Cho Oyu | 1987 W Ridge-W Face from N

A France expedition to Cho Oyu in 1987 via W Ridge-W Face from N, led by Jean Clemenson. 2 members recorded.

Expedition Details

Field	Value
ID	2685
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY87104
Peak ID	CHOY
Year	1987
Season	1
Host Country	2
Route 1	W Ridge-W Face from N
Route 2	-
Route 3	-
Route 4	-
Nationality	France
Leaders	Jean Clemenson
Sponsor	-
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	-
Approach	From Tingri
Basecamp Date	-
Summit Date	-
Summit Time	-
Summit Days	0
Total Days	0
Termination Date	-
Termination Reason	4
Termination Notes	Abandoned at 6500m
High Point (m)	6500
Traverse	False
Ski	False
Paraglide	False
Camps	0
Fixed Rope (m)	0
Total Members	2
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	False
O2 Unknown	False
Other Summits	-
Campsites	BC,xxx(6500m)
Route Notes	Cho Oyu - Spring 1987 An unauthorized attempt on Cho Oyu was made this spring 1987 by two Frenchman, Jean Clemenson and another whose name Mauricio Purto (leader of Chilean exp) doesn't know. They left their equipment at base of SW Ridge (Chilean's C2) when bad weather stopped their climb and they descended. Told Chileans they could use their supplies if Frenchman didn't come back for it in 15 days and they did not come back. Did not go higher than C2 at 5800m. No Sherpas with them. (I met Clemenson in April - said he'd been trekking) Regis Maincent, 28, Chamonix Jean Clemenson Messner's route on Cho Oyu reached 6500m - deep snow and exhaustion and blizzard defeated them. KTM/Kodari Rd/Tingri W/Yak driver and yak party to Cho Oyu/Nangpa La/mtn/ Thami/KTM. 16-20 days Tingri W/Thami including several days shuttling loads after yak driver abandoned them. Arrived Thami 13 April when Thompson met them there.
Accidents	-
Achievement	-
Agency	-
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	5677
Year	1987
Summit Success	False
O2 Summary	None
Route (lowercase)	w ridge-w face from n

Members

Field	Value
ID	25477
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY87104
Member ID	02
Peak ID	CHOY
Year	1987
Season	1
First Name	Regis
Last Name	Maincent
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	27
Citizenship	France
Status	Climber
Residence	Chamonix, Haute-Savoie, France
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	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	6500
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	3
HCN	0
Checksum	2434575
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	regis maincent
Year of Birth	1959
Year	1987
Age at Expedition	28
Role	Member

Field	Value
ID	25478
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY87104
Member ID	01
Peak ID	CHOY
Year	1987
Season	1
First Name	Jean Robert
Last Name	Clemenson
Sex	M
Age	0
Birth Date	-
Year of Birth	1938
Calculated Age	49
Citizenship	France
Status	Climber
Residence	Argentiere, Haute-Savoie, France
Occupation	-
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)	6500
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	3
HCN	0
Checksum	2426895
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jean robert clemenson
Year of Birth	1938
Year	1987
Age at Expedition	49
Role	Member

2 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Regis Maincent	M	1959	France	Climber	Chamonix, Haute-Savoie, France	Alpine guide	Details Other expeditions
Jean Robert Clemenson	M	1938	France	Climber	Argentiere, Haute-Savoie, France	-	Details Other expeditions

References

0 recorded references.