Luis Hermosillo Villalobos, 25, disappeared on June 12, 1996, during a climbing expedition on Mount Saint Elias in Wrangell–St. Elias National Park and Preserve. At about 10,400 feet near Haydon Peak, the party was hit by a fierce storm and Luis, while clearing snow from the tent, was swept away by a sudden avalanche and separated from his four companions.

The other climbers dug out of the snow and recovered some gear, including a radio, but found no sign of Luis. None of the team carried transmitter/receiver beacons to help locate someone buried under the snow. Alaska State Troopers and park rangers later mounted search and rescue efforts, but ongoing high winds and unstable snow made searches extremely difficult.

Luis was never found. If anyone has information about that expedition or remembers seeing the team on Mount Saint Elias in June 1996, please share what you know.