Dyatlov Pass incident

The expedition was scheduled to begin on January 23, 1959.

An excerpt from the article 39 facts about Dyatlov Pass incident

In addition to the desire to conquer one of the most difficult mountain routes, the expedition also had as its intention to honor the participants of the 21st Congress of the Communist Party of the Soviet Union. The congress was held in Moscow on January 27-February 5.

The expedition's route was approximately 300 kilometers and was to last for 18 days. On February 12, the hikers planned to send a telegram from the village of Vizhai informing them of the conquest, but this never happened.