Autumn 1991 season
102 expeditions, of which 48 put someone on the summit. 193 summits (163 by members, 30 by hired staff) and 14 deaths, among 725 members and 59 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
- Cheo Himal (6820m), Oct 13 — Japan, Nepal: Dambar Bahadur Gurung, Shigeki Imoto, Ful Bahadur Rai, Pasang Tshering Sherpa (CHEO91301)
Busiest summit days
Peaks
| Peak | Height | Expeditions | Successful | Summits | Deaths |
|---|---|---|---|---|---|
| Cho Oyu | 8188 | 13 | 8 | 31 | 1 |
| Everest | 8849 | 13 | 2 | 8 | 0 |
| Annapurna I | 8091 | 10 | 4 | 15 | 7 |
| Pumori | 7138 | 9 | 8 | 32 | 3 |
| Dhaulagiri I | 8167 | 6 | 2 | 4 | 0 |
| Makalu | 8485 | 5 | 5 | 16 | 2 |
| Ama Dablam | 6814 | 4 | 4 | 23 | 0 |
| Manaslu | 8163 | 4 | 1 | 2 | 0 |
| Kusum Kanguru | 6370 | 3 | 1 | 2 | 1 |
| Annapurna IV | 7525 | 3 | 0 | 0 | 0 |
| Tilicho | 7134 | 2 | 2 | 19 | 0 |
| Bhrikuti | 6476 | 2 | 2 | 10 | 0 |
| Annapurna South | 7219 | 2 | 1 | 4 | 0 |
| Tukuche | 6920 | 2 | 2 | 4 | 0 |
| Annapurna III | 7555 | 2 | 0 | 0 | 0 |
| Baruntse | 7152 | 2 | 0 | 0 | 0 |
| Gangapurna | 7455 | 2 | 0 | 0 | 0 |
| Kangchenjunga | 8586 | 2 | 0 | 0 | 0 |
| Langtang Lirung | 7227 | 2 | 0 | 0 | 0 |
| Lhotse | 8516 | 2 | 0 | 0 | 0 |
| Kang Guru | 6981 | 1 | 1 | 6 | 0 |
| Dhampus | 6012 | 1 | 1 | 5 | 0 |
| Chamlang | 7321 | 1 | 1 | 4 | 0 |
| Cheo Himal | 6820 | 1 | 1 | 4 | 0 |
| Makalu II | 7678 | 1 | 1 | 2 | 0 |
| Numbur | 6958 | 1 | 1 | 2 | 0 |
| Glacier Dome | 7168 | 1 | 0 | 0 | 0 |
| Kwangde Shar | 6093 | 1 | 0 | 0 | 0 |
| Nuptse | 7864 | 1 | 0 | 0 | 0 |
| Putha Hiunchuli | 7246 | 1 | 0 | 0 | 0 |
| Tripura Hiunchuli | 6553 | 1 | 0 | 0 | 0 |
| Yalung Kang | 8505 | 1 | 0 | 0 | 0 |