1958 summer hiking and water trek category respectively III and II in Central Sayan Mountains: ascend to Edelstein peak (2649 m)
Igor Dyatlov, Vadim Brusnytsin, Yuri Doroshenko, Lyudmila Dubinina, Zinaida Kolmogorova, Igor Pasynkov, Boris Slobtsov, Vyacheslav Halizov
Dubinina was shot in the leg due to careless handling of a weapon. The group also witnessed the death of a hiker from another group, student of the Moscow Institute of Physics and Technology. He died in the Bazybayskiy water threshold on the Kаzyr river, Central Sayan.