1957 summer (Aug 24-Sep 16) traverse in Caucasus Mountains category II: city of Nalchik - Baksan - alpine camp"Nakra" - Bassa Pass - city of Suhumi (Chegem - Donguz - Oron)
Igor Dyatlov (leader), Lyudmila Blinkova, Yuri Voligov, Lidiya Grigoryeva, Zinaida Kolmogorova, Nina Oshtepkova, Liliya Russkih, Pavel Tarzin, Nikolay Tregubov, Vyacheslav Halizov, Evgeniy Chubarev, Vladimir Shunin