Cho Oyu | 2004 NW side

A Switzerland expedition to Cho Oyu in 2004 via NW side, led by Klaus Tscherrig. Summit reached on 25th September 2004. 10 members recorded.

Expedition Details

Field	Value
ID	4696
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY04332
Peak ID	CHOY
Year	2004
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Switzerland
Leaders	Klaus Tscherrig
Sponsor	Kobler & Partner Cho Oyu Expedition 2004
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	Germany, USA
Approach	Normal
Basecamp Date	2004-09-06
Summit Date	2004-09-25
Summit Time	0740
Summit Days	19
Total Days	22
Termination Date	2004-09-28
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	8
Summit Members	6
Member Deaths	0
Total Hired	2
Summit Hired	2
Hired Deaths	0
No Hired	False
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(06/09,4900m),ABC(08/09,5600m),C1(22/09,6400m),C2(23/09,7000m),C3(24/09,7400m),Smt(25/09)
Route Notes	BC at CBC/IC on 7th at 5300m ABC at usual campsite C1 at usual campsite C2 at usual campsite C3 at usual campsite. Summits between 8 am and 1 pm. Josette Valloton left BC on Sept 26 and went to KTM by road to get treatment for her frostbite in hospital. Josette Valloton got her frostbite on the summit day. Apparently it was not extremely cold. Frostbites possibly due to frostnips acquired at Xixabangma this spring. Team saw Everest, Lhtose, Kangchenjunga, Ama Dablam and Makalu in the clouds. Klaus Tscherrig met Mingma Sherpa from Tengboche on summit. Hansruedi Wirth turned around at 7500m due to fatigue. Farid Nadimi turned around at 6000m due to illness (virus). Sherpa summiters: Thilen, 20/11/68, Nurbugaon, Everest X5 Mitenjen, 30/7/69, Nurbugaon, Xixabangma Spr 2004
Accidents	Josette Valloton has 2nd degree frostbite on all toes except small toes
Achievement	-
Agency	Iceland Trekking (Dorje)
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2458653
Year	2004
Summit Success	True
O2 Summary	None
Route (lowercase)	nw side

Members

Field	Value
ID	36122
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	03
Peak ID	CHOY
Year	2004
Season	3
First Name	Charles Scott
Last Name	Clark
Sex	M
Age	0
Birth Date	-
Year of Birth	1962
Calculated Age	42
Citizenship	USA
Status	Climber
Residence	Tucson, Arizona
Occupation	Anesthesiologist
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1300
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	5
Summit Term	1
HCN	0
Checksum	2435744
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	charles scott clark
Year of Birth	1962
Year	2004
Age at Expedition	42
Role	Member

Field	Value
ID	36123
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	04
Peak ID	CHOY
Year	2004
Season	3
First Name	Nicole Nadine
Last Name	Clark
Sex	F
Age	0
Birth Date	-
Year of Birth	1972
Calculated Age	32
Citizenship	Switzerland
Status	Climber
Residence	Tucson, Arizona
Occupation	Nurse
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1300
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	5
Summit Term	1
HCN	0
Checksum	2439510
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nicole nadine clark
Year of Birth	1972
Year	2004
Age at Expedition	32
Role	Member

Field	Value
ID	36124
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	05
Peak ID	CHOY
Year	2004
Season	3
First Name	Farid
Last Name	Nadimi
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	43
Citizenship	Germany
Status	Climber
Residence	Stadtkyll, Rhineland-Palatinate, Germany
Occupation	Computer programmer
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)	False
Personal High Point (m)	6000
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	9
HCN	0
Checksum	2435228
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	farid nadimi
Year of Birth	1960
Year	2004
Age at Expedition	44
Role	Member

Field	Value
ID	36125
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	02
Peak ID	CHOY
Year	2004
Season	3
First Name	Marcel
Last Name	Thoma
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	35
Citizenship	Switzerland
Status	Deputy Leader
Residence	Taesch, Valais, Switzerland
Occupation	Alpine guide
Leader	False
Deputy	True
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0740
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	5
Summit Term	1
HCN	0
Checksum	2438160
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	marcel thoma
Year of Birth	1968
Year	2004
Age at Expedition	36
Role	Deputy

Field	Value
ID	36126
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	01
Peak ID	CHOY
Year	2004
Season	3
First Name	Klaus Roger
Last Name	Tscherrig
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	37
Citizenship	Switzerland
Status	Leader
Residence	Taesch, Valais, 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	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0900
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	5
Summit Term	1
HCN	0
Checksum	2437536
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	klaus roger tscherrig
Year of Birth	1967
Year	2004
Age at Expedition	37
Role	Leader

Field	Value
ID	36127
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	06
Peak ID	CHOY
Year	2004
Season	3
First Name	Josette
Last Name	Valloton
Sex	F
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	40
Citizenship	Switzerland
Status	Climber
Residence	Arolla, Valais, Switzerland
Occupation	Alpine guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0900
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	True
Injury Date	2004-09-25
Injury Time	-
Injury Type	3
Injury Height (m)	8000
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2436605
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	josette valloton
Year of Birth	1964
Year	2004
Age at Expedition	40
Role	Member

Field	Value
ID	36128
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	07
Peak ID	CHOY
Year	2004
Season	3
First Name	Daniel
Last Name	Walter
Sex	M
Age	0
Birth Date	-
Year of Birth	1972
Calculated Age	32
Citizenship	Switzerland
Status	Exp Doctor
Residence	Untervaz, Graubunden, Switzerland
Occupation	Physician
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0745
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	5
Summit Term	1
HCN	0
Checksum	2439405
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	daniel walter
Year of Birth	1972
Year	2004
Age at Expedition	32
Role	Member

Field	Value
ID	36129
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	08
Peak ID	CHOY
Year	2004
Season	3
First Name	Hansruedi
Last Name	Wirth
Sex	M
Age	0
Birth Date	-
Year of Birth	1943
Calculated Age	60
Citizenship	Switzerland
Status	Climber
Residence	Oberuzwil, St. Gallen, Switzerland
Occupation	Architect
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)	False
Personal High Point (m)	7500
Summit Date 1	2004-09-25
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	4
Summit Term	7
HCN	0
Checksum	2429046
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	hansruedi wirth
Year of Birth	1943
Year	2004
Age at Expedition	61
Role	Member

Field	Value
ID	36130
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	10
Peak ID	CHOY
Year	2004
Season	3
First Name	Thilen
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	36
Citizenship	Nepal
Status	H-A Worker
Residence	Nurbugaon, Makalu-Barun
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0900
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	Cousin of Muktu Lhakpa and Ongda Chhiring
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437941
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	thilen sherpa
Year of Birth	1968
Year	2004
Age at Expedition	36
Role	Hired

Field	Value
ID	36131
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04332
Member ID	09
Peak ID	CHOY
Year	2004
Season	3
First Name	Mitenjen (Mingma)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1969
Calculated Age	35
Citizenship	Nepal
Status	H-A Worker
Residence	Nurbugaon, Makalu-Barun
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2004-09-25
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1300
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	5
Summit Term	1
HCN	0
Checksum	2438378
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mitenjen (mingma) sherpa
Year of Birth	1969
Year	2004
Age at Expedition	35
Role	Hired

10 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Charles Scott Clark	M	1962	USA	Climber	Tucson, Arizona	Anesthesiologist	Details Other expeditions
Nicole Nadine Clark	F	1972	Switzerland	Climber	Tucson, Arizona	Nurse	Details Other expeditions
Farid Nadimi	M	1960	Germany	Climber	Stadtkyll, Rhineland-Palatinate, Germany	Computer programmer	Details Other expeditions
Marcel Thoma	M	1968	Switzerland	Deputy Leader	Taesch, Valais, Switzerland	Alpine guide	Details Other expeditions
Klaus Roger Tscherrig	M	1967	Switzerland	Leader	Taesch, Valais, Switzerland	Alpine guide	Details Other expeditions
Josette Valloton	F	1964	Switzerland	Climber	Arolla, Valais, Switzerland	Alpine guide	Details Other expeditions
Daniel Walter	M	1972	Switzerland	Exp Doctor	Untervaz, Graubunden, Switzerland	Physician	Details Other expeditions
Hansruedi Wirth	M	1943	Switzerland	Climber	Oberuzwil, St. Gallen, Switzerland	Architect	Details Other expeditions
Thilen Sherpa	M	1968	Nepal	H-A Worker	Nurbugaon, Makalu-Barun	-	Details Other expeditions
Mitenjen (Mingma) Sherpa	M	1969	Nepal	H-A Worker	Nurbugaon, Makalu-Barun	-	Details Other expeditions

References

0 recorded references.