Annapurna IV | 1970 NW Ridge
A Japan expedition to Annapurna IV in 1970 via NW Ridge, led by Masahiro Kawakita. Summit reached on 25th April 1970. 8 members recorded.
Expedition Details
| Field | Value |
|---|---|
| ID | 31 |
| Imported | 2026-03-06 18:04:49.359634 |
| Expedition ID | ANN470101 |
| Peak ID | ANN4 |
| Year | 1970 |
| Season | 1 |
| Host Country | 1 |
| Route 1 | NW Ridge |
| Route 2 | - |
| Route 3 | - |
| Route 4 | - |
| Nationality | Japan |
| Leaders | Masahiro Kawakita |
| Sponsor | Kansai University Alpine Club |
| Success 1 | True |
| Success 2 | False |
| Success 3 | False |
| Success 4 | False |
| Ascent 1 | 7th |
| Ascent 2 | - |
| Ascent 3 | - |
| Ascent 4 | - |
| Claimed | False |
| Disputed | False |
| Countries | - |
| Approach | Marshyangdi->Hongde->Sabje Khola |
| Basecamp Date | - |
| Summit Date | 1970-04-25 |
| Summit Time | - |
| Summit Days | 0 |
| Total Days | 0 |
| Termination Date | - |
| Termination Reason | 1 |
| Termination Notes | - |
| High Point (m) | 7525 |
| Traverse | False |
| Ski | False |
| Paraglide | False |
| Camps | 4 |
| Fixed Rope (m) | 0 |
| Total Members | 8 |
| Summit Members | 2 |
| 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,C1,C2(19/04,5600m),C3(22/04,5900m),C4(23/04,6450m),Smt(25/04),Biv(25/04,6600m) |
| Route Notes | Kawakita - 19 May 70 All expedition members to KTM today. 25 April summit by Takeo and Furutani. Mostly same route as Czechs, from northwest; but big crevasse and icefalls so same deviations. Most difficult between C3 and C5 with big crevasse after IV 30-40m wide with 30-40m from lower lip to upper; last year Czechs and Yugos did not have this crevasse to get over; crevasse had slight overhang; Japanese used small ladders and very long pitons. C2 - 5600m 19 April C3 - 5900m 22 April C4 - 6450m 23 April Bivouac site = big crevasse between C4 and C5. Big avalanches near Annapurna II. All members reached 6000m including Dr; couldn't put more members on summit because had placed summit one week earlier and not enough food supplies in high camps. Did not use oxygen at all. Leave Nepal after 1-2 weeks perhaps; may do some trekking. Kawakita - 7 March 70 5 members arrive today, 3 already here; so all here now all baggage in Pokhara already. Same route as Czechs. Leave morning 15 March to Pokhara and 18 March leave to march and establish basecamp 10 days later. Summit attempt 25 April; 4 camps with highest 7000m 6 Sherpas, 40 porters. Kansai University - Annapurna IV Munekazu Takeo, vice-leader M Teramoto, K Ichijima Other 5 most arrive March by Thai, staying rented house near Chinese embassy Same peak as Yugo and Czech, North Face ascent 1st Japanese attempt on Annapurna IV First time in Nepal for all members; all 8 hope reach summit Brought same oxygen for medical purposes 3-5 camps (last at 7000m) |
| Accidents | - |
| Achievement | - |
| Agency | - |
| Commercial Route | - |
| Standard Route | - |
| Primary Route | False |
| Primary Member | False |
| Primary Reference | - |
| Primary ID | - |
| Checksum | 2445732 |
| Year | 1970 |
| Summit Success | True |
| O2 Summary | None |
| Route (lowercase) | nw ridge |
Members
8 recorded members.
| Name | Sex | Year of Birth | Citizenship | Status | Residence | Occupation | |
|---|---|---|---|---|---|---|---|
| Masahiro Kawakita | M | - | Japan | Leader | Tendi-shi, Nara, Japan | President, Kawakita Optician & Co. | Details Other expeditions |
| Munekazu Takeo | M | - | Japan | Vice Leader | Osaka, Japan | Sales manager, Tailor Takeda & Co. | Details Other expeditions |
| Megumu Nishijima | M | - | Japan | Treasurer | Osaka, Japan | Manager, Sinko Kogyo Co. (air-condition industry) | Details Other expeditions |
| Mitsuo Teramoto | M | - | Japan | Transportation | Osaka, Japan | Sales manager, Teramoto Foods Store | Details Other expeditions |
| Masaru Shikada | M | - | Japan | Climber | Osaka, Japan | Sales manager, Shikata Foundry Co. | Details Other expeditions |
| Koichi Ichijima | M | - | Japan | Foods | Osaka, Japan | Staff member, Marunaga Clothing Co. | Details Other expeditions |
| Kazuhiko Furutani | M | - | Japan | Climber | Osaka, Japan | Director, Furutani Grain Shop | Details Other expeditions |
| Takayoshi Yokoyama | M | - | Japan | Exp Doctor | Osaka, Japan | Physician, Osaka Policemen's Hospital | Details Other expeditions |
References
3 recorded references.
| Expedition ID | Journal | Author | Title | Publisher | Citation | Yak 94 |
|---|---|---|---|---|---|---|
| ANN470101 | AAJ | Yoshizawa, Ichiro | - | - | 45:436 (1971) | - |
| ANN470101 | MM | - | - | - | 10:6 (Jul 1970) | - |
| ANN470101 | - | - | http://publications.americanalpineclub.org/articles/12197143602/Asia-Nepal-Annapurna-IV | - | - | - |