Annapurna South | 1991 SW Ridge
A Japan expedition to Annapurna South in 1991 via SW Ridge, led by Yoshio Matsunaga. Summit reached on 22nd October 1991. 7 members recorded.
Expedition Details
| Field | Value |
|---|---|
| ID | 532 |
| Imported | 2026-03-06 18:04:49.359634 |
| Expedition ID | ANNS91301 |
| Peak ID | ANNS |
| Year | 1991 |
| Season | 3 |
| Host Country | 1 |
| Route 1 | SW Ridge |
| Route 2 | - |
| Route 3 | - |
| Route 4 | - |
| Nationality | Japan |
| Leaders | Yoshio Matsunaga |
| Sponsor | Shizuoka Mt. Party Society of Nepal Himalaya 1991 to ANNS |
| Success 1 | True |
| Success 2 | False |
| Success 3 | False |
| Success 4 | False |
| Ascent 1 | 10th |
| Ascent 2 | - |
| Ascent 3 | - |
| Ascent 4 | - |
| Claimed | False |
| Disputed | False |
| Countries | - |
| Approach | - |
| Basecamp Date | 1991-09-27 |
| Summit Date | 1991-10-22 |
| Summit Time | - |
| Summit Days | 25 |
| Total Days | 29 |
| Termination Date | 1991-10-26 |
| Termination Reason | 1 |
| Termination Notes | - |
| High Point (m) | 7219 |
| Traverse | False |
| Ski | False |
| Paraglide | False |
| Camps | 3 |
| Fixed Rope (m) | 0 |
| Total Members | 6 |
| Summit Members | 3 |
| Member Deaths | 0 |
| Total Hired | 3 |
| Summit Hired | 1 |
| 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(27/09,4800m),C1(03/10,5770m),C2(09/10,5700m),C3(19/10,6400m),Smt(22/10) |
| Route Notes | BC east of beginning of SW Ridge C1 below ridge C2 on SW Ridge C3 on SW Ridge. Only 1 summit attack: others in no good condition. Ridge mixed snow and rock; difficult because right side, left side ice and wind blowing. Left BC 26 Oct. 10th ascent. |
| Accidents | Nothing very serious but 2 members with some altitude problems |
| Achievement | - |
| Agency | Himalayan Journeys |
| Commercial Route | - |
| Standard Route | - |
| Primary Route | False |
| Primary Member | False |
| Primary Reference | - |
| Primary ID | - |
| Checksum | 2453648 |
| Year | 1991 |
| Summit Success | True |
| O2 Summary | None |
| Route (lowercase) | sw ridge |
Members
7 recorded members.
| Name | Sex | Year of Birth | Citizenship | Status | Residence | Occupation | |
|---|---|---|---|---|---|---|---|
| Masami Kubota | M | 1947 | Japan | Climber | Shizuoka-shi, Shizuoka, Japan | Postman | Details Other expeditions |
| Yoshio Matsunaga | M | 1948 | Japan | Leader | Shizuoka-shi, Shizuoka, Japan | Insurance salesman | Details Other expeditions |
| Matashi Murakoshi | M | 1948 | Japan | Climber | Okabe-cho, Shida-gun, Shizuoka, Japan | Owner, transport company | Details Other expeditions |
| Yoshiyuki Shinchi | M | 1957 | Japan | Climbing Leader | Shizuoka-shi, Shizuoka, Japan | Crane operator | Details Other expeditions |
| Hidenobu Tsuji | M | 1961 | Japan | Climber | Shimada, Shizuoka, Japan | Carpenter (house builder) | Details Other expeditions |
| Masayuki Yamamoto | M | 1958 | Japan | Climber | Shizuoka-shi, Shizuoka, Japan | Engineer | Details Other expeditions |
| Ngati Sherpa | M | - | Nepal | H-A Worker | Phortse, Khumbu | - | Details Other expeditions |
References
4 recorded references.
| Expedition ID | Journal | Author | Title | Publisher | Citation | Yak 94 |
|---|---|---|---|---|---|---|
| ANNS91301 | AAJ | Hawley, Elizabeth | - | - | 66:222-224 (1992) | - |
| ANNS91301 | IWA | - | - | - | :216 (1992) | - |
| ANNS91301 | IWA | - | - | - | :68 (1992) | - |
| ANNS91301 | - | Shizuoka Mountaineering Union Nepal Himalayan Expedition | Annapurna Dakshin Expedition | Shizuoka Mountaineering Union, Shizuoka, Japan | - | JS74 |