Cho Oyu | 1983 W Ridge-W Face (Messner 1983 rte)

A Italy expedition to Cho Oyu in 1983 via W Ridge-W Face (Messner 1983 rte), led by Reinhold Messner. Summit reached on 5th May 1983. 3 members recorded.

Expedition Details

Field	Value
ID	1514
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY83101
Peak ID	CHOY
Year	1983
Season	1
Host Country	1
Route 1	W Ridge-W Face (Messner 1983 rte)
Route 2	-
Route 3	-
Route 4	-
Nationality	Italy
Leaders	Reinhold Messner
Sponsor	German Cho Oyu Expedition
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	4th
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	W Germany
Approach	Lukla->Nangpa La
Basecamp Date	1983-04-26
Summit Date	1983-05-05
Summit Time	-
Summit Days	9
Total Days	12
Termination Date	1983-05-08
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	0
Fixed Rope (m)	0
Total Members	3
Summit Members	3
Member Deaths	0
Total Hired	3
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(26/04,5200m),ABC(29/04,5600m),Biv1(02/05,6000m),Biv2(03/05,6600m),Biv3(04/05,7100m),Smt(05/05)
Route Notes	Storm strong wind and clouds from southwest. Summit huge plateau with several points, highest of which is at southeast plateau. Spent night before and after summit in 3rd bivouac, night of 6 May back in ABC and 7 May in BC. True southwest ridge is in China, so did a ridge on the southwest side to high point part of face. Partly technically difficult from 6400m to 7400m; steep snow and ice fields and some rock.
Accidents	None
Achievement	-
Agency	-
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2451088
Year	1983
Summit Success	True
O2 Summary	None
Route (lowercase)	w ridge-w face (messner 1983 rte)

Members

Field	Value
ID	4192
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY83101
Member ID	02
Peak ID	CHOY
Year	1983
Season	1
First Name	Michel
Last Name	Dacher
Sex	M
Age	0
Birth Date	-
Year of Birth	1933
Calculated Age	49
Citizenship	W Germany
Status	Climber
Residence	Peiting, Bavaria, W Germany
Occupation	Electrical 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	1983-05-05
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	4
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	2425311
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michel dacher
Year of Birth	1933
Year	1983
Age at Expedition	50
Role	Member

Field	Value
ID	4193
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY83101
Member ID	03
Peak ID	CHOY
Year	1983
Season	1
First Name	Johann (Hans)
Last Name	Kammerlander
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	26
Citizenship	Italy
Status	Climber
Residence	Sand in Taufers, Bolzano, Italy
Occupation	Alpinist
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	1983-05-05
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	4
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	2433796
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	johann (hans) kammerlander
Year of Birth	1956
Year	1983
Age at Expedition	27
Role	Member

Field	Value
ID	4194
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY83101
Member ID	01
Peak ID	CHOY
Year	1983
Season	1
First Name	Reinhold
Last Name	Messner
Sex	M
Age	0
Birth Date	-
Year of Birth	1944
Calculated Age	38
Citizenship	Italy
Status	Leader
Residence	Villnoss, Bolzano, Italy
Occupation	Alpinist & author of climbing books
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	1983-05-05
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	4
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	2429345
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	reinhold messner
Year of Birth	1944
Year	1983
Age at Expedition	39
Role	Leader

3 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Michel Dacher	M	1933	W Germany	Climber	Peiting, Bavaria, W Germany	Electrical engineer	Details Other expeditions
Johann (Hans) Kammerlander	M	1956	Italy	Climber	Sand in Taufers, Bolzano, Italy	Alpinist	Details Other expeditions
Reinhold Messner	M	1944	Italy	Leader	Villnoss, Bolzano, Italy	Alpinist & author of climbing books	Details Other expeditions

References

Field	Value
ID	2053
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY83101
Reference ID	01
Year	1983
Type	2
Journal	AAJ
Author	Cheney, Michael J. & Hawley, Elizabeth
Title	-
Publisher	-
Publication Date	1984
Language	-
Citation	58:243 (1984)
Yak 94	-
Notes	-

Field	Value
ID	3393
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY83101
Reference ID	02
Year	1983
Type	1
Journal	-
Author	Messner, Reinhold
Title	3x8000
Publisher	Herbig, Munich
Publication Date	1983
Language	German
Citation	-
Yak 94	M343
Notes	-

Field	Value
ID	4070
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY83101
Reference ID	03
Year	1983
Type	3
Journal	MM
Author	-
Title	-
Publisher	-
Publication Date	1983
Language	-
Citation	92:9 (Jul 1983)
Yak 94	-
Notes	-

Field	Value
ID	7161
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY83101
Reference ID	04
Year	1983
Type	1
Journal	-
Author	Kammerlander, Hans
Title	Absteig zum Erfolg
Publisher	Rudolf Rother, Munich
Publication Date	1987
Language	German
Citation	-
Yak 94	K21
Notes	-

Field	Value
ID	12626
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY83101
Reference ID	05
Year	1983
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12198424301/Asia-Nepal-Cho-Oyu
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

5 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY83101	AAJ	Cheney, Michael J. & Hawley, Elizabeth	-	-	58:243 (1984)	-
CHOY83101	-	Messner, Reinhold	3x8000	Herbig, Munich	-	M343
CHOY83101	MM	-	-	-	92:9 (Jul 1983)	-
CHOY83101	-	Kammerlander, Hans	Absteig zum Erfolg	Rudolf Rother, Munich	-	K21
CHOY83101	-	-	http://publications.americanalpineclub.org/articles/12198424301/Asia-Nepal-Cho-Oyu	-	-	-