Cho Oyu | 2011 NW side

A Belgium expedition to Cho Oyu in 2011 via NW side, led by Urbain Lenaerts. Summit reached on 3rd October 2011. 8 members recorded.

Expedition Details

Field	Value
ID	7417
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY11339
Peak ID	CHOY
Year	2011
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Belgium
Leaders	Urbain Lenaerts
Sponsor	Belgium Cho Oyu 2011
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	-
Approach	-
Basecamp Date	2011-09-08
Summit Date	2011-10-03
Summit Time	1100
Summit Days	25
Total Days	28
Termination Date	2011-10-06
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	6
Summit Members	2
Member Deaths	0
Total Hired	3
Summit Hired	0
Hired Deaths	0
No Hired	False
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(08/09,4900m),IC(5200m),ABC(10/09,5700m),C1(16/09,6400m),C2(20/09,7100m),C3(02/10,7550m),Smt(03/10)
Route Notes	Route details given on team web site at http://bergstijgerskempen.be/ChoOyu/deelnemers.html (in Dutch) Hired: Ngima Dorje Tamang, 03/12/1973, Gorakhani-7 Solukhumbu Pemba Tamang, 15/04/73, Taksindu-3, Solukhumbu
Accidents	-
Achievement	-
Agency	Adventure Zambuling Treks
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2461449
Year	2011
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	55112
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	02
Peak ID	CHOY
Year	2011
Season	3
First Name	Peter
Last Name	Croonenborghs
Sex	M
Age	0
Birth Date	-
Year of Birth	1957
Calculated Age	54
Citizenship	Belgium
Status	Climber
Residence	Herselt, Antwerpen, Belgium
Occupation	Clerk
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	False
High Point (m)	False
Personal High Point (m)	8100
Summit Date 1	2011-10-03
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	True
O2 None	False
O2 Climb	True
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	2434104
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	peter croonenborghs
Year of Birth	1957
Year	2011
Age at Expedition	54
Role	Member

Field	Value
ID	56869
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	01
Peak ID	CHOY
Year	2011
Season	3
First Name	Urbain Franciscus M.
Last Name	Lenaerts
Sex	M
Age	0
Birth Date	-
Year of Birth	1962
Calculated Age	49
Citizenship	Belgium
Status	Leader
Residence	-
Occupation	-
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2011-10-03
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1130
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	True
O2 None	False
O2 Climb	True
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	2435736
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	urbain franciscus m. lenaerts
Year of Birth	1962
Year	2011
Age at Expedition	49
Role	Leader

Field	Value
ID	56870
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	06
Peak ID	CHOY
Year	2011
Season	3
First Name	Rudi Anna A.
Last Name	Van de Poel
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	51
Citizenship	Belgium
Status	Climber
Residence	-
Occupation	-
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2011-10-03
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1100
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	True
O2 None	False
O2 Climb	True
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	2434861
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	rudi anna a. van de poel
Year of Birth	1959
Year	2011
Age at Expedition	52
Role	Member

Field	Value
ID	56871
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	03
Peak ID	CHOY
Year	2011
Season	3
First Name	Lodewijk Maria J. (Ludo)
Last Name	De Ceulaer
Sex	M
Age	0
Birth Date	-
Year of Birth	1954
Calculated Age	57
Citizenship	Belgium
Status	Climber
Residence	-
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	False
High Point (m)	False
Personal High Point (m)	8100
Summit Date 1	2011-10-03
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	True
O2 None	False
O2 Climb	True
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	2432976
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lodewijk maria j. (ludo) de ceulaer
Year of Birth	1954
Year	2011
Age at Expedition	57
Role	Member

Field	Value
ID	56872
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	04
Peak ID	CHOY
Year	2011
Season	3
First Name	Vincent
Last Name	De Waele
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	64
Citizenship	Belgium
Status	Climber
Residence	-
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	False
High Point (m)	False
Personal High Point (m)	6700
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	6
HCN	0
Checksum	-12
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	vincent de waele
Year of Birth	-
Year	2011
Age at Expedition	-
Role	Member

Field	Value
ID	57203
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	07
Peak ID	CHOY
Year	2011
Season	3
First Name	Ngima Dorje
Last Name	Tamang
Sex	M
Age	0
Birth Date	-
Year of Birth	1973
Calculated Age	37
Citizenship	Nepal
Status	H-A Worker
Residence	Gorakhani-7, Solukhumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	False
Personal High Point (m)	7500
Summit Date 1	-
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	3
Summit Term	9
HCN	0
Checksum	2440035
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ngima dorje tamang
Year of Birth	1973
Year	2011
Age at Expedition	38
Role	Hired

Field	Value
ID	57204
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	08
Peak ID	CHOY
Year	2011
Season	3
First Name	Pemba
Last Name	Tamang
Sex	M
Age	0
Birth Date	-
Year of Birth	1973
Calculated Age	38
Citizenship	Nepal
Status	H-A Worker
Residence	Taksindu, Solukhumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	False
Personal High Point (m)	8100
Summit Date 1	2011-10-03
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	14
HCN	0
Checksum	2439849
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pemba tamang
Year of Birth	1973
Year	2011
Age at Expedition	38
Role	Hired

Field	Value
ID	59730
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY11339
Member ID	05
Peak ID	CHOY
Year	2011
Season	3
First Name	Etienne
Last Name	Flore
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	63
Citizenship	Belgium
Status	Climber
Residence	Lochristi, Belgium
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	False
High Point (m)	False
Personal High Point (m)	6400
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	7
HCN	0
Checksum	-12
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	etienne flore
Year of Birth	-
Year	2011
Age at Expedition	-
Role	Member

8 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Peter Croonenborghs	M	1957	Belgium	Climber	Herselt, Antwerpen, Belgium	Clerk	Details Other expeditions
Urbain Franciscus M. Lenaerts	M	1962	Belgium	Leader	-	-	Details Other expeditions
Rudi Anna A. Van de Poel	M	1959	Belgium	Climber	-	-	Details Other expeditions
Lodewijk Maria J. (Ludo) De Ceulaer	M	1954	Belgium	Climber	-	-	Details Other expeditions
Vincent De Waele	M	-	Belgium	Climber	-	-	Details Other expeditions
Ngima Dorje Tamang	M	1973	Nepal	H-A Worker	Gorakhani-7, Solukhumbu	-	Details Other expeditions
Pemba Tamang	M	1973	Nepal	H-A Worker	Taksindu, Solukhumbu	-	Details Other expeditions
Etienne Flore	M	-	Belgium	Climber	Lochristi, Belgium	-	Details Other expeditions

References

Field	Value
ID	8608
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY11339
Reference ID	01
Year	2011
Type	5
Journal	-
Author	-
Title	http://fr.belclimb.be/news-details.asp?t=trois-belges-reussissent-un-8000-ce-mardi&id=2326&sid=5
Publisher	-
Publication Date	-
Language	French
Citation	-
Yak 94	-
Notes	-

Field	Value
ID	8609
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY11339
Reference ID	02
Year	2011
Type	5
Journal	-
Author	-
Title	http://bergstijgerskempen.be/ChoOyu/deelnemers.html
Publisher	-
Publication Date	-
Language	Dutch
Citation	-
Yak 94	-
Notes	-

2 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY11339	-	-	http://fr.belclimb.be/news-details.asp?t=trois-belges-reussissent-un-8000-ce-mardi&id=2326&sid=5	-	-	-
CHOY11339	-	-	http://bergstijgerskempen.be/ChoOyu/deelnemers.html	-	-	-