Cho Oyu | 1999 NW side

A USA expedition to Cho Oyu in 1999 via NW side, led by Jim Litch. Summit reached on 1st October 1999. 18 members recorded.

Expedition Details

Field	Value
ID	3430
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY99318
Peak ID	CHOY
Year	1999
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Jim Litch
Sponsor	Adventure Consultants Cho Oyu Expedition
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	346
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	Australia, Japan, New Zealand, UK
Approach	-
Basecamp Date	1999-09-08
Summit Date	1999-10-01
Summit Time	1110
Summit Days	23
Total Days	27
Termination Date	1999-10-05
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	14
Summit Members	1
Member Deaths	0
Total Hired	4
Summit Hired	0
Hired Deaths	0
No Hired	False
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	True
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(08/09),ABC(09/09,5600m),C1(15/09,6300m),C2(20/09,7000m),Smt(01/10)
Route Notes	Pitched at C3 at 7700m on 21 Sept but not slept in because members not strong enough to carry packs to C3, so with good supply of Sherpas and oxygen and did not want to lose another day. Now avalanche danger and had to wait for snow conditions to get good. Summit party of Litch, Staples, Lapkass and Ang Dorje, Lhakpa Tshering, Chuldim and Tenzing, Tucker, Arayama and Pappas left C2 00:15 hours (NST) on 1 Oct and summit not reached by Pappas, Chuldim and Tenzing while all others to top: Litch and Ang Dorje at 11:10 am, Tucker, Lhakpa at 11:40 am, Staples at 12:00 pm, Arayama and Lapkass at 12:15 pm. Arayama, Staples and Litch last into C2 at 7:00 pm because Arayama a very slow. Litch only one to true top and Sakamoto who was with them did not; [stopped] early 20m below top. Summit Sherpas: Ang Dorje, from Pangboche, - his 4th ascent Lhakpa Tshering, from Khunde - 1st ascent of Cho Oyu, but Everest X3 Litch - 26 Dec 2000 Actually only person from this expedition to reach summit was Litch. All others were on plateau but failed to go beyond this summit plateau.
Accidents	-
Achievement	-
Agency	Asian Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2457232
Year	1999
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	25562
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	02
Peak ID	CHOY
Year	1999
Season	3
First Name	Takao
Last Name	Arayama
Sex	M
Age	0
Birth Date	-
Year of Birth	1935
Calculated Age	63
Citizenship	Japan
Status	Climber
Residence	Kamakura, Kanagawa, Japan
Occupation	Quality management consultant
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)	8000
Summit Date 1	1999-10-01
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	True
O2 Medical	False
O2 Notes	In & above C2 and back to C2
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	2426010
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	takao arayama
Year of Birth	1935
Year	1999
Age at Expedition	64
Role	Member

Field	Value
ID	25563
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	03
Peak ID	CHOY
Year	1999
Season	3
First Name	Rachel
Last Name	Bishop
Sex	F
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	31
Citizenship	UK
Status	Exp Doctor (C1 only)
Residence	Khunde, Khumbu & Seattle, Washington
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)	6300
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	17
HCN	0
Checksum	2437824
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	rachel bishop
Year of Birth	1968
Year	1999
Age at Expedition	31
Role	Member

Field	Value
ID	25564
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	04
Peak ID	CHOY
Year	1999
Season	3
First Name	Tak Leong (Peter)
Last Name	Choi
Sex	M
Age	0
Birth Date	-
Year of Birth	1954
Calculated Age	45
Citizenship	UK
Status	Climber
Residence	Hong Kong
Occupation	Computer software designer
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)	7000
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	True
O2 None	False
O2 Climb	False
O2 Descent	False
O2 Sleep	True
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	2
Summit Term	7
HCN	0
Checksum	2432825
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tak leong (peter) choi
Year of Birth	1954
Year	1999
Age at Expedition	45
Role	Member

Field	Value
ID	25565
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	05
Peak ID	CHOY
Year	1999
Season	3
First Name	Greg
Last Name	Cravatas
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	38
Citizenship	USA
Status	Climber
Residence	Medina, Ohio
Occupation	Police officer
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	1
Summit Term	19
HCN	0
Checksum	2435138
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	greg cravatas
Year of Birth	1960
Year	1999
Age at Expedition	39
Role	Member

Field	Value
ID	25566
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	06
Peak ID	CHOY
Year	1999
Season	3
First Name	Theresann (Teri)
Last Name	Elniski
Sex	F
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	34
Citizenship	USA
Status	Climber
Residence	Larkspur, California
Occupation	Software company president
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	1
Summit Term	19
HCN	0
Checksum	2436877
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	theresann (teri) elniski
Year of Birth	1965
Year	1999
Age at Expedition	34
Role	Member

Field	Value
ID	25567
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	07
Peak ID	CHOY
Year	1999
Season	3
First Name	Andrew
Last Name	Hebson
Sex	M
Age	0
Birth Date	-
Year of Birth	1953
Calculated Age	46
Citizenship	USA
Status	Climber
Residence	Jacksonville, Florida
Occupation	Contractor
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	1
Summit Term	19
HCN	0
Checksum	2432418
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	andrew hebson
Year of Birth	1953
Year	1999
Age at Expedition	46
Role	Member

Field	Value
ID	25568
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	08
Peak ID	CHOY
Year	1999
Season	3
First Name	David
Last Name	Jacks
Sex	M
Age	0
Birth Date	-
Year of Birth	1955
Calculated Age	43
Citizenship	USA
Status	Climber
Residence	Las Vegas, Nevada
Occupation	Sergeant, police department
Leader	False
Deputy	False
Basecamp Only	True
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)	5600
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	ABC only
Necrology	-
Summit Bid	1
Summit Term	19
HCN	0
Checksum	2433297
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	david jacks
Year of Birth	1955
Year	1999
Age at Expedition	44
Role	BC Only

Field	Value
ID	25569
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	09
Peak ID	CHOY
Year	1999
Season	3
First Name	Andrew Atis (Andy)
Last Name	Lapkass
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	41
Citizenship	USA
Status	Climber Guide
Residence	Breckenridge, Colorado
Occupation	Alpine guide & ski patroller
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)	8000
Summit Date 1	1999-10-01
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	Above C2 to top and down to C3 site at 7400m
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	2434160
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	andrew atis (andy) lapkass
Year of Birth	1958
Year	1999
Age at Expedition	41
Role	Member

Field	Value
ID	25570
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	01
Peak ID	CHOY
Year	1999
Season	3
First Name	James Anthony (Jim)
Last Name	Litch
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	39
Citizenship	USA
Status	Leader
Residence	Khunde, Khumbu & Seattle, Washington
Occupation	Physician & alpine guide
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	1999-10-01
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1110
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	346
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	Above C2 to top & down to C3 site at 7400m
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	2434716
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	james anthony (jim) litch
Year of Birth	1959
Year	1999
Age at Expedition	40
Role	Leader

Field	Value
ID	25571
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	10
Peak ID	CHOY
Year	1999
Season	3
First Name	Yukimitsu
Last Name	Okubo
Sex	M
Age	0
Birth Date	-
Year of Birth	1954
Calculated Age	44
Citizenship	Japan
Status	Climber
Residence	Funaba-shi, Chiba, Japan
Occupation	Independent entreprenaur
Leader	False
Deputy	False
Basecamp Only	True
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	Did no climbing
Necrology	-
Summit Bid	1
Summit Term	17
HCN	0
Checksum	2432988
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yukimitsu okubo
Year of Birth	1954
Year	1999
Age at Expedition	45
Role	BC Only

Field	Value
ID	25572
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	11
Peak ID	CHOY
Year	1999
Season	3
First Name	Peter
Last Name	Pappas
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	51
Citizenship	USA
Status	Climber
Residence	Lander, Wyoming
Occupation	Dentist
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)	7800
Summit Date 1	1999-10-01
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	True
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	2430482
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	peter pappas
Year of Birth	1948
Year	1999
Age at Expedition	51
Role	Member

Field	Value
ID	25573
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	12
Peak ID	CHOY
Year	1999
Season	3
First Name	Dean Douglas
Last Name	Staples
Sex	M
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	35
Citizenship	New Zealand
Status	Climber Guide
Residence	Frankton, Queenstown, New Zealand
Occupation	Alpine & skiing 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)	8000
Summit Date 1	1999-10-01
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	Above C2 to top and down to C3 site at 7400m
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	2436411
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	dean douglas staples
Year of Birth	1964
Year	1999
Age at Expedition	35
Role	Member

Field	Value
ID	25574
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	13
Peak ID	CHOY
Year	1999
Season	3
First Name	Karl
Last Name	Tucker
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	31
Citizenship	USA
Status	Climber
Residence	Grand Haven, Michigan
Occupation	Retail shop owner
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)	8000
Summit Date 1	1999-10-01
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	Above C2 to top and down to C3 site at 7400m
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	2437729
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	karl tucker
Year of Birth	1967
Year	1999
Age at Expedition	32
Role	Member

Field	Value
ID	25575
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	14
Peak ID	CHOY
Year	1999
Season	3
First Name	Michael
Last Name	Wille
Sex	M
Age	0
Birth Date	-
Year of Birth	1943
Calculated Age	56
Citizenship	Australia
Status	Climber
Residence	Chelmen, QLD, Australia
Occupation	Corporate executive
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)	6300
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	C1 only
Necrology	-
Summit Bid	1
Summit Term	19
HCN	0
Checksum	2428651
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael wille
Year of Birth	1943
Year	1999
Age at Expedition	56
Role	Member

Field	Value
ID	25576
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	16
Peak ID	CHOY
Year	1999
Season	3
First Name	Chuldim Dorje (Ang Dorje)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	34
Citizenship	Nepal
Status	H-A Worker
Residence	Pangboche, 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	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	8000
Summit Date 1	1999-10-01
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	4th ascent of Cho Oyu
Necrology	-
Summit Bid	4
Summit Term	14
HCN	0
Checksum	2436626
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	chuldim dorje (ang dorje) sherpa
Year of Birth	1964
Year	1999
Age at Expedition	35
Role	Hired

Field	Value
ID	25577
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	17
Peak ID	CHOY
Year	1999
Season	3
First Name	Lhakpa Tshering
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	43
Citizenship	Nepal
Status	H-A Worker
Residence	Khunde, 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	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	False
Personal High Point (m)	8000
Summit Date 1	1999-10-01
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	(....-2003) Died 30 Dec 2003 in Khunde from illness
Summit Bid	4
Summit Term	14
HCN	0
Checksum	-135
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lhakpa tshering sherpa
Year of Birth	-
Year	1999
Age at Expedition	-
Role	Hired

Field	Value
ID	47457
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	15
Peak ID	CHOY
Year	1999
Season	3
First Name	Chuldim (Chuldim Dorje)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	35
Citizenship	Nepal
Status	H-A Worker
Residence	Khumjung, Khumbu
Occupation	High-altitude porter
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
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)	7800
Summit Date 1	1999-10-01
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	14
HCN	0
Checksum	2436262
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	chuldim (chuldim dorje) sherpa
Year of Birth	1963
Year	1999
Age at Expedition	36
Role	Hired

Field	Value
ID	47458
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY99318
Member ID	18
Peak ID	CHOY
Year	1999
Season	3
First Name	Tenzing
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Nepal
Status	H-A Worker
Residence	-
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
Sherpa	True
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)	7800
Summit Date 1	1999-10-01
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	14
HCN	0
Checksum	-135
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tenzing sherpa
Year of Birth	-
Year	1999
Age at Expedition	-
Role	Hired

18 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Takao Arayama	M	1935	Japan	Climber	Kamakura, Kanagawa, Japan	Quality management consultant	Details Other expeditions
Rachel Bishop	F	1968	UK	Exp Doctor (C1 only)	Khunde, Khumbu & Seattle, Washington	Physician	Details Other expeditions
Tak Leong (Peter) Choi	M	1954	UK	Climber	Hong Kong	Computer software designer	Details Other expeditions
Greg Cravatas	M	1960	USA	Climber	Medina, Ohio	Police officer	Details Other expeditions
Theresann (Teri) Elniski	F	1965	USA	Climber	Larkspur, California	Software company president	Details Other expeditions
Andrew Hebson	M	1953	USA	Climber	Jacksonville, Florida	Contractor	Details Other expeditions
David Jacks	M	1955	USA	Climber	Las Vegas, Nevada	Sergeant, police department	Details Other expeditions
Andrew Atis (Andy) Lapkass	M	1958	USA	Climber Guide	Breckenridge, Colorado	Alpine guide & ski patroller	Details Other expeditions
James Anthony (Jim) Litch	M	1959	USA	Leader	Khunde, Khumbu & Seattle, Washington	Physician & alpine guide	Details Other expeditions
Yukimitsu Okubo	M	1954	Japan	Climber	Funaba-shi, Chiba, Japan	Independent entreprenaur	Details Other expeditions
Peter Pappas	M	1948	USA	Climber	Lander, Wyoming	Dentist	Details Other expeditions
Dean Douglas Staples	M	1964	New Zealand	Climber Guide	Frankton, Queenstown, New Zealand	Alpine & skiing guide	Details Other expeditions
Karl Tucker	M	1967	USA	Climber	Grand Haven, Michigan	Retail shop owner	Details Other expeditions
Michael Wille	M	1943	Australia	Climber	Chelmen, QLD, Australia	Corporate executive	Details Other expeditions
Chuldim Dorje (Ang Dorje) Sherpa	M	1964	Nepal	H-A Worker	Pangboche, Khumbu	-	Details Other expeditions
Lhakpa Tshering Sherpa	M	-	Nepal	H-A Worker	Khunde, Khumbu	-	Details Other expeditions
Chuldim (Chuldim Dorje) Sherpa	M	1963	Nepal	H-A Worker	Khumjung, Khumbu	High-altitude porter	Details Other expeditions
Tenzing Sherpa	M	-	Nepal	H-A Worker	-	-	Details Other expeditions

References

Field	Value
ID	5375
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY99318
Reference ID	01
Year	1999
Type	3
Journal	HIGH
Author	-
Title	-
Publisher	-
Publication Date	2000
Language	-
Citation	212:65 (Jul 2000)
Yak 94	-
Notes	-

Field	Value
ID	8106
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY99318
Reference ID	02
Year	1999
Type	5
Journal	-
Author	-
Title	http://www.k2news.com/oct199.htm
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

2 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY99318	HIGH	-	-	-	212:65 (Jul 2000)	-
CHOY99318	-	-	http://www.k2news.com/oct199.htm	-	-	-