible against the gypsum, and you can only spot it by the tiny black dots on its head.

The Apache pocket mouse has white fur and never drinks water in its life, pulling all its moisture from seeds. Sand wolf spiders and camel crickets have gone pale too.

At least 45 species exist only at White Sands and nowhere else on Earth, including about 40 species of moth. The park holds more than 800 animal species in all, and most come out at night.

23,000-year-old footprints rewrote American history

White Sands holds the world’s largest collection of fossilized ice age footprints, and some of them changed what scientists thought they knew.

Human footprints found here date to between 21,000 and 23,000 years ago, making them the oldest known human footprints in North America.

The discovery, first reported in 2021 and confirmed in 2023, pushed the timeline of human arrival in the Americas back by thousands of years.

Tracks from mammoths, giant ground sloths, dire wolves and saber-toothed cats turned up too.

In 2018, researchers found a nearly mile-long trackway showing what appears to be a woman or young person carrying a child.

Watch the sand turn gold and purple at sunset

As the sun drops, the white dunes cycle through gold, pink, orange and purple.

Rangers lead free Sunset Strolls, one-mile walks timed so you end up standing on top of a dune right as the sun goes down.

From March through November, the park also runs ranger-guided Full Moon Hikes on the Dune Life Nature Trail. On select full moon nights, the park stays open late and hosts live music and special programs.

Full Moon Hikes need advance registration, and they sell out fast, so plan ahead if you want a spot.

The 1938 visitor center and the lake that feeds the dunes

The visitor center dates to 1938, built in the Pueblo-Revival style, and it holds exhibits on the park’s geology, plants and wildlife.

A 17-minute film plays every half hour, and the gift shop sells sleds, books and souvenirs.

Rangers lead occasional guided tours to Lake Lucero, the seasonal playa lake where gypsum crystals form before the wind turns them into white sand.

Beyond the visitor center, you will not find restaurants, gas stations or water refill stations inside the park. Bring food, water and a full tank of gas before you drive in.

No cell service and the road can close without warning

The park stays open daily year-round except Christmas Day, with hours that shift by season, opening at 7 a.m. and closing between 6 p.m. in winter and 9 p.m. in summer. Entrance costs $25 per vehicle and covers seven days.

Because White Sands Missile Range completely surrounds the park, Highway 70 and the park itself can shut down without advance notice for military testing. Check the official website before you make the drive.

The white sand throws serious glare, so bring sunglasses. There is no cell service inside the park, and pets are welcome on all trails but need a leash.

Every visit looks different because the dunes never stop moving

White Sands sits about 15 miles west of Alamogordo and roughly 52 miles east of Las Cruces on Highway 70. The closest major airport is El Paso International, about 85 miles southwest.

Early morning and late afternoon give you the best light for photos, and the park is one of the most photographed in the country for good reason.

Whether you come for an afternoon of sledding or a full day of hiking and sunset watching, the landscape stays with you. The dunes shift and reshape with every wind, so no two visits look the same.

Visit White Sands National Park in New Mexico

You can find the park at 19955 US Highway 70 in Alamogordo, N.M. It stays open daily year-round except Christmas Day, and entrance runs $25 per vehicle for seven days. The America the Beautiful annual pass, $80, works here too.

Check the official website for current hours, closures and ranger program schedules. If you plan to hike, bring at least one gallon of water per person, sunscreen, sunglasses and closed-toe shoes.

Fill up your gas tank before you arrive because there are no stations inside the park.

This article was created with AI assistance and human editing.

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