Cho Oyu | 1998 NW side from N

A Netherlands expedition to Cho Oyu in 1998 via NW side from N, led by Rene de Bos, Robert Steenmeijer. Summit reached on 20th May 1998. 26 members recorded.

Expedition Details

Field	Value
ID	2614
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY98110
Peak ID	CHOY
Year	1998
Season	1
Host Country	2
Route 1	NW side from N
Route 2	-
Route 3	-
Route 4	-
Nationality	Netherlands
Leaders	Rene de Bos, Robert Steenmeijer
Sponsor	Telfort Cho Oyu Expedition
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	289,292,297-299
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	KTM->Tingri->BC
Basecamp Date	1998-04-29
Summit Date	1998-05-20
Summit Time	-
Summit Days	21
Total Days	37
Termination Date	1998-06-05
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	4
Fixed Rope (m)	0
Total Members	23
Summit Members	7
Member Deaths	0
Total Hired	5
Summit Hired	3
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(29/04,4800m),Intermed(02/05,5200m),ABC(03/05,5400m),C1(06/05,6000m),Deposit(6400m),C2(13/05,6750m),C3(19/05,7100m),C4(27/05,7400m),Smt(20,22,29,31/05,01/06)
Route Notes	ABC 1 hour below most others' camp. 1st summit bid on 20th May from C3 by Staartjes-Koomen, de Bos, Wesker, Dingemans, Nawang Chambi and Kanchen Dawa Sherpa; left C3 at 2:00 am but only Staartjes-Koomen and Nawang reached top where they saw Everest; others turned back at 7800-7900m except De Bos, at 7700-7800m, fearing they were too slow and would summit too late (also tired). Summiters returned to C3 at 4:00 pm. Next summit bid on 22nd from C3 at 2:00 am were Van der Meulen of Dutch Xixa, de Jong, Terwee, Van Dijk, Van Hout and Sherpas Ang Jangbu and Chewang Rinzen; Van Dijk turned back at 7500m tired and Van Hout to 7900m tired; on top at 10:00 am and in C3 1:15 pm. Next attempt tired and too slow and down to deposit camp at 6400m to sleep. 29th Smets and Van Berlo without Sherpas up from C4 at 2:15 am, Van Berlo to 7500m (very tired) Smets at top 11:30 am (saw Everest) and down to C3. 30th from C4 Koning, Dingemans without Sherpas at 3:00 am and turned back because of much new snow at 7500m; Dingemans stayed in C4 and Koning to ABC. 31st de Bos, Dingemans, Wesker (Wesker from C3) plus Kanchen Dawa and Ang Zangbu (Nawang Chokleg); on top Dingemans at 10:45 am: Ang Zangbu at 10:15 am, de Bos to 7500m very cold and turned back and Kanchen Dawa with him, Wesker back from 7700m also cold and down to ABC (17 hours from C3 to 7700m to ABC). 1st June Bergevoet & Robert Steenmeijer left C4 at 5:00 am and on top only Bergevoet at 11:30 am while Steenmeijer back from 8050m tired and too slow; both slept in C3; no Sherpas with them. Sherpa summiters: Nawang Chumbi, Khumjung, 9/12/66, his 1st 8000er Chhong Ringe (Chewang Rinsen), 5/3/64, Rolwaling, summited Cho Oyu Oct 1994 Nawang Chokleg (Ang Zangbu), 1958, Thami, summited Cho Oyu May 1996 * A member of Dutch Xixabangma expedition, Hans Van der Meulen, unexpectedly turned up at ABC, "paid us some money," and climbed to top on 22 May with 2 members and Sherpa from this expedition. He arrived at ABC on 17 May, went to C2 on 19th, to C2 on 20th, C2 on 21st and summit on 22nd. His biodata given on page 2 of this expedition's members list.
Accidents	Nooy pulmonary edema and left 18-19/5; (other members drifted off as wished)
Achievement	-
Agency	Asian Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2456732
Year	1998
Summit Success	True
O2 Summary	None
Route (lowercase)	nw side from n

Members

Field	Value
ID	6281
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	03
Peak ID	CHOY
Year	1998
Season	1
First Name	Pedro
Last Name	Bergevoet
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	31
Citizenship	Netherlands
Status	Climber
Residence	Delft, Netherlands
Occupation	Computer 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	1998-06-01
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	299
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	2437234
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	pedro bergevoet
Year of Birth	1966
Year	1998
Age at Expedition	32
Role	Member

Field	Value
ID	6282
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	04
Peak ID	CHOY
Year	1998
Season	1
First Name	Marjolijn
Last Name	Blans
Sex	M
Age	0
Birth Date	-
Year of Birth	1970
Calculated Age	28
Citizenship	Netherlands
Status	Exp Doctor
Residence	Den Bosch, Netherlands
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	2438556
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	marjolijn blans
Year of Birth	1970
Year	1998
Age at Expedition	28
Role	Member

Field	Value
ID	6283
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	01
Peak ID	CHOY
Year	1998
Season	1
First Name	Rene
Last Name	De Bos
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	39
Citizenship	Netherlands
Status	Leader
Residence	Hague, Netherlands
Occupation	Tour operator
Leader	True
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)	7750
Summit Date 1	1998-05-20
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	2434533
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	rene de bos
Year of Birth	1959
Year	1998
Age at Expedition	39
Role	Leader

Field	Value
ID	6284
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	05
Peak ID	CHOY
Year	1998
Season	1
First Name	Yde
Last Name	De Jong
Sex	M
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	34
Citizenship	Netherlands
Status	Climber
Residence	Leiden, Netherlands
Occupation	Psychologist
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	1998-05-22
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	292
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	2436392
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yde de jong
Year of Birth	1964
Year	1998
Age at Expedition	34
Role	Member

Field	Value
ID	6285
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	06
Peak ID	CHOY
Year	1998
Season	1
First Name	Arjan
Last Name	Dingemans
Sex	M
Age	0
Birth Date	-
Year of Birth	1971
Calculated Age	26
Citizenship	Netherlands
Status	Climber
Residence	Groningen, Netherlands
Occupation	Medical student
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	1998-05-31
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1045
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	298
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	2439128
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	arjan dingemans
Year of Birth	1971
Year	1998
Age at Expedition	27
Role	Member

Field	Value
ID	6286
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	07
Peak ID	CHOY
Year	1998
Season	1
First Name	Winfred Martinus (Winnie)
Last Name	Koning
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	42
Citizenship	Netherlands
Status	Climber
Residence	Haarlem, Netherlands
Occupation	Physiotherapist
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)	7500
Summit Date 1	1998-05-30
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	4
HCN	0
Checksum	2433430
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	winfred martinus (winnie) koning
Year of Birth	1956
Year	1998
Age at Expedition	42
Role	Member

Field	Value
ID	6287
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	13
Peak ID	CHOY
Year	1998
Season	1
First Name	Katja
Last Name	Staartjes-Koomen
Sex	F
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	35
Citizenship	Netherlands
Status	Climber
Residence	l'Habit, France
Occupation	Food technologist
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	1998-05-20
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	289
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	2435975
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	katja staartjes-koomen
Year of Birth	1963
Year	1998
Age at Expedition	35
Role	Member

Field	Value
ID	6288
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	08
Peak ID	CHOY
Year	1998
Season	1
First Name	Paul
Last Name	Kwakkenbos
Sex	M
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	35
Citizenship	Netherlands
Status	Climber
Residence	Woerden, Netherlands
Occupation	Corporate communications manager
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	2435964
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	paul kwakkenbos
Year of Birth	1963
Year	1998
Age at Expedition	35
Role	Member

Field	Value
ID	6289
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	09
Peak ID	CHOY
Year	1998
Season	1
First Name	Martin
Last Name	Laban
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	37
Citizenship	Netherlands
Status	Climber
Residence	Amsterdam, Netherlands
Occupation	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	2435136
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	martin laban
Year of Birth	1960
Year	1998
Age at Expedition	38
Role	Member

Field	Value
ID	6290
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	10
Peak ID	CHOY
Year	1998
Season	1
First Name	Hendrikus (Henk)
Last Name	Nooy
Sex	M
Age	0
Birth Date	-
Year of Birth	1941
Calculated Age	56
Citizenship	Netherlands
Status	Climber
Residence	Edam, Netherlands
Occupation	Sales manager
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	True
Injury Date	-
Injury Time	-
Injury Type	1
Injury Height (m)	0
Death Notes	Pulmonary edema
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	6
HCN	0
Checksum	2428092
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	hendrikus (henk) nooy
Year of Birth	1941
Year	1998
Age at Expedition	57
Role	Member

Field	Value
ID	6291
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	11
Peak ID	CHOY
Year	1998
Season	1
First Name	Alexander O. (Lex)
Last Name	Ottervanger
Sex	M
Age	0
Birth Date	-
Year of Birth	1957
Calculated Age	40
Citizenship	Netherlands
Status	Climber
Residence	Leiderdorp, Netherlands
Occupation	Systems manager
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	2433989
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	alexander o. (lex) ottervanger
Year of Birth	1957
Year	1998
Age at Expedition	41
Role	Member

Field	Value
ID	6292
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	12
Peak ID	CHOY
Year	1998
Season	1
First Name	Antonius
Last Name	Smets
Sex	M
Age	0
Birth Date	-
Year of Birth	1949
Calculated Age	48
Citizenship	Netherlands
Status	Climber
Residence	Bladel, Netherlands
Occupation	Metal worker
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	1998-05-29
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	297
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	2431064
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	antonius smets
Year of Birth	1949
Year	1998
Age at Expedition	49
Role	Member

Field	Value
ID	6293
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	02
Peak ID	CHOY
Year	1998
Season	1
First Name	Robert
Last Name	Steenmeijer
Sex	M
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	34
Citizenship	Netherlands
Status	Climbing Leader
Residence	Amsterdam, Netherlands
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	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	8050
Summit Date 1	1998-06-01
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	2436202
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	robert steenmeijer
Year of Birth	1963
Year	1998
Age at Expedition	35
Role	Deputy

Field	Value
ID	6294
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	14
Peak ID	CHOY
Year	1998
Season	1
First Name	Lodewijk (Louis)
Last Name	Strik
Sex	M
Age	0
Birth Date	-
Year of Birth	1951
Calculated Age	46
Citizenship	Netherlands
Status	Climber
Residence	Ochten, Netherlands
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)	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	2431946
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lodewijk (louis) strik
Year of Birth	1951
Year	1998
Age at Expedition	47
Role	Member

Field	Value
ID	6295
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	15
Peak ID	CHOY
Year	1998
Season	1
First Name	Sander
Last Name	Terwee
Sex	M
Age	0
Birth Date	-
Year of Birth	1969
Calculated Age	29
Citizenship	Netherlands
Status	Climber
Residence	Amsterdam, Netherlands
Occupation	Surveyor
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	1998-05-22
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	292
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	2438209
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	sander terwee
Year of Birth	1969
Year	1998
Age at Expedition	29
Role	Member

Field	Value
ID	6296
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	16
Peak ID	CHOY
Year	1998
Season	1
First Name	Erik Jan
Last Name	Van Bergen
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	29
Citizenship	Netherlands
Status	Climber
Residence	Leidschendam, Netherlands
Occupation	Investment manager
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	2437959
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	erik jan van bergen
Year of Birth	1968
Year	1998
Age at Expedition	30
Role	Member

Field	Value
ID	6297
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	17
Peak ID	CHOY
Year	1998
Season	1
First Name	Martinus (Marcel)
Last Name	Van Berlo
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	29
Citizenship	Netherlands
Status	Climber
Residence	Amstelveen, Netherlands
Occupation	Banker
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	1998-05-29
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	2437940
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	martinus (marcel) van berlo
Year of Birth	1968
Year	1998
Age at Expedition	30
Role	Member

Field	Value
ID	6298
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	22
Peak ID	CHOY
Year	1998
Season	1
First Name	Marnix
Last Name	Van der Werf
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	30
Citizenship	Netherlands
Status	Climber
Residence	Utrecht, Netherlands
Occupation	Attorney
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	2437745
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	marnix van der werf
Year of Birth	1967
Year	1998
Age at Expedition	31
Role	Member

Field	Value
ID	6299
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	18
Peak ID	CHOY
Year	1998
Season	1
First Name	Harry
Last Name	Van Dijk
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	49
Citizenship	Netherlands
Status	Climber
Residence	Zwolle, Netherlands
Occupation	Sales manager
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	1998-05-22
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	2430843
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	harry van dijk
Year of Birth	1948
Year	1998
Age at Expedition	50
Role	Member

Field	Value
ID	6300
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	19
Peak ID	CHOY
Year	1998
Season	1
First Name	Stefan
Last Name	Van Egten
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	31
Citizenship	Netherlands
Status	Climber
Residence	Amersfoort, Utrecht, Netherlands
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)	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	2437488
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	stefan van egten
Year of Birth	1967
Year	1998
Age at Expedition	31
Role	Member

Field	Value
ID	6301
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	20
Peak ID	CHOY
Year	1998
Season	1
First Name	Lucie
Last Name	Van Hout
Sex	F
Age	0
Birth Date	-
Year of Birth	1954
Calculated Age	44
Citizenship	Netherlands
Status	Climber
Residence	Son, Netherlands
Occupation	Secretary
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)	7900
Summit Date 1	1998-05-22
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	2432778
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lucie van hout
Year of Birth	1954
Year	1998
Age at Expedition	44
Role	Member

Field	Value
ID	6302
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	23
Peak ID	CHOY
Year	1998
Season	1
First Name	Evert
Last Name	Wesker
Sex	M
Age	0
Birth Date	-
Year of Birth	1952
Calculated Age	45
Citizenship	Netherlands
Status	Climber
Residence	Amsterdam, Netherlands
Occupation	Research 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)	7850
Summit Date 1	1998-05-20
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	13
HCN	0
Checksum	2432228
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	evert wesker
Year of Birth	1952
Year	1998
Age at Expedition	46
Role	Member

Field	Value
ID	6303
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	21
Peak ID	CHOY
Year	1998
Season	1
First Name	Henri Willem (Hans)
Last Name	Van der Meulen
Sex	M
Age	0
Birth Date	-
Year of Birth	1953
Calculated Age	45
Citizenship	Netherlands
Status	Climber
Residence	Leersum, Netherlands
Occupation	Outdoor activities specialist
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	1998-05-22
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	292
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	2432352
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	henri willem (hans) van der meulen
Year of Birth	1953
Year	1998
Age at Expedition	45
Role	Member

Field	Value
ID	6304
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	25
Peak ID	CHOY
Year	1998
Season	1
First Name	Nanda Dorje (Naga Dorje, Nanga)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	31
Citizenship	Nepal
Status	H-A Worker
Residence	Khumjung, Khumbu
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	1998-05-20
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	289
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	1st 8000er; aka Nawang Chumbi
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437362
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nanda dorje (naga dorje, nanga) sherpa
Year of Birth	1966
Year	1998
Age at Expedition	32
Role	Hired

Field	Value
ID	6305
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	24
Peak ID	CHOY
Year	1998
Season	1
First Name	Chhong Ringee (Chewang Rinzen)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	34
Citizenship	Nepal
Status	H-A Worker
Residence	Beding, Dolakha
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	1998-05-22
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1000
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	292
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	aka Chewang Rinzen, Tshong Ringee, Tshong Rinzen; 2nd ascent of Cho Oyu
Necrology	(1964-2002) Died 30 Apr 2002 on Cho Oyu from unknown causes
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2436334
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	chhong ringee (chewang rinzen) sherpa
Year of Birth	1964
Year	1998
Age at Expedition	34
Role	Hired

Field	Value
ID	6306
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY98110
Member ID	26
Peak ID	CHOY
Year	1998
Season	1
First Name	Nawang Chokleg (Ang Zangbu)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	39
Citizenship	Nepal
Status	H-A Worker
Residence	Thami, Khumbu
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	1998-05-31
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1045
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	298
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	2nd ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	-2120
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nawang chokleg (ang zangbu) sherpa
Year of Birth	1958
Year	1998
Age at Expedition	40
Role	Hired

26 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Pedro Bergevoet	M	1966	Netherlands	Climber	Delft, Netherlands	Computer engineer	Details Other expeditions
Marjolijn Blans	M	1970	Netherlands	Exp Doctor	Den Bosch, Netherlands	Physician	Details Other expeditions
Rene De Bos	M	1959	Netherlands	Leader	Hague, Netherlands	Tour operator	Details Other expeditions
Yde De Jong	M	1964	Netherlands	Climber	Leiden, Netherlands	Psychologist	Details Other expeditions
Arjan Dingemans	M	1971	Netherlands	Climber	Groningen, Netherlands	Medical student	Details Other expeditions
Winfred Martinus (Winnie) Koning	M	1956	Netherlands	Climber	Haarlem, Netherlands	Physiotherapist	Details Other expeditions
Katja Staartjes-Koomen	F	1963	Netherlands	Climber	l'Habit, France	Food technologist	Details Other expeditions
Paul Kwakkenbos	M	1963	Netherlands	Climber	Woerden, Netherlands	Corporate communications manager	Details Other expeditions
Martin Laban	M	1960	Netherlands	Climber	Amsterdam, Netherlands	Engineer	Details Other expeditions
Hendrikus (Henk) Nooy	M	1941	Netherlands	Climber	Edam, Netherlands	Sales manager	Details Other expeditions
Alexander O. (Lex) Ottervanger	M	1957	Netherlands	Climber	Leiderdorp, Netherlands	Systems manager	Details Other expeditions
Antonius Smets	M	1949	Netherlands	Climber	Bladel, Netherlands	Metal worker	Details Other expeditions
Robert Steenmeijer	M	1963	Netherlands	Climbing Leader	Amsterdam, Netherlands	Alpine guide	Details Other expeditions
Lodewijk (Louis) Strik	M	1951	Netherlands	Climber	Ochten, Netherlands	Computer programmer	Details Other expeditions
Sander Terwee	M	1969	Netherlands	Climber	Amsterdam, Netherlands	Surveyor	Details Other expeditions
Erik Jan Van Bergen	M	1968	Netherlands	Climber	Leidschendam, Netherlands	Investment manager	Details Other expeditions
Martinus (Marcel) Van Berlo	M	1968	Netherlands	Climber	Amstelveen, Netherlands	Banker	Details Other expeditions
Marnix Van der Werf	M	1967	Netherlands	Climber	Utrecht, Netherlands	Attorney	Details Other expeditions
Harry Van Dijk	M	1948	Netherlands	Climber	Zwolle, Netherlands	Sales manager	Details Other expeditions
Stefan Van Egten	M	1967	Netherlands	Climber	Amersfoort, Utrecht, Netherlands	Alpine guide	Details Other expeditions
Lucie Van Hout	F	1954	Netherlands	Climber	Son, Netherlands	Secretary	Details Other expeditions
Evert Wesker	M	1952	Netherlands	Climber	Amsterdam, Netherlands	Research engineer	Details Other expeditions
Henri Willem (Hans) Van der Meulen	M	1953	Netherlands	Climber	Leersum, Netherlands	Outdoor activities specialist	Details Other expeditions
Nanda Dorje (Naga Dorje, Nanga) Sherpa	M	1966	Nepal	H-A Worker	Khumjung, Khumbu	-	Details Other expeditions
Chhong Ringee (Chewang Rinzen) Sherpa	M	1964	Nepal	H-A Worker	Beding, Dolakha	-	Details Other expeditions
Nawang Chokleg (Ang Zangbu) Sherpa	M	1958	Nepal	H-A Worker	Thami, Khumbu	-	Details Other expeditions

References

Field	Value
ID	7802
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY98110
Reference ID	01
Year	1998
Type	5
Journal	-
Author	-
Title	http://www.katjastaartjes.nl
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

1 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY98110	-	-	http://www.katjastaartjes.nl	-	-	-