The Dyatlov Pass incident refers to an event that resulted in the deaths of nine ski hikers in the northern Ural mountains on the night of February 2, 1959. It happened on the east shoulder of the mountain Kholat Syakhl (a Mansi name, meaning Mountain of the Dead). The mountain pass where the incident occurred has since been named Dyatlov Pass (Перевал Дятлова) after the group's leader, Igor Dyatlov. The lack of eyewitnesses has inspired much speculation. Soviet investigators determined only that "a compelling unknown force" had caused the deaths. Access to the area was barred for skiers and other adventurers for three years after the incident. The chronology of the incident remains unclear due to the lack of survivors.
Investigators at the time determined that the hikers tore open their tent from within, departing barefoot in heavy snow. Though the corpses showed no signs of struggle, two victims had fractured skulls, two had broken ribs, and one was missing her tongue. According to sources, four of the victims' clothing contained substantial levels of radiation. There is no mention of this in contemporary documentation; it only appears in later documents.
The bodies turned orange, some of the faces appeared to have aged substantially accompanied by graying of the hair. The victims had only internal trauma damage, with no outside damage. Whatever these hikers saw, it was scary enough for them to cut open their tent and run for their lives without snow gear. Pretty creepy. There had been sightings of strange orange orbs on the night of the deaths.
Soviet investigators determined only that "a compelling unknown force" had caused the deaths. What do YOU think happened to these hikers?
Source: http://en.wikipedia.org/wiki/Dyatlov_Pass_incident