A Switzerland expedition to Cho Oyu in 1990 via W Ridge-W Face from S, led by Norbert Joos.
Summit reached on 23rd October 1990.
3 members recorded.
Expedition Details
Field
Value
ID
700
Imported
2026-03-06 18:04:49.359634
Expedition ID
CHOY90308
Peak ID
CHOY
Year
1990
Season
3
Host Country
1
Route 1
W Ridge-W Face from S
Route 2
-
Route 3
-
Route 4
-
Nationality
Switzerland
Leaders
Norbert Joos
Sponsor
Swiss Cho Oyu Expedition
Success 1
False
Success 2
False
Success 3
False
Success 4
False
Ascent 1
-
Ascent 2
-
Ascent 3
-
Ascent 4
-
Claimed
False
Disputed
False
Countries
Germany
Approach
-
Basecamp Date
1990-10-19
Summit Date
1990-10-23
Summit Time
-
Summit Days
4
Total Days
0
Termination Date
-
Termination Reason
10
Termination Notes
Abandoned at 6000m due to client's decision to quit
High Point (m)
6000
Traverse
False
Ski
False
Paraglide
False
Camps
1
Fixed Rope (m)
0
Total Members
3
Summit Members
0
Member Deaths
0
Total Hired
0
Summit Hired
0
Hired Deaths
0
No Hired
True
O2 Used
False
O2 None
True
O2 Climb
False
O2 Descent
False
O2 Sleep
False
O2 Medical
False
O2 Taken
True
O2 Unknown
False
Other Summits
-
Campsites
BC(19/10,5100m),C1(22/10,5700m),xxx(23/10,6000m)
Route Notes
BC at last yak huts Lunag, below Kangchung
C1 across Nangpa La
High point at Gyabrag Glacier.
23 Oct Hunziker tired and hungry on beautiful day and said he would not return over this glacier again; so climb finished with having done no more than high-altitude trek to point east of Pt 6600m on eastern side of glacier. Hunziker and Edenhofer were clients of Joos. Edenhofer had not planned to go above BC. Joos made no attempt to climb alone because of his responsibilities as client's guide.
Accidents
None
Achievement
-
Agency
Asian Trekking
Commercial Route
True
Standard Route
True
Primary Route
False
Primary Member
False
Primary Reference
-
Primary ID
-
Checksum
2453868
Year
1990
Summit Success
False
O2 Summary
None
Route (lowercase)
w ridge-w face from s
Members
Alfons Edenhofer
Field
Value
ID
4704
Imported
2026-03-06 18:06:05.675609
Expedition ID
CHOY90308
Member ID
02
Peak ID
CHOY
Year
1990
Season
3
First Name
Alfons
Last Name
Edenhofer
Sex
M
Age
0
Birth Date
-
Year of Birth
1928
Calculated Age
62
Citizenship
Germany
Status
Climber
Residence
Villars, Vaud, Switzerland
Occupation
Mechanic
Leader
False
Deputy
False
Basecamp Only
True
Not to BC
False
Support
False
Disabled
False
Hired
False
Sherpa
False
Tibetan
False
Summit Success
False
Claimed
False
Disputed
False
Solo
False
Traverse
False
Ski
False
Paraglide
False
Speed
-
High Point (m)
False
Personal High Point (m)
0
Summit Date 1
-
Summit Date 2
-
Summit Date 3
-
Summit Time 1
-
Summit Time 2
-
Summit Time 3
-
Route 1
0
Route 2
0
Route 3
0
Ascent 1
0
Ascent 2
0
Ascent 3
0
O2 Used
False
O2 None
True
O2 Climb
False
O2 Descent
False
O2 Sleep
False
O2 Medical
False
O2 Notes
-
Death
False
Death Date
-
Death Time
-
Death Type
0
Death Height (m)
0
Death Class
0
AMS
False
Weather
False
Injury
False
Injury Date
-
Injury Time
-
Injury Type
0
Injury Height (m)
0
Death Notes
-
Member Notes
-
Necrology
-
Summit Bid
1
Summit Term
17
HCN
0
Checksum
2423558
Summit Note 1
-
Summit Note 2
-
Summit Note 3
-
Death Route
-
Name (lowercase)
alfons edenhofer
Year of Birth
1928
Year
1990
Age at Expedition
62
Role
BC Only
Paul Hunziker
Field
Value
ID
4705
Imported
2026-03-06 18:06:05.675609
Expedition ID
CHOY90308
Member ID
03
Peak ID
CHOY
Year
1990
Season
3
First Name
Paul
Last Name
Hunziker
Sex
M
Age
0
Birth Date
-
Year of Birth
1934
Calculated Age
56
Citizenship
Switzerland
Status
Climber
Residence
Flueh, Solothurn, Switzerland
Occupation
Chiropodist
Leader
False
Deputy
False
Basecamp Only
False
Not to BC
False
Support
False
Disabled
False
Hired
False
Sherpa
False
Tibetan
False
Summit Success
False
Claimed
False
Disputed
False
Solo
False
Traverse
False
Ski
False
Paraglide
False
Speed
-
High Point (m)
True
Personal High Point (m)
6000
Summit Date 1
1990-10-23
Summit Date 2
-
Summit Date 3
-
Summit Time 1
-
Summit Time 2
-
Summit Time 3
-
Route 1
1
Route 2
0
Route 3
0
Ascent 1
0
Ascent 2
0
Ascent 3
0
O2 Used
False
O2 None
True
O2 Climb
False
O2 Descent
False
O2 Sleep
False
O2 Medical
False
O2 Notes
-
Death
False
Death Date
-
Death Time
-
Death Type
0
Death Height (m)
0
Death Class
0
AMS
False
Weather
False
Injury
False
Injury Date
-
Injury Time
-
Injury Type
0
Injury Height (m)
0
Death Notes
-
Member Notes
-
Necrology
-
Summit Bid
1
Summit Term
7
HCN
0
Checksum
2425532
Summit Note 1
-
Summit Note 2
-
Summit Note 3
-
Death Route
-
Name (lowercase)
paul hunziker
Year of Birth
1934
Year
1990
Age at Expedition
56
Role
Member
Norbert Joos
Field
Value
ID
4706
Imported
2026-03-06 18:06:05.675609
Expedition ID
CHOY90308
Member ID
01
Peak ID
CHOY
Year
1990
Season
3
First Name
Norbert
Last Name
Joos
Sex
M
Age
0
Birth Date
-
Year of Birth
1960
Calculated Age
30
Citizenship
Switzerland
Status
Leader
Residence
Gruesch, Graubunden, Switzerland
Occupation
Alpine guide
Leader
True
Deputy
False
Basecamp Only
False
Not to BC
False
Support
False
Disabled
False
Hired
False
Sherpa
False
Tibetan
False
Summit Success
False
Claimed
False
Disputed
False
Solo
False
Traverse
False
Ski
False
Paraglide
False
Speed
-
High Point (m)
True
Personal High Point (m)
6000
Summit Date 1
1990-10-23
Summit Date 2
-
Summit Date 3
-
Summit Time 1
-
Summit Time 2
-
Summit Time 3
-
Route 1
1
Route 2
0
Route 3
0
Ascent 1
0
Ascent 2
0
Ascent 3
0
O2 Used
False
O2 None
True
O2 Climb
False
O2 Descent
False
O2 Sleep
False
O2 Medical
False
O2 Notes
-
Death
False
Death Date
-
Death Time
-
Death Type
0
Death Height (m)
0
Death Class
0
AMS
False
Weather
False
Injury
False
Injury Date
-
Injury Time
-
Injury Type
0
Injury Height (m)
0
Death Notes
-
Member Notes
-
Necrology
(1960-2016) Died 10 July 2016 in Bernina Alps from falling