The Dyatlov Pass Incident

On the night of February 1–2, 1959, nine Soviet ski hikers died under mysterious circumstances on the eastern slopes of Kholat Syakhl in the Ural Mountains. Searchers found the tent had been torn open from the inside and hikers had fled into sub-zero temperatures without adequate clothing. Six died of hypothermia while three showed severe physical trauma — crushed ribs and a fractured skull — without external wounds, injuries consistent with extreme pressure rather than blunt force. A 2019 Russian investigation attributed the deaths to an avalanche, though many researchers consider the avalanche theory incomplete.