David and Ornella Steiner Died August 4, 2015, White Sands National Monument, New Mexico

Revised July 2024

David and Ornella Steiner were on vacation with their nine-year-old son when they stopped at southern New Mexico’s White Sands National Monument just after midday on August 4th, 2015. They set out to hike the Alkali Flat Trail, one of the monument’s more difficult trails. The family were French nationals from the famous wine area of Burgundy.

Tragically, the Steiner’s never made it out of White Sands that day.

What is White Sands National Monument?

White Sands is a National Monument located in New Mexico on the north side of Route 70, about 16 miles (26 km) southwest of Alamogordo in western Otero County and northeastern Doña Ana County. The monument is situated at an elevation of 4,235 feet (1,291 m) in the mountain-ringed Tularosa Basin and comprises the southern part of a 275 sq mi (710 km2) field of white dunes composed of gypsum crystals. The gypsum dune field is the largest of its kind on Earth. The monument has featured in a variety of Western films, including Four Faces West (1949), Hang 'Em High (1967), The Hired Hand(1971), My Name Is Nobody (1973), Bite the Bullett (1975) and Young Guns II (1990).

The Steiner hike on the Alkali Flat Trail

The Alkali Flat Trail on which the Steiners set out is a five-mile loop that ascends and descends many times, making it a tough and strenuous task. The trail is marked only by posts staked deep in the gypsum sand.  On the Monument website, the Park Service warns visitors that heat-related illness is common in warm weather and can be fatal. It advises people to hike during cool times. “Carry food and at least two quarts of water. Rest, eat and drink when tired. Drinking water is available only at the Visitor Center. The white sand reflects sunlight. Protect all exposed skin from sunburn. Protect your eyes by wearing sunglasses. We recommend that you do not hike alone."

According to the National Park Service, which manages the monument, and the Otero County Sheriff’s Office, which managed the subsequent investigation, the Steiners headed into the dunes without adequate water and quickly succumbed to the extreme heat. There is virtually no shade or shelter from the blazing sun and soaring temperatures. Daytime temperatures peaked at 101 degrees on August 4th, 2015.

Sheriff Benny House said Ornella Steiner, 51, began feeling ill on the trail and decided to turn back to the family’s vehicle but collapsed after only a few hundred yards while David, 42, and his son pressed on. Park rangers found the body of Ornella around 5.30 p.m. during a routine patrol of the Trail.

Looking at Ornella’s camera for clues, rangers saw photos of a man and boy at the park's entrance. They were unaccounted for, so deputies extended their search. They found the father and son about 45 minutes later, slightly off the trail. David Steiner, 42, was dead, whilst the boy was still alive but suffering heat exposure. House said that the couple carried only two small bottles of water but had taken only one sip for every two they gave their son. After four and a half hours, they had run out of water. 

What happened to the Steiner family?

Sheriff House said, “I don’t think they were prepared for the heat. I think they just thought it was a trail, and they would walk it. They started out together. The mother had gotten ill. … It wasn’t very far before she went down, and then, farther up the trail, the father went down. It’s just a tragedy.”

The boy was quickly taken to a hospital, and the New Mexico Children, Youth and Families Department took custody and returned him to France to his grandmother.

It is believed that the Steiners died from heat exposure. It is a case of serious misadventure in the harshest of environments and another sad story from U.S. deserts. Never take the desert for granted! Always go prepared with too much water, just in case.