Passport

1. Technical class
2. Pamir-Alai, Ak-Su gorge
3. Pik Petrogradets (5164 m), via the center of the southeast wall through the spall.
4. Assumed — 6A cat. tr. first ascent.
5. Elevation gain: 960 m, length — 1160 m. Length of sections with 5–6 cat. tr. — 640 m. Average steepness of the main part of the route 74° (4200–5120 m), including 6 cat. tr.:
   • 83° (4560–4600 m)
   • (4700–4940 m)
   • (5020–5060 m)

Ascent Log

Completed in the 1982 Leningrad City Alpinism Championship

1. Ascent class: technical
2. Ascent area: Pamir range, Turkestan range, AkSu valley
3. Peak, its height, ascent route: Petrogradets 5163 m via the center of the "south-east wall"
4. Proposed difficulty category: 5B cat. diff. (rocky)
5. Route characteristics: height difference 4200–5163 m (963 m), length of sections with 5–6 difficulty category 490 m, sections with 5th cat. diff. — 395 m, sections with 6th cat. diff. — 95 m, average steepness 72°
6. Pitons driven: for insurance, rock — 122, ice — 0, bolt — 0, chocks — 39; for creating artificial anchors, rock — 29, ice — 0, bolt — 0
7. Number of climbing hours: 37 over 4 days
8. Number of overnight stays and their characteristics: 3 overnight stays — shared (2 short lying, 1 — sitting)

Ascent Passport

I. Ascent Classification Technical 2. Ascent Area: Pamir range, Turkestan Ridge, Ak-Su gorge 3. Peak, its height, ascent route: Petrogradets, 5163 m via the center of the southeast wall 4. Proposed category of difficulty: 5B (2nd ascent) 5. Route characteristics: height difference 4200 m – 5163 m = 963 m, length of sections with 5–6 category of difficulty 490 m: 5th category — 395 m, 6th category — 95 m, average steepness 72° 6. Pitons driven: for belaying: rock — 119, ice — 0, bolt — 0, placements — 42