Ama Dablam | 1981 N Ridge
A Australia expedition to Ama Dablam in 1981 via N Ridge, led by Ken McMahon. Summit reached on 15th May 1981. 9 members recorded.
Expedition Details
| Field | Value |
|---|---|
| ID | 1812 |
| Imported | 2026-03-06 18:04:49.359634 |
| Expedition ID | AMAD81102 |
| Peak ID | AMAD |
| Year | 1981 |
| Season | 1 |
| Host Country | 1 |
| Route 1 | N Ridge |
| Route 2 | - |
| Route 3 | - |
| Route 4 | - |
| Nationality | Australia |
| Leaders | Ken McMahon |
| Sponsor | Australian Himalayan Expedition 1981 |
| Success 1 | True |
| Success 2 | False |
| Success 3 | False |
| Success 4 | False |
| Ascent 1 | 16th |
| Ascent 2 | - |
| Ascent 3 | - |
| Ascent 4 | - |
| Claimed | False |
| Disputed | False |
| Countries | Canada, USA |
| Approach | Karantichap->Khumbu Valley |
| Basecamp Date | 1981-04-11 |
| Summit Date | 1981-05-15 |
| Summit Time | 1200 |
| Summit Days | 34 |
| Total Days | 40 |
| Termination Date | 1981-05-21 |
| Termination Reason | 1 |
| Termination Notes | - |
| High Point (m) | 6814 |
| Traverse | False |
| Ski | False |
| Paraglide | False |
| Camps | 4 |
| Fixed Rope (m) | 0 |
| Total Members | 9 |
| Summit Members | 3 |
| Member Deaths | 0 |
| Total Hired | 0 |
| Summit Hired | 0 |
| Hired Deaths | 0 |
| No Hired | True |
| 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(11/04,5100m),C1(20/04,5500m),C2(24/04,5800m),C3(03/05,6100m),C4(13/05,6500m),Biv(14/05,6700m),Smt(15/05) |
| Route Notes | 5 members including 3 summiters - 26 May 81 BC - 11 April - 16,800 feet C1 - 20 April - 18,000 feet C2 - 24 April - 19,000 feet C3 - 3 May - 20,000 feet C4 - 13 May - 21,200 feet 14 May bivouac in snowhole at 22,000 by summit trio. 15 May to summit midday and back to C4; arrived C4 at 10:00 pm without fixed ropes climbing on flat section in bad snow conditions. North Ridge - first 2 successes took right-hand spur and Aussies took an eastern spur. Route originally attempted by 1959 British (found old ropes and rusty pitons) for 1/3 of climb. More difficult than expected due to snow conditions; much would have been different and perhaps easier in post-monsoon when would have been deeper snow. Only one summit attempt: 1 not acclimatized 1 chest infection (McMahon) 3 left for summit attempt No avalanche danger, no glacier Approach to this route = safe route but bad weather and difficult climb No accident, no frostbite Pluth - 26 May 81 Summiters were Hall, Henderson and Macartney-Snape on 15 May Only they are summit party; all in very good condition 5 arrived today; rest later today or tomorrow McMahon - 26 March 81 Karen Robins has dysentery so she and McMahan fly to Lukla 30th and wait there for rest of expedition, who left this am for Kirantichap and start walking to Khumbu tomorrow. Whole team - 22 March 81 Route = North Ridge (same as New Zealand and French) Leave 26 March; walking from Kirantichap Arrive BC 10 April east of Col (5365m on Schneider map) 2 or 3 camps above BC with highest at 22,000 feet Summit early May but one month on not depending on weather. No Sherpas above BC. No oxygen at all. Australian Himalayan Expedition 1981 |
| Accidents | - |
| Achievement | - |
| Agency | - |
| Commercial Route | False |
| Standard Route | - |
| Primary Route | False |
| Primary Member | False |
| Primary Reference | - |
| Primary ID | - |
| Checksum | 2449556 |
| Year | 1981 |
| Summit Success | True |
| O2 Summary | None |
| Route (lowercase) | n ridge |
Members
9 recorded members.
| Name | Sex | Year of Birth | Citizenship | Status | Residence | Occupation | |
|---|---|---|---|---|---|---|---|
| Hooman Nmi Aprin | M | 1946 | USA | Climber | Tucson, Arizona | Surveyor | Details Other expeditions |
| Leo Ertsler | M | 1944 | Canada | Support | Vancouver, British Colombia | Carpenter | Details Other expeditions |
| Lincoln Ross Hall | M | 1955 | Australia | Climber | Canberra, ACT, Australia | Tour guide | Details Other expeditions |
| Andrew Henderson | M | 1955 | Australia | Climber | Mosman, NSW, Australia | Electronics engineer | Details Other expeditions |
| Damien Jones | M | 1956 | Australia | Support | Garran, ACT, Australia | Physicist | Details Other expeditions |
| Timothy John Macartney-Snape | M | 1956 | Australia | Climber | Greta South, Victoria, Australia | Biologist & alpine guide | Details Other expeditions |
| Kenneth (Ken) McMahon | M | 1959 | Australia | Leader | Sydney, NSW, Australia | Chemical engineer | Details Other expeditions |
| David Pluth | M | 1946 | USA | Climber | Calgary, Alberta | Environmental engineer | Details Other expeditions |
| Karen Robins | F | 1959 | Australia | Support | Sylvania, NSW, Australia | Microbiologist | Details Other expeditions |
References
4 recorded references.
| Expedition ID | Journal | Author | Title | Publisher | Citation | Yak 94 |
|---|---|---|---|---|---|---|
| AMAD81102 | AAJ | McMahon, Kenneth | - | - | 56:210-211 (1982) | - |
| AMAD81102 | MM | - | - | - | 80:13 (Jul 1981) | - |
| AMAD81102 | NZAJ | McMahon, Ken | Captain Crunch: The Australian Ama Dablam Expedition, 1981 | - | 34:63-66 (1981) | - |
| AMAD81102 | - | - | http://publications.americanalpineclub.org/articles/12198221003/Asia-Nepal-Ama-Dablam | - | - | - |