In January 1959, 22-year-old Dyatlov, a fifth-year student in the Radio Technology Department of the Sverdlovsk State Technical Institute in the Soviet Union, initiated a voluntary skiing activity in the North Ural Mountains. Soon nine like-minded people signed up, the youngest of whom was a 21-year-old girl from the Department of Architecture, and the eldest was a 38-year-old graduate of the Institute of Physical Education. 　　Soon, the Dyatlov College Alpine Ski Team was established, and Dyatlov appointed himself as captain. Before setting off, the college students underwent rigorous skiing, long-distance weight-bearing treks, and training in dealing with natural disasters and climates. On January 23, they set off from Sverdlovsk, the…