Cho Oyu | 2003 NW side

A USA expedition to Cho Oyu in 2003 via NW side, led by Mike Hamill. Summit reached on 26th September 2003. 21 members recorded.

Expedition Details

Field	Value
ID	4462
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY03318
Peak ID	CHOY
Year	2003
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Mike Hamill
Sponsor	International Mountain Guides (IMG) Cho Oyu Expedition 2003
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	Spain
Approach	KTM->Lhasa->Shigatse->Tingri->BC
Basecamp Date	2003-08-31
Summit Date	2003-09-26
Summit Time	1000
Summit Days	26
Total Days	29
Termination Date	2003-09-29
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	100
Total Members	16
Summit Members	4
Member Deaths	0
Total Hired	5
Summit Hired	3
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(31/08,4500m),ABC(04/09,5200m),C1(09/09,6200m),C2(15/09,7000m),C3(25/09,7500m),Smt(26/09)
Route Notes	ABC - Goodwin on 5 Sept altitude sickness, stayed in ABC C1 - to ABC on 10-11 Sept C2 - to ABC on 16 Sept C3 - 27 Sept in C2. First team to top on this date. Started from C3 at 2 am NST. Summit at: Christoffersen - 10:00 at Summit, on top 30 min, in C2 2 pm Ford, Hamill, Olito and 3 Sherpas - 11:00 at summit, on top 30 min, in C2 3:30 pm Met 3 French and 3 Sherpas going up at 11:30. Himalayan Experiences and Japanese fixed lines before and after them. Burd, Goodwin and Piedra left BC on 20 Sept. Weinberg left on 25 Sept. Sherpa summiters: Ang Pasang, Pangboche, 11/2/66, Everest X3, Cho Oyu X2 Danuru (Dawa Nuru) Sherpa, 26 Phu Nuru Sherpa, 24, Everest X1, Cho Oyu X3 Booher - C2 15 Sept Burd - C1 10 Sept, BC 20 Sept Adam - Summit 26 Sept at 10:00 Darnow - C2 15 Sept Ford - Summit 26 Sept at 11:00 Goodwin - ABC 05 Sept, left BC on 20 Sept Hamill - Summit 26 Sept about 11:00 Harter - C1 on 10 Sept Madison - C2 [and 8000m on 26 Sept] Merle - C2 [and 8000m on 26 Sept] Norris - C2 15 Sept Olito - Summit 26 Sept about 11:00 Piedra - C1 10 Sept, left BC on 20 Sept Seed - C2 15 Sept [and 8000m on 26 Sept] Weinberg - C2 23 Sept, left BC 25 Sept (altitude sickness)
Accidents	-
Achievement	-
Agency	Great Escapes Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2458287
Year	2003
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	34638
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	02
Peak ID	CHOY
Year	2003
Season	3
First Name	Christopher M. (Chris)
Last Name	Booher
Sex	M
Age	0
Birth Date	-
Year of Birth	1971
Calculated Age	32
Citizenship	USA
Status	Deputy Leader
Residence	Sante Fe, New Mexico
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)	7000
Summit Date 1	2003-09-15
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	1
Summit Term	14
HCN	0
Checksum	2439067
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	christopher m. (chris) booher
Year of Birth	1971
Year	2003
Age at Expedition	32
Role	Deputy

Field	Value
ID	34639
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	04
Peak ID	CHOY
Year	2003
Season	3
First Name	William A. (Bill)
Last Name	Burd
Sex	M
Age	0
Birth Date	-
Year of Birth	1944
Calculated Age	59
Citizenship	USA
Status	Climber
Residence	Chicago, Illinois
Occupation	Coin 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)	6200
Summit Date 1	2003-09-10
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	1
Summit Term	19
HCN	0
Checksum	2429293
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	william a. (bill) burd
Year of Birth	1944
Year	2003
Age at Expedition	59
Role	Member

Field	Value
ID	34640
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	05
Peak ID	CHOY
Year	2003
Season	3
First Name	Adam W.
Last Name	Christoffersen
Sex	M
Age	0
Birth Date	-
Year of Birth	1980
Calculated Age	23
Citizenship	USA
Status	Climber
Residence	Edmonds, Washington
Occupation	Employee of commerical real estate company
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	2003-09-26
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	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	From C3 sleeping & climbing to summit and 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	5
Summit Term	1
HCN	0
Checksum	2442317
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	adam w. christoffersen
Year of Birth	1980
Year	2003
Age at Expedition	23
Role	Member

Field	Value
ID	34641
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	06
Peak ID	CHOY
Year	2003
Season	3
First Name	Tamara Alexandra
Last Name	Darnow
Sex	F
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	35
Citizenship	USA
Status	Climber
Residence	San Francisco, California
Occupation	Works in compliance office of financial services company
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	2003-09-15
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	1
Summit Term	19
HCN	0
Checksum	2437809
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tamara alexandra darnow
Year of Birth	1967
Year	2003
Age at Expedition	36
Role	Member

Field	Value
ID	34642
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	07
Peak ID	CHOY
Year	2003
Season	3
First Name	Peter James
Last Name	Ford
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	47
Citizenship	USA
Status	Climber
Residence	Arlington, Virginia
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	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	2003-09-26
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	True
O2 Medical	False
O2 Notes	From C3 sleeping & climbing to summit and 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	5
Summit Term	1
HCN	0
Checksum	2433718
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	peter james ford
Year of Birth	1956
Year	2003
Age at Expedition	47
Role	Member

Field	Value
ID	34643
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	08
Peak ID	CHOY
Year	2003
Season	3
First Name	Kenneth Richard (Ken)
Last Name	Goodwin
Sex	M
Age	0
Birth Date	-
Year of Birth	1945
Calculated Age	58
Citizenship	USA
Status	Climber
Residence	Houston, Texas
Occupation	Retired aerospace engineer
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)	5200
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	6
HCN	0
Checksum	2429595
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kenneth richard (ken) goodwin
Year of Birth	1945
Year	2003
Age at Expedition	58
Role	BC Only

Field	Value
ID	34644
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	01
Peak ID	CHOY
Year	2003
Season	3
First Name	Michael Aaron
Last Name	Hamill
Sex	M
Age	0
Birth Date	-
Year of Birth	1977
Calculated Age	26
Citizenship	USA
Status	Leader
Residence	Hanover, New Hampshire
Occupation	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	2003-09-26
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	True
O2 Medical	False
O2 Notes	From C3 sleeping & climbing to summit and 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	5
Summit Term	1
HCN	0
Checksum	2441301
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael aaron hamill
Year of Birth	1977
Year	2003
Age at Expedition	26
Role	Leader

Field	Value
ID	34645
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	09
Peak ID	CHOY
Year	2003
Season	3
First Name	James M. (Jim)
Last Name	Harter
Sex	M
Age	0
Birth Date	-
Year of Birth	1946
Calculated Age	57
Citizenship	USA
Status	Climber
Residence	Carlsbad, California
Occupation	Retired from oil and gas company
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)	7100
Summit Date 1	2003-09-26
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	From C3 sleeping & climbing to summit and 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	19
HCN	0
Checksum	2430014
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	james m. (jim) harter
Year of Birth	1946
Year	2003
Age at Expedition	57
Role	Member

Field	Value
ID	34646
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	03
Peak ID	CHOY
Year	2003
Season	3
First Name	Garrett Christian
Last Name	Madison
Sex	M
Age	0
Birth Date	-
Year of Birth	1978
Calculated Age	24
Citizenship	USA
Status	Deputy Leader
Residence	Bainbridge Island, Washington
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)	8000
Summit Date 1	2003-10-26
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	From C3 sleeping & climbing to summit and 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	14
HCN	0
Checksum	2441853
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	garrett christian madison
Year of Birth	1978
Year	2003
Age at Expedition	25
Role	Deputy

Field	Value
ID	34647
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	10
Peak ID	CHOY
Year	2003
Season	3
First Name	Justin Reese
Last Name	Merle
Sex	M
Age	0
Birth Date	-
Year of Birth	1978
Calculated Age	25
Citizenship	USA
Status	Climber/Guide
Residence	Ashford, Washington
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)	8000
Summit Date 1	2003-09-26
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	From C3 sleeping & climbing to summit and 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	14
HCN	0
Checksum	2441748
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	justin reese merle
Year of Birth	1978
Year	2003
Age at Expedition	25
Role	Member

Field	Value
ID	34648
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	11
Peak ID	CHOY
Year	2003
Season	3
First Name	Nancy A.
Last Name	Norris
Sex	F
Age	0
Birth Date	-
Year of Birth	1943
Calculated Age	59
Citizenship	USA
Status	Climber
Residence	Grand Blanc, Michigan
Occupation	Fitness professional
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	2003-09-15
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	1
Summit Term	19
HCN	0
Checksum	2429130
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nancy a. norris
Year of Birth	1943
Year	2003
Age at Expedition	60
Role	Member

Field	Value
ID	34649
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	12
Peak ID	CHOY
Year	2003
Season	3
First Name	Atalanta Cleopatria (Lanta)
Last Name	Olito
Sex	F
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	37
Citizenship	USA
Status	Climber
Residence	Murrieta, California
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	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	2003-09-26
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	True
O2 Medical	False
O2 Notes	From C3 sleeping & climbing to summit and 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	5
Summit Term	1
HCN	0
Checksum	2437280
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	atalanta cleopatria (lanta) olito
Year of Birth	1966
Year	2003
Age at Expedition	37
Role	Member

Field	Value
ID	34650
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	13
Peak ID	CHOY
Year	2003
Season	3
First Name	Jose Ignacio (Nacho)
Last Name	Piedra Rascon
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	38
Citizenship	Spain
Status	Climber
Residence	Madrid, Spain
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)	6200
Summit Date 1	2003-09-10
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	1
Summit Term	19
HCN	0
Checksum	2436885
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jose ignacio (nacho) piedra rascon
Year of Birth	1965
Year	2003
Age at Expedition	38
Role	Member

Field	Value
ID	34651
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	14
Peak ID	CHOY
Year	2003
Season	3
First Name	Lindon R.
Last Name	Seed
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	35
Citizenship	USA
Status	Climber
Residence	San Francisco, California
Occupation	Investment 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)	8000
Summit Date 1	2003-09-26
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	From C3 sleeping & climbing to summit and 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	19
HCN	0
Checksum	2437791
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lindon r. seed
Year of Birth	1967
Year	2003
Age at Expedition	36
Role	Member

Field	Value
ID	34652
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	15
Peak ID	CHOY
Year	2003
Season	3
First Name	Josef F.
Last Name	Stanzl
Sex	M
Age	0
Birth Date	-
Year of Birth	1932
Calculated Age	70
Citizenship	USA
Status	Climber
Residence	Seattle, Washington
Occupation	Property 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	2003-09-26
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	From C3 sleeping & climbing to highpt and 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	19
HCN	0
Checksum	2425152
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	josef f. stanzl
Year of Birth	1932
Year	2003
Age at Expedition	71
Role	Member

Field	Value
ID	34653
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	16
Peak ID	CHOY
Year	2003
Season	3
First Name	Mark Jeffrey
Last Name	Weinberg
Sex	M
Age	0
Birth Date	-
Year of Birth	1961
Calculated Age	41
Citizenship	USA
Status	Climber
Residence	Kirkland, Washington
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)	7000
Summit Date 1	2003-09-23
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	6
HCN	0
Checksum	2435598
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mark jeffrey weinberg
Year of Birth	1961
Year	2003
Age at Expedition	42
Role	Member

Field	Value
ID	34654
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	17
Peak ID	CHOY
Year	2003
Season	3
First Name	Ang Pasang
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	37
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	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	2003-09-26
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	From C3 sleeping & climbing to summit and 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	2nd ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437136
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ang pasang sherpa
Year of Birth	1966
Year	2003
Age at Expedition	37
Role	Hired

Field	Value
ID	34655
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	18
Peak ID	CHOY
Year	2003
Season	3
First Name	Dawa Nuru (Danuru)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1978
Calculated Age	24
Citizenship	Nepal
Status	H-A Worker
Residence	Phortse, 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	2003-09-26
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	From C3 sleeping & climbing to summit and 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	4th ascent of Cho Oyu; brother of Panuru Sherpa (Phortse)
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2441764
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	dawa nuru (danuru) sherpa
Year of Birth	1978
Year	2003
Age at Expedition	25
Role	Hired

Field	Value
ID	34656
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	21
Peak ID	CHOY
Year	2003
Season	3
First Name	Phu Nuru (Phunuru)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1980
Calculated Age	23
Citizenship	Nepal
Status	H-A Worker
Residence	Phortse, 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	2003-09-26
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	From C3 sleeping & climbing to summit and 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	4th ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2442330
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	phu nuru (phunuru) sherpa
Year of Birth	1980
Year	2003
Age at Expedition	23
Role	Hired

Field	Value
ID	47353
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	19
Peak ID	CHOY
Year	2003
Season	3
First Name	Karma Rita
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1976
Calculated Age	27
Citizenship	Nepal
Status	H-A Worker
Residence	Phortse, 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	False
High Point (m)	False
Personal High Point (m)	7500
Summit Date 1	2003-09-26
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	From C3 sleeping & climbing to highpt and 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	14
HCN	0
Checksum	2440838
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	karma rita sherpa
Year of Birth	1976
Year	2003
Age at Expedition	27
Role	Hired

Field	Value
ID	47354
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY03318
Member ID	20
Peak ID	CHOY
Year	2003
Season	3
First Name	Mingma Ongel (Sonam Gyalzen)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1978
Calculated Age	25
Citizenship	Nepal
Status	H-A Worker
Residence	Phortse, 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	False
High Point (m)	False
Personal High Point (m)	8000
Summit Date 1	2003-09-26
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	From C3 sleeping & climbing to summit and 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	14
HCN	0
Checksum	2441632
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mingma ongel (sonam gyalzen) sherpa
Year of Birth	1978
Year	2003
Age at Expedition	25
Role	Hired

21 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Christopher M. (Chris) Booher	M	1971	USA	Deputy Leader	Sante Fe, New Mexico	Alpine guide	Details Other expeditions
William A. (Bill) Burd	M	1944	USA	Climber	Chicago, Illinois	Coin shop owner	Details Other expeditions
Adam W. Christoffersen	M	1980	USA	Climber	Edmonds, Washington	Employee of commerical real estate company	Details Other expeditions
Tamara Alexandra Darnow	F	1967	USA	Climber	San Francisco, California	Works in compliance office of financial services company	Details Other expeditions
Peter James Ford	M	1956	USA	Climber	Arlington, Virginia	Attorney	Details Other expeditions
Kenneth Richard (Ken) Goodwin	M	1945	USA	Climber	Houston, Texas	Retired aerospace engineer	Details Other expeditions
Michael Aaron Hamill	M	1977	USA	Leader	Hanover, New Hampshire	Alpine guide	Details Other expeditions
James M. (Jim) Harter	M	1946	USA	Climber	Carlsbad, California	Retired from oil and gas company	Details Other expeditions
Garrett Christian Madison	M	1978	USA	Deputy Leader	Bainbridge Island, Washington	Alpine guide	Details Other expeditions
Justin Reese Merle	M	1978	USA	Climber/Guide	Ashford, Washington	Alpine guide	Details Other expeditions
Nancy A. Norris	F	1943	USA	Climber	Grand Blanc, Michigan	Fitness professional	Details Other expeditions
Atalanta Cleopatria (Lanta) Olito	F	1966	USA	Climber	Murrieta, California	Physician	Details Other expeditions
Jose Ignacio (Nacho) Piedra Rascon	M	1965	Spain	Climber	Madrid, Spain	Banker	Details Other expeditions
Lindon R. Seed	M	1967	USA	Climber	San Francisco, California	Investment banker	Details Other expeditions
Josef F. Stanzl	M	1932	USA	Climber	Seattle, Washington	Property manager	Details Other expeditions
Mark Jeffrey Weinberg	M	1961	USA	Climber	Kirkland, Washington	Engineer	Details Other expeditions
Ang Pasang Sherpa	M	1966	Nepal	H-A Worker	Pangboche, Khumbu	-	Details Other expeditions
Dawa Nuru (Danuru) Sherpa	M	1978	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Phu Nuru (Phunuru) Sherpa	M	1980	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Karma Rita Sherpa	M	1976	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Mingma Ongel (Sonam Gyalzen) Sherpa	M	1978	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions

References

Field	Value
ID	7650
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY03318
Reference ID	01
Year	2003
Type	5
Journal	-
Author	-
Title	http://www.mountainguides.com/03cho-oyu/index.html
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

1 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY03318	-	-	http://www.mountainguides.com/03cho-oyu/index.html	-	-	-