In 1959, nine experienced hikers died in Russia's Ural Mountains. Their tent was cut open from inside, and some were found barefoot in the snow, a few with severe injuries. A 2021 study suggested a small slab avalanche. Others are not convinced.
Truth label: Debated. Serious people disagree. You get both sides.
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The avalanche theory
Snow cut into the slope above the tent may have slid at night, forcing them out in panic.
Other theories
Theories have included military tests, infrasound and attacks. None is proven.
Learn
- Official verdicts. Soviet investigators blamed 'a compelling natural force'. Russia reopened the case in 2019 and pointed to an avalanche.
Test yourself
How was the tent opened?
Cut from inside. It was cut open from the inside.
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