В гребню
Mixed2А
Ascent to the summit of Ontsana (4900 m) in the Caucasus, 2B grade, height difference 1000 m, duration 10 hours.
Ascent Record
- Ascent type: Rock climbing
- Ascent area: Caucasus, Tsey Gorge
- Proposed category difficulty: 2B
- Summit: peak Oniani 4200 m via Eastern ridge
- Elevation gain: 1000 m Average slope: 30–40°
- Number of pitons: 1
- Total climbing hours: 10 h
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