Summer 1990 season
4 expeditions, of which 2 put someone on the summit. 6 summits (4 by members, 2 by hired staff) and 1 death, among 25 members and 6 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.
Busiest summit days
| Date | Peak | Summits |
|---|---|---|
| 21st June 1990 | Cho Oyu | 4 |
| 23rd August 1990 | Cho Oyu | 2 |
Peaks
| Peak | Height | Expeditions | Successful | Summits | Deaths |
|---|---|---|---|---|---|
| Cho Oyu | 8188 | 4 | 2 | 6 | 1 |