Cho Oyu | 1990 W Ridge-W Face from S

A Spain expedition to Cho Oyu in 1990 via W Ridge-W Face from S, led by Pedro Jose Tous Roldan. Summit reached on 6th October 1990. 8 members recorded.

Expedition Details

Field	Value
ID	701
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY90307
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	Spain
Leaders	Pedro Jose Tous Roldan
Sponsor	Uda 1990 - to Cho Oyu
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	74th,77th
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	-
Basecamp Date	1990-09-17
Summit Date	1990-10-06
Summit Time	1200
Summit Days	19
Total Days	0
Termination Date	-
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	8
Summit Members	5
Member Deaths	0
Total Hired	1
Summit Hired	0
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(17/09,5350m),ABC(26/09,5700m),C1(28/09,6450m),C2(29/09,7000m),Smt(06,08/10)
Route Notes	BC at same as Catalans this autumn C2 at same as Catalans. Reached summit from C2. On 6th left C2 at 2:00 am and on true top at 12:00 noon and back to C2 4:30 pm. On 8th started at 3:00 am, on top 2:00 pm and back to C2 7:00 pm in dark. Had no headlamps; bright moonlight on ascent. Made no attempt to climb SW Ridge.
Accidents	Sherpa sick (coughing blood, so weak in summit bid and turned back at 7500m)
Achievement	-
Agency	Kunga
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2453851
Year	1990
Summit Success	True
O2 Summary	None
Route (lowercase)	w ridge-w face from s

Members

Field	Value
ID	4696
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	02
Peak ID	CHOY
Year	1990
Season	3
First Name	Luis (Koldo)
Last Name	Aranguren Arrieta
Sex	M
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	26
Citizenship	Spain
Status	Climber
Residence	Pamplona, Navarra, Spain
Occupation	Draftsman
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	1990-10-06
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1200
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	74
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	2436614
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	luis (koldo) aranguren arrieta
Year of Birth	1964
Year	1990
Age at Expedition	26
Role	Member

Field	Value
ID	4697
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	03
Peak ID	CHOY
Year	1990
Season	3
First Name	Juan Maria (Pitxi)
Last Name	Eguillor Ulzurrun
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	42
Citizenship	Spain
Status	Climber
Residence	Pamplona, Navarra, Spain
Occupation	Sculptor
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	1990-10-06
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1200
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	74
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	2430723
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	juan maria (pitxi) eguillor ulzurrun
Year of Birth	1948
Year	1990
Age at Expedition	42
Role	Member

Field	Value
ID	4698
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	04
Peak ID	CHOY
Year	1990
Season	3
First Name	Francisco Jose (Patxi)
Last Name	Fernandez Elizalde
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	30
Citizenship	Spain
Status	Climber
Residence	Isaba, Navarra, Spain
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	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	1990-10-06
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1200
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	74
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	2435227
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	francisco jose (patxi) fernandez elizalde
Year of Birth	1960
Year	1990
Age at Expedition	30
Role	Member

Field	Value
ID	4699
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	05
Peak ID	CHOY
Year	1990
Season	3
First Name	Tomas
Last Name	Izco Cabezon
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	31
Citizenship	Spain
Status	Climber
Residence	Pamplona, Navarra, Spain
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	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	0
Summit Term	0
HCN	0
Checksum	2434565
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tomas izco cabezon
Year of Birth	1958
Year	1990
Age at Expedition	32
Role	Member

Field	Value
ID	4700
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	06
Peak ID	CHOY
Year	1990
Season	3
First Name	Miguel
Last Name	Madoz Resano
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	34
Citizenship	Spain
Status	Climber
Residence	Pamplona, Navarra, Spain
Occupation	Forestry engineer
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)	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	0
Summit Term	0
HCN	0
Checksum	2433695
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	miguel madoz resano
Year of Birth	1956
Year	1990
Age at Expedition	34
Role	Member

Field	Value
ID	4701
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	07
Peak ID	CHOY
Year	1990
Season	3
First Name	Mikel
Last Name	Reparaz Chacon
Sex	M
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	27
Citizenship	Spain
Status	Climber
Residence	Pamplona, Navarra, Spain
Occupation	Forestry engineer
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	1990-10-08
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1400
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	77
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	2436199
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mikel reparaz chacon
Year of Birth	1963
Year	1990
Age at Expedition	27
Role	Member

Field	Value
ID	4702
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	08
Peak ID	CHOY
Year	1990
Season	3
First Name	Leonardo
Last Name	San Sabastian Aguirre
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	34
Citizenship	Spain
Status	Climber
Residence	San Sebastian, Guipuzcoa, Spain
Occupation	Ski instructor
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)	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	0
Summit Term	0
HCN	0
Checksum	2433794
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	leonardo san sabastian aguirre
Year of Birth	1956
Year	1990
Age at Expedition	34
Role	Member

Field	Value
ID	4703
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY90307
Member ID	01
Peak ID	CHOY
Year	1990
Season	3
First Name	Pedro Jose
Last Name	Tous Roldan
Sex	M
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	27
Citizenship	Spain
Status	Leader
Residence	Pamplona, Navarra, Spain
Occupation	Mechanic
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	1990-10-08
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1400
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	77
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	2436063
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pedro jose tous roldan
Year of Birth	1963
Year	1990
Age at Expedition	27
Role	Leader

8 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Luis (Koldo) Aranguren Arrieta	M	1964	Spain	Climber	Pamplona, Navarra, Spain	Draftsman	Details Other expeditions
Juan Maria (Pitxi) Eguillor Ulzurrun	M	1948	Spain	Climber	Pamplona, Navarra, Spain	Sculptor	Details Other expeditions
Francisco Jose (Patxi) Fernandez Elizalde	M	1960	Spain	Climber	Isaba, Navarra, Spain	Architect	Details Other expeditions
Tomas Izco Cabezon	M	1958	Spain	Climber	Pamplona, Navarra, Spain	Physician	Details Other expeditions
Miguel Madoz Resano	M	1956	Spain	Climber	Pamplona, Navarra, Spain	Forestry engineer	Details Other expeditions
Mikel Reparaz Chacon	M	1963	Spain	Climber	Pamplona, Navarra, Spain	Forestry engineer	Details Other expeditions
Leonardo San Sabastian Aguirre	M	1956	Spain	Climber	San Sebastian, Guipuzcoa, Spain	Ski instructor	Details Other expeditions
Pedro Jose Tous Roldan	M	1963	Spain	Leader	Pamplona, Navarra, Spain	Mechanic	Details Other expeditions

References

Field	Value
ID	709
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY90307
Reference ID	01
Year	1990
Type	2
Journal	AAJ
Author	Hawley, Elizabeth
Title	-
Publisher	-
Publication Date	1991
Language	-
Citation	65:233-234 (1991)
Yak 94	-
Notes	-

Field	Value
ID	11536
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY90307
Reference ID	02
Year	1990
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12199123304/Asia-Nepal-Cho-Oyu-Autumn-Ascents-and-Attempt
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

2 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY90307	AAJ	Hawley, Elizabeth	-	-	65:233-234 (1991)	-
CHOY90307	-	-	http://publications.americanalpineclub.org/articles/12199123304/Asia-Nepal-Cho-Oyu-Autumn-Ascents-and-Attempt	-	-	-