Annapurna I | 1991 N Face (Dutch Rib)
A Japan expedition to Annapurna I in 1991 via N Face (Dutch Rib), led by Masaru Otani. Summit reached on 1st October 1991. 11 members recorded.
Expedition Details
| Field | Value |
|---|---|
| ID | 551 |
| Imported | 2026-03-06 18:04:49.359634 |
| Expedition ID | ANN191304 |
| Peak ID | ANN1 |
| Year | 1991 |
| Season | 3 |
| Host Country | 1 |
| Route 1 | N Face (Dutch Rib) |
| Route 2 | - |
| Route 3 | - |
| Route 4 | - |
| Nationality | Japan |
| Leaders | Masaru Otani |
| Sponsor | Hokkaido Central Workers Alpine Federation Annapurna I Exp. 1991 |
| 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 | Pokhara->Birstarti->Lete->Myristi Khola |
| Basecamp Date | 1991-09-10 |
| Summit Date | 1991-10-01 |
| Summit Time | - |
| Summit Days | 21 |
| Total Days | 28 |
| Termination Date | 1991-10-08 |
| Termination Reason | 5 |
| Termination Notes | Abandoned at 6450m due to avalanching |
| High Point (m) | 6450 |
| Traverse | False |
| Ski | False |
| Paraglide | False |
| Camps | 2 |
| Fixed Rope (m) | 0 |
| Total Members | 11 |
| Summit Members | 0 |
| Member Deaths | 0 |
| Total Hired | 6 |
| 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(10/09,4200m),ABC(16/09,5100m),C1(18/09,5700m),C2(28/09,6300m),xxx(01/10,6450m) |
| Route Notes | BC at North Annapurna Glacier moraine. Climb abandoned following snow avalanche that buried one member at 8:35 am on 1st Oct. He was dug out and not injured. On 3rd at 9:30 am very big snow avalanche hit BC and ABC, many tents broken and equipment lost at BC. Left BC 8th Oct. |
| Accidents | None |
| Achievement | - |
| Agency | Cosmo Treks |
| Commercial Route | - |
| Standard Route | True |
| Primary Route | False |
| Primary Member | False |
| Primary Reference | - |
| Primary ID | - |
| Checksum | 2453537 |
| Year | 1991 |
| Summit Success | False |
| O2 Summary | None |
| Route (lowercase) | n face (dutch rib) |
Members
11 recorded members.
| Name | Sex | Year of Birth | Citizenship | Status | Residence | Occupation | |
|---|---|---|---|---|---|---|---|
| Masahiro Akiba | M | 1953 | Japan | Climber | Yubari, Hokkaido, Japan | City civil servant | Details Other expeditions |
| Tatsumi Igakashi | M | 1952 | Japan | Climber | Sapporo, Hokkaido, Japan | Chiropractor | Details Other expeditions |
| Yoshimi Kitayama | M | 1949 | Japan | Climber | Sapporo, Hokkaido, Japan | Typesetting programmer | Details Other expeditions |
| Kenji Koyama | M | 1947 | Japan | Climber | Sapporo, Hokkaido, Japan | Bank clerk | Details Other expeditions |
| Kazutoshi Matsumoto | M | 1951 | Japan | Climber | Sapporo, Hokkaido, Japan | Printing company staff | Details Other expeditions |
| Mutsuo Ono | M | 1955 | Japan | Climber | Date, Hokkaido, Japan | Office worker | Details Other expeditions |
| Masaru Otani | M | 1950 | Japan | Leader | Sapporo, Hokkaido, Japan | Research chemist | Details Other expeditions |
| Hiroshi Nagamizu | M | 1949 | Japan | Climber | Sapporo, Hokkaido, Japan | Civil servant (Hokaido prefecture) | Details Other expeditions |
| Kazuo Sakata | M | 1954 | Japan | Climber | Sapporo, Hokkaido, Japan | Engineer | Details Other expeditions |
| Hideki Sato | M | 1948 | Japan | Climber | Sapporo, Hokkaido, Japan | Civil servant (Hokaido prefecture) | Details Other expeditions |
| Toshiko Takahashi | F | 1952 | Japan | Climber | Yubari, Hokkaido, Japan | City civil servant | Details Other expeditions |
References
4 recorded references.
| Expedition ID | Journal | Author | Title | Publisher | Citation | Yak 94 |
|---|---|---|---|---|---|---|
| ANN191304 | AAJ | Hawley, Elizabeth | - | - | 66:218-219 (1992) | - |
| ANN191304 | IWA | - | - | - | :216 (1992) | - |
| ANN191304 | IWA | - | - | - | :66 (1992) | - |
| ANN191304 | - | - | http://publications.americanalpineclub.org/articles/12199221803/Asia-Nepal-Annapurna-North-Face-Ascent-and-Attempts-Post-Monsoon | - | - | - |