Spring 1970 season
17 expeditions, of which 13 put someone on the summit. 42 summits (33 by members, 9 by hired staff) and 11 deaths, among 218 members and 25 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
- Lhotse Shar (8382m), May 12 — Austria: Josef Mayerl, Rolf Walter (LSHR70101)
- Churen Himal East (7371m), Apr 29 — S Korea, Nepal: Kim Ho-Sup, Rinsing Ongyal Sherpa (CHRE70101)
- Dhaulagiri VI (7268m), Apr 17 — Japan: Shiro Kawazu, Shoichi Kimura, Hisazumi Nakamura, Seijiro Yamamura (DHA670101)
- Tukuche (6920m), Apr 30 — Japan: Hirosuke Kikuchi, Eiho Otani, Takao Yonemoto (TUKU70101)
- Rani Peak (6693m), May 05 — Netherlands, Nepal: Herman Tollenaar, Ang Phurba Sherpa, Mingma Tsering Sherpa, Nima Dorje Sherpa (RANI70101)
- Baudha (6672m), May 02 — Japan: Yoshiyuki Kobayashi, Kiyoyasu Shibata (BAUD70101)
Busiest summit days
Peaks
| Peak | Height | Expeditions | Successful | Summits | Deaths |
|---|---|---|---|---|---|
| Annapurna I | 8091 | 2 | 2 | 4 | 1 |
| Everest | 8849 | 2 | 1 | 4 | 8 |
| Rani Peak | 6693 | 1 | 1 | 12 | 0 |
| Annapurna III | 7555 | 1 | 1 | 4 | 0 |
| Dhaulagiri VI | 7268 | 1 | 1 | 4 | 0 |
| Tukuche | 6920 | 1 | 1 | 3 | 1 |
| Annapurna IV | 7525 | 1 | 1 | 2 | 0 |
| Baudha | 6672 | 1 | 1 | 2 | 1 |
| Churen Himal East | 7371 | 1 | 1 | 2 | 0 |
| Lhotse Shar | 8382 | 1 | 1 | 2 | 0 |
| Makalu | 8485 | 1 | 1 | 2 | 0 |
| Pokalde | 5780 | 1 | 1 | 1 | 0 |
| Churen Himal West | 7371 | 1 | 0 | 0 | 0 |
| Dhaulagiri IV | 7661 | 1 | 0 | 0 | 0 |
| Peak 29 | 7871 | 1 | 0 | 0 | 0 |