Autumn 1990 season
93 expeditions, of which 45 put someone on the summit. 201 summits (159 by members, 42 by hired staff) and 11 deaths, among 682 members and 58 hired staff recorded.
Summits count member records: someone who summited twice on one expedition counts once, someone on two expeditions in the season counts twice. Claimed (unrecognised) ascents are excluded and disputed ones included, as in the database's own statistics. Hired staff are only recorded when they went above base camp.
First ascents
- Saipal East Humla (6925m), Oct 26 — Switzerland, Nepal: Jacques Montaz, Tendi Sherpa (SAIP90301)
Busiest summit days
Peaks
| Peak | Height | Expeditions | Successful | Summits | Deaths |
|---|---|---|---|---|---|
| Pumori | 7138 | 12 | 9 | 43 | 0 |
| Everest | 8849 | 12 | 5 | 31 | 4 |
| Cho Oyu | 8188 | 9 | 5 | 27 | 0 |
| Ama Dablam | 6814 | 8 | 4 | 12 | 0 |
| Dhaulagiri I | 8167 | 7 | 5 | 18 | 1 |
| Makalu | 8485 | 6 | 1 | 3 | 0 |
| Annapurna IV | 7525 | 3 | 1 | 5 | 0 |
| Annapurna I | 8091 | 3 | 0 | 0 | 0 |
| Saipal | 7030 | 2 | 2 | 5 | 0 |
| Baruntse | 7152 | 2 | 1 | 2 | 1 |
| Lhotse | 8516 | 2 | 1 | 2 | 0 |
| Tawoche | 6495 | 2 | 1 | 2 | 0 |
| Manaslu | 8163 | 2 | 0 | 0 | 3 |
| Tilicho | 7134 | 2 | 0 | 0 | 0 |
| Dhampus | 6012 | 1 | 1 | 17 | 0 |
| Nilgiri North | 7061 | 1 | 1 | 6 | 0 |
| Numbur | 6958 | 1 | 1 | 6 | 0 |
| Churen Himal West | 7371 | 1 | 1 | 5 | 0 |
| Annapurna III | 7555 | 1 | 1 | 4 | 0 |
| Churen Himal Central | 7385 | 1 | 1 | 3 | 0 |
| Tarke Kang Shar | 7069 | 1 | 1 | 3 | 0 |
| Tukuche | 6920 | 1 | 1 | 3 | 0 |
| Chamlang | 7321 | 1 | 1 | 2 | 0 |
| Lhotse Shar | 8382 | 1 | 1 | 2 | 0 |
| Annapurna II | 7937 | 1 | 0 | 0 | 0 |
| Changtse | 7583 | 1 | 0 | 0 | 0 |
| Cheo Himal | 6820 | 1 | 0 | 0 | 1 |
| Dorje Lhakpa | 6966 | 1 | 0 | 0 | 0 |
| Gangapurna | 7455 | 1 | 0 | 0 | 0 |
| Kagmara I | 5978 | 1 | 0 | 0 | 0 |
| Kande Hiunchuli | 6627 | 1 | 0 | 0 | 0 |
| Kangchenjunga Central | 8473 | 1 | 0 | 0 | 0 |
| Kanjiroba South | 6883 | 1 | 0 | 0 | 0 |
| Langtang Lirung | 7227 | 1 | 0 | 0 | 0 |
| Langtang Ri | 7205 | 1 | 0 | 0 | 1 |