Jannu | 1981 W Ridge
A Japan expedition to Jannu in 1981 via W Ridge, led by Masayuki Shinohara. Summit reached on 20th October 1981. 4 members recorded.
Expedition Details
| Field | Value |
|---|---|
| ID | 1801 |
| Imported | 2026-03-06 18:04:49.359634 |
| Expedition ID | JANU81301 |
| Peak ID | JANU |
| Year | 1981 |
| Season | 3 |
| Host Country | 1 |
| Route 1 | W Ridge |
| Route 2 | - |
| Route 3 | - |
| Route 4 | - |
| Nationality | Japan |
| Leaders | Masayuki Shinohara |
| Sponsor | Tokyo Tsuyukusa Mtn Club Jannu West Rib Expedition 1981 |
| Success 1 | False |
| Success 2 | False |
| Success 3 | False |
| Success 4 | False |
| Ascent 1 | - |
| Ascent 2 | - |
| Ascent 3 | - |
| Ascent 4 | - |
| Claimed | False |
| Disputed | False |
| Countries | - |
| Approach | Dharan->Yamatari Glacier BC |
| Basecamp Date | 1981-09-28 |
| Summit Date | 1981-10-20 |
| Summit Time | - |
| Summit Days | 22 |
| Total Days | 28 |
| Termination Date | 1981-10-26 |
| Termination Reason | 4 |
| Termination Notes | Abandoned at 7400m due to strong winds |
| High Point (m) | 7400 |
| Traverse | False |
| Ski | False |
| Paraglide | False |
| Camps | 3 |
| Fixed Rope (m) | 0 |
| Total Members | 4 |
| Summit Members | 0 |
| Member Deaths | 0 |
| Total Hired | 3 |
| Summit Hired | 0 |
| Hired Deaths | 0 |
| No Hired | False |
| O2 Used | False |
| O2 None | True |
| O2 Climb | False |
| O2 Descent | False |
| O2 Sleep | False |
| O2 Medical | False |
| O2 Taken | False |
| O2 Unknown | False |
| Other Summits | - |
| Campsites | BC(28/09,4800m),C1(04/10,5450m),C2(10/10,5900m),C3(15/10,6200m),xxx(20/10,7400m) |
| Route Notes | Yoshiga - 12 Nov 81 BC 4800m - 28 Sept Route = West Ridge (French route) South Ridge 5000-6000m by crevasses and seracs; climbed 3 days to 530m and then realized too difficult and dangerous for Sherpa carries, so changed to French route (West Ridge). C1 4 Oct 5450m C2 10 Oct 5900m C3 15 Oct 6200m (same camp moved each time) 2 Sherpas carried only to C1, 3 members carried above 15 Oct 6500m reached 16 Oct rested 18-20 Oct rush attack from 6200m - bivs: 18th 6780m 18 Oct strong wind, no sleep, holding everything down 19 Oct late start, reached 6820m bivouac at 11:30 am, could see no bivouac site above; again strong wind 20 Oct all 3 members leave bivouac equipment and go for top; up snow face and ridge to 7400m at 1:00 pm; late now and strong wind: 4-5 hours more to top and no bivouac equipment, so back to 6820m bivouac 21 Oct to C3 22 Oct to BC Climbing finished; enjoyed climb; no accidents, frostbite No oxygen at all with expedition. Sharma, Tourism - 26 Oct 81 Jannu West Rib abandoned Oct 21 because of strong wind. Had reached 7400m Oct 20. Leave BC between 26. 3 members led by Masayuki Shinohara. Ale, Tourism - 1 Oct 81 BC 28 Sept 4800m on south side. 1 Oct will begin climb Weather cloudy and snowing. All well Shinohara and Yoshiga - 25 Aug 81 Route = West Ridge to Czechs SW Ridge from Yamatari Col to col on West Ridge BC on Yamatari Col at 5000m C1 at col on West Ridge - 6000m C2 on West Ridge - 6800m C3 on SW Ridge - 7400m Present expeditions West Ridge is a rib which joins Czechs Ridge at about 7000m All 3 members arrived KTM 23 Aug left 5 Sept by road to Dharan. 15 or 16 days to BC. Arrive BC 20-22 Sept, summit 25 Oct. Difficult route: most difficult between C1 and C2: very steep, and between C3 and summit: also very steep. 3 Sherpas to C1 only. No oxygen at all. Tokyo Jannu West Rib Expedition 1981 420-2 Nish Kuki-shi Saitama-ken, Japan Tokyo Tsuyukusa Mountain Club |
| Accidents | - |
| Achievement | - |
| Agency | - |
| Commercial Route | - |
| Standard Route | - |
| Primary Route | False |
| Primary Member | False |
| Primary Reference | - |
| Primary ID | - |
| Checksum | 2447329 |
| Year | 1981 |
| Summit Success | False |
| O2 Summary | None |
| Route (lowercase) | w ridge |
Members
4 recorded members.
| Name | Sex | Year of Birth | Citizenship | Status | Residence | Occupation | |
|---|---|---|---|---|---|---|---|
| Takashi Moriguchi | M | 1951 | Japan | Climber | Hamakita, Shizuoka, Japan | Mechanical engineer | Details Other expeditions |
| Masayuki Shinohara | M | 1946 | Japan | Leader | Kuki, Saitama, Japan | Electrical engineer | Details Other expeditions |
| Shinichi Yoshiga | M | 1949 | Japan | Climber | Usuki, Oita, Japan | Electrical engineer | Details Other expeditions |
| Soichiro Asanami | M | - | Japan | Exp Doctor | - | - | Details Other expeditions |
References
4 recorded references.
| Expedition ID | Journal | Author | Title | Publisher | Citation | Yak 94 |
|---|---|---|---|---|---|---|
| JANU81301 | AAJ | Cheney, Michael J. & Hawley, Elizabeth | - | - | 56:205 (1982) | - |
| JANU81301 | IWA | - | - | - | 88:185 (1982) | - |
| JANU81301 | IWA | - | - | - | 88:35 (1982) | - |
| JANU81301 | - | - | http://publications.americanalpineclub.org/articles/12198220501/Asia-Nepal-Jannu-Attempt | - | - | - |