Cho Oyu | 2004 NW side

A USA expedition to Cho Oyu in 2004 via NW side, led by Glenn Porzak. Summit reached on 26th September 2004. 10 members recorded.

Expedition Details

Field	Value
ID	4699
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY04335
Peak ID	CHOY
Year	2004
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Glenn Porzak
Sponsor	2004 American Cho Oyu Expedition
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	-
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	-
Basecamp Date	2004-09-09
Summit Date	2004-09-26
Summit Time	0700
Summit Days	17
Total Days	23
Termination Date	2004-10-02
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	5
Summit Members	4
Member Deaths	0
Total Hired	5
Summit Hired	5
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(09/09),ABC(12/09,5630m),C1(18/09,6400m),C2(21/09,7000m),C3(25/09,7460m),Smt(26,30/09)
Route Notes	1st summit party left C3 2:00 am NST 26th Sept, on top at 7:00 am with within a few minutes of each other; saw Everest, Lhotse, Kangchenjunga. Returned to C3 9:30 am and down to C2 1:00 and 2:30 pm to sleep there; to ABC 27th 2nd party on top 9:00 am, saw Everest, returned to C3 10:30 am, down to C2 at 3:00 pm. Oxygen: Kopczynski in C3 to C2 Coombs from C3 to top to C3 Porzak from C3 to to top to just above C3 Steiger used none Sherpas used none Sherpa summiters: Lhakpa Dorje, 1956, Phortse, Everst 1983 Ang Pasang, 21/5/67, Khumjung, Everest X1 Karchen Dorje, 19/11/65, Khumjung, Everest X1, Cho Oyu X1, Lhotse X1, Sonam Tashi, 3/12/71, Khumjung, Cho Oyu X3 Nawang Karsang, 23/7/69, Khumjung, Everest X1
Accidents	Manning got sick from altitude in C3 on 26th so not to top
Achievement	-
Agency	Asian Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2458654
Year	2004
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	36137
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	02
Peak ID	CHOY
Year	2004
Season	3
First Name	David Kemp
Last Name	Coombs
Sex	M
Age	0
Birth Date	-
Year of Birth	1951
Calculated Age	53
Citizenship	USA
Status	Climber
Residence	Spokane, Washington
Occupation	Owner of manufacturing businesses
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	2004-09-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0700
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	From C3 to top to C3
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	2431814
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	david kemp coombs
Year of Birth	1951
Year	2004
Age at Expedition	53
Role	Member

Field	Value
ID	36138
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	03
Peak ID	CHOY
Year	2004
Season	3
First Name	Christopher M. (Kris)
Last Name	Kopczynski
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	56
Citizenship	USA
Status	Climber
Residence	Spokane, Washington
Occupation	Building construction
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	2004-09-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0700
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 C3 to top 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	2430572
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	christopher m. (kris) kopczynski
Year of Birth	1948
Year	2004
Age at Expedition	56
Role	Member

Field	Value
ID	36139
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	04
Peak ID	CHOY
Year	2004
Season	3
First Name	Brent V.
Last Name	Manning
Sex	M
Age	0
Birth Date	-
Year of Birth	1950
Calculated Age	54
Citizenship	USA
Status	Climber
Residence	Salt Lake City, Utah
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)	7460
Summit Date 1	2004-09-25
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	False
O2 Descent	False
O2 Sleep	True
O2 Medical	False
O2 Notes	In C3
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	2431348
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	brent v. manning
Year of Birth	1950
Year	2004
Age at Expedition	54
Role	Member

Field	Value
ID	36140
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	01
Peak ID	CHOY
Year	2004
Season	3
First Name	Glenn Edward
Last Name	Porzak
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	56
Citizenship	USA
Status	Leader
Residence	Boulder, Colorado
Occupation	Attorney
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	2004-09-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0700
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	From C3 to top to just above C3
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	2430752
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	glenn edward porzak
Year of Birth	1948
Year	2004
Age at Expedition	56
Role	Leader

Field	Value
ID	36141
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	05
Peak ID	CHOY
Year	2004
Season	3
First Name	John W.
Last Name	Steiger
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	47
Citizenship	USA
Status	Climber
Residence	Salt Lake City, Utah
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	2004-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0900
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	5
Summit Term	1
HCN	0
Checksum	2433766
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	john w. steiger
Year of Birth	1956
Year	2004
Age at Expedition	48
Role	Member

Field	Value
ID	36142
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	08
Peak ID	CHOY
Year	2004
Season	3
First Name	Lhakpa Dorje
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1958
Calculated Age	46
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	2004-09-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0700
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	5
Summit Term	1
HCN	0
Checksum	2434268
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lhakpa dorje sherpa
Year of Birth	1958
Year	2004
Age at Expedition	46
Role	Hired

Field	Value
ID	36143
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	06
Peak ID	CHOY
Year	2004
Season	3
First Name	Ang Pasang (Pasang Nuru)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	37
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	2004-09-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0700
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	5
Summit Term	1
HCN	0
Checksum	2437579
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ang pasang (pasang nuru) sherpa
Year of Birth	1967
Year	2004
Age at Expedition	37
Role	Hired

Field	Value
ID	36144
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	07
Peak ID	CHOY
Year	2004
Season	3
First Name	Karchen Dawa
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	38
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	2004-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0900
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	2nd ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437033
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	karchen dawa sherpa
Year of Birth	1965
Year	2004
Age at Expedition	39
Role	Hired

Field	Value
ID	36145
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	09
Peak ID	CHOY
Year	2004
Season	3
First Name	Nawang Karsang
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	36
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	2004-09-26
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0700
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	1st 8000er (not same Nawang Karsang as EVER-031-14 summiter)
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2438048
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nawang karsang sherpa
Year of Birth	1968
Year	2004
Age at Expedition	36
Role	Hired

Field	Value
ID	36146
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY04335
Member ID	10
Peak ID	CHOY
Year	2004
Season	3
First Name	Sonam Tashi
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1971
Calculated Age	32
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	2004-09-30
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0900
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	5
Summit Term	1
HCN	0
Checksum	2439232
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	sonam tashi sherpa
Year of Birth	1971
Year	2004
Age at Expedition	33
Role	Hired

10 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
David Kemp Coombs	M	1951	USA	Climber	Spokane, Washington	Owner of manufacturing businesses	Details Other expeditions
Christopher M. (Kris) Kopczynski	M	1948	USA	Climber	Spokane, Washington	Building construction	Details Other expeditions
Brent V. Manning	M	1950	USA	Climber	Salt Lake City, Utah	Attorney	Details Other expeditions
Glenn Edward Porzak	M	1948	USA	Leader	Boulder, Colorado	Attorney	Details Other expeditions
John W. Steiger	M	1956	USA	Climber	Salt Lake City, Utah	Attorney	Details Other expeditions
Lhakpa Dorje Sherpa	M	1958	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Ang Pasang (Pasang Nuru) Sherpa	M	1967	Nepal	H-A Worker	Khumjung, Khumbu	-	Details Other expeditions
Karchen Dawa Sherpa	M	1965	Nepal	H-A Worker	Khumjung, Khumbu	-	Details Other expeditions
Nawang Karsang Sherpa	M	1968	Nepal	H-A Worker	Khumjung, Khumbu	-	Details Other expeditions
Sonam Tashi Sherpa	M	1971	Nepal	H-A Worker	Khumjung, Khumbu	-	Details Other expeditions

References

0 recorded references.