- The climbing area is the Fan Mountains.
- The ascent route is to peak Diamar (3900) via the center of the northeast face. C. 3 cat.-4 π 1/111–29: — 45.
- Characteristics of the ascent:
Height difference — 900 m, average steepness — 60°, length of difficult sections — 245 m.
- Number of pitons driven:
rock — 54, ice — , screw (bolts) —
- Total travel time — 18.5 hours.
- Number of overnight stays — 1 (lying down).
- Team of the Order of Lenin Leningrad Military District.
- Full names of participants:
BELKIN N.G. — Candidate for Master of Sports, team leader, KHUDYAKOV O.V. — Master of Sports of International Class, FEDOROV S.A. — Master of Sports, ZINSIN S.L. — Master of Sports, POLYAKOV A.N. — 1st sports category, MALEEV E.V. — 1st sports category.
- Team coach KHUDYAKOV O.V.
- Entry to the route on June 27, 1977. Return — June 28, 1977.