ЮВ гребню

I. Technical class 2. Pamir-Alay, Ak-su valley 3. Peak Dostoyevsky (4974 m) via the East ridge, combined 4. Proposed category 4B, first ascent 5. Height difference 570 m, length 1320 m. Length of sections category 4 — 280 m, category 5 — 40 m. Average slope of the route 27°, average slope of the couloir 30°, average slope of the ridge 20°, slope of the summit tower wall 60° 6. Pitons driven: rock 40, chockstones 30 7. Climbing hours — 19, days — 2 8. Overnight stay: 1st on a site prepared on a snowy ridge 9. Leader: Viktor Pruss, 1st sports category. Participants: Serafim Vasiliev, 1st sports category. Valentin Litskevich, 1st sports category. Izolda Shaginyan, Master of Sports of the USSR 10. Coach: Yuri Kozlov, Master of Sports of the USSR