An overview of all data held in the Himalayan Database, covering expeditions from 1905 to 2025.
Peaks
Total peaks
490
Peaks with a recorded first ascent
369
Peaks above 8,000m
16
Highest peak
8,849m
Lowest peak
5,407m
Earliest recorded first ascent
1909
Sub-ranges
20
Regions
7
Expeditions
Total expeditions
11,695
Peaks attempted
425
Year range
1905–2025
Successful expeditions
6,569 (56.2%)
Unsuccessful expeditions
5,126
Commercial expeditions
5,788 (49.5%)
Disputed summit claims
63
Distinct routes recorded
1,281
Traverse expeditions
117
Ski descents
193
Members
Total member records
92,767
Approximate unique climbers *
40,706
Total summit records
39,500
Total deaths
1,177 (1.2688% of all member records)
Hired staff records
21,326
Male / Female
83,431 / 9,335 (10.1% female)
Nationalities represented
258
Average age at expedition
38.4 years
Youngest / Oldest member
7 / 86 years
Used supplemental O₂
25,442 (27.4%)
Solo ascents
130
* Unique climbers are approximated by counting distinct combinations of first name, last name, and year of birth. This may over-count where the same person's name is recorded differently across expeditions, and under-count where different people share the same name and birth year.