Cho Oyu | 2013 NW side

A USA expedition to Cho Oyu in 2013 via NW side, led by Mike Hamill. Summit reached on 1st October 2013. 21 members recorded.

Expedition Details

Field	Value
ID	8251
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY13320
Peak ID	CHOY
Year	2013
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 2013
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	Brazil, Germany, New Zealand
Approach	-
Basecamp Date	2013-09-05
Summit Date	2013-10-01
Summit Time	-
Summit Days	26
Total Days	30
Termination Date	2013-10-05
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	0
Total Members	14
Summit Members	9
Member Deaths	0
Total Hired	7
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(05/09,4800m),ABC(10/09,5700m),C1(15/09,6430m),C2(22/09,7100m),C3(30/09,7500m),Smt(01/10)
Route Notes	The summit party of ten members and six Sherpas set out for the top from C3 thirty minutes after midnight in the wee hours of 1 October. They were Anderson, Bellamy, Broderick, De Raad, Florenzano, Gomes, Gordon, Hamill, Sand and Tammen, with Sherpas Ang Karma, Chewang Lendu, Mingma Dorje, Mingma Tenzing, Nima Karma and Phu Nuru. One member decided to turn around at 8100m: Broderick was moving too slowly and running out of oxygen already; she retreated to C1, where she arrived at 4:30 pm that afternoon. Ang Karma retreated to C1 with her. All the rest of the party went on to the summit at various times. Gordon and Sand were the first to arrive at the top with Phu Nuru and Mingma Dorje respectively. All summiters descended to C1, but Gordon and Phu Nuru went on down to ABC at about 4:30 pm. The only health problem was a snow avalanche that hit Karma Rita on 17 September while he was fixing rope. His knee and finger hurt, but he suffered no permanent damage. Non-summiting members: Faje reached 6700m (C2) on 22 September. He didn't think he was strong enough to achieve the summit and decided this was enough for him, so he retreated to BC. Gottwald got to 5275m at intermediate camp between BC and ABC on 8 September and didn't feel well. He left the team on 9 September. Murphy left on 2 October. He reached 6700m and the altitude made him slow down. Silva got to 6700m on 22 September, then left to attend to some problem at home. Sherpas: Ang Karma, 25/7/74, Phortse, Cho Oyu X2, Everest X3 Chewang/Chuwang/Tsewang Lendu, 19/4/80, Phortse, Cho Oyu X1, Everest X4, Lhotse X4, Manaslu X1 Mingma Dorje, 22/7/65, Phortse, Cho Oyu X2, Everest X7 Mingma Tenzing, 1/6/86, Phortse, Everest X2 Nima Karma, 30/6/83, Phortse, Everest X5 Phu Nuru, 16/5/80, Phortse, Cho Oyu X7, Everest X5 Karma Rita, 21/6/76, Phortse, Cho Oyu X4, Everest X6
Accidents	-
Achievement	-
Agency	Beyul Adventure
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2462180
Year	2013
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	60144
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	01
Peak ID	CHOY
Year	2013
Season	3
First Name	Michael Aaron
Last Name	Hamill
Sex	M
Age	0
Birth Date	-
Year of Birth	1977
Calculated Age	36
Citizenship	USA
Status	Leader
Residence	Seattle, Washington
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2441301
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	michael aaron hamill
Year of Birth	1977
Year	2013
Age at Expedition	36
Role	Leader

Field	Value
ID	60145
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	02
Peak ID	CHOY
Year	2013
Season	3
First Name	Peter Novak
Last Name	Anderson
Sex	M
Age	0
Birth Date	-
Year of Birth	1979
Calculated Age	34
Citizenship	USA
Status	Climber
Residence	Missoula, Montana
Occupation	Alpine guide & nurse
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2442091
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	peter novak anderson
Year of Birth	1979
Year	2013
Age at Expedition	34
Role	Member

Field	Value
ID	60146
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	03
Peak ID	CHOY
Year	2013
Season	3
First Name	Mark Philip
Last Name	Bellamy
Sex	M
Age	0
Birth Date	-
Year of Birth	1978
Calculated Age	35
Citizenship	New Zealand
Status	Climber
Residence	Auckland, New Zealand
Occupation	IT consultant
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2441650
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mark philip bellamy
Year of Birth	1978
Year	2013
Age at Expedition	35
Role	Member

Field	Value
ID	60147
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	04
Peak ID	CHOY
Year	2013
Season	3
First Name	Charmaine Marie
Last Name	Broderick
Sex	F
Age	0
Birth Date	-
Year of Birth	1970
Calculated Age	43
Citizenship	New Zealand
Status	Climber
Residence	Lawrence, South Otago, New Zealand
Occupation	Nurse
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	False
Personal High Point (m)	8100
Summit Date 1	2013-10-01
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 & from C3 to high pt 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	4
Summit Term	13
HCN	0
Checksum	2438578
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	charmaine marie broderick
Year of Birth	1970
Year	2013
Age at Expedition	43
Role	Member

Field	Value
ID	60148
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	05
Peak ID	CHOY
Year	2013
Season	3
First Name	Jerry
Last Name	De Raad
Sex	M
Age	0
Birth Date	-
Year of Birth	1970
Calculated Age	43
Citizenship	USA
Status	Climber
Residence	Squammish, Washington
Occupation	Software 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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2438637
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jerry de raad
Year of Birth	1970
Year	2013
Age at Expedition	43
Role	Member

Field	Value
ID	60149
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	06
Peak ID	CHOY
Year	2013
Season	3
First Name	Alex
Last Name	Faje
Sex	M
Age	0
Birth Date	-
Year of Birth	1979
Calculated Age	33
Citizenship	USA
Status	Climber
Residence	Sommerville, Massachusetts
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	False
High Point (m)	False
Personal High Point (m)	6700
Summit Date 1	2013-09-22
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	1
Summit Term	7
HCN	0
Checksum	2442174
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	alex faje
Year of Birth	1979
Year	2013
Age at Expedition	34
Role	Member

Field	Value
ID	60150
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	07
Peak ID	CHOY
Year	2013
Season	3
First Name	Lisete
Last Name	Florenzano
Sex	F
Age	0
Birth Date	-
Year of Birth	1971
Calculated Age	42
Citizenship	Brazil
Status	Climber
Residence	Botucatu, Sao Paulo, Brazil
Occupation	Trekking guide
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2438917
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lisete florenzano
Year of Birth	1971
Year	2013
Age at Expedition	42
Role	Member

Field	Value
ID	60151
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	08
Peak ID	CHOY
Year	2013
Season	3
First Name	Agnaldo Jose
Last Name	Gomes
Sex	M
Age	0
Birth Date	-
Year of Birth	1971
Calculated Age	41
Citizenship	Brazil
Status	Climber
Residence	Sao Paulo, Brazil
Occupation	Rubber company owner
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2439203
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	agnaldo jose gomes
Year of Birth	1971
Year	2013
Age at Expedition	42
Role	Member

Field	Value
ID	60152
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	09
Peak ID	CHOY
Year	2013
Season	3
First Name	Brenda
Last Name	Gordon
Sex	F
Age	0
Birth Date	-
Year of Birth	1969
Calculated Age	44
Citizenship	USA
Status	Climber
Residence	Tacoma, Washington
Occupation	Teacher
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2438262
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	brenda gordon
Year of Birth	1969
Year	2013
Age at Expedition	44
Role	Member

Field	Value
ID	60153
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	10
Peak ID	CHOY
Year	2013
Season	3
First Name	Bruce
Last Name	Gottwald
Sex	M
Age	0
Birth Date	-
Year of Birth	1957
Calculated Age	55
Citizenship	USA
Status	Climber
Residence	Richmond, Virginia
Occupation	Financial advisor
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	False
High Point (m)	False
Personal High Point (m)	5275
Summit Date 1	2013-09-08
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	6
HCN	0
Checksum	2434173
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	bruce gottwald
Year of Birth	1957
Year	2013
Age at Expedition	56
Role	BC Only

Field	Value
ID	60154
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	11
Peak ID	CHOY
Year	2013
Season	3
First Name	Neil
Last Name	Murphy
Sex	M
Age	0
Birth Date	-
Year of Birth	1954
Calculated Age	58
Citizenship	USA
Status	Climber
Residence	Eagle River, Alaska
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	False
High Point (m)	False
Personal High Point (m)	6700
Summit Date 1	2013-09-22
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	1
Summit Term	6
HCN	0
Checksum	2433005
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	neil murphy
Year of Birth	1954
Year	2013
Age at Expedition	59
Role	Member

Field	Value
ID	60155
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	12
Peak ID	CHOY
Year	2013
Season	3
First Name	Heidi Schott
Last Name	Sand
Sex	F
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	46
Citizenship	Germany
Status	Climber
Residence	Stuttgart, Baden-Wuerttemberg, Germany
Occupation	Sculptress
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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	5
Summit Term	1
HCN	0
Checksum	2437379
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	heidi schott sand
Year of Birth	1966
Year	2013
Age at Expedition	47
Role	Member

Field	Value
ID	60156
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	13
Peak ID	CHOY
Year	2013
Season	3
First Name	Luiz Fernando
Last Name	Silva
Sex	M
Age	0
Birth Date	-
Year of Birth	1971
Calculated Age	42
Citizenship	Brazil
Status	Climber
Residence	Sao Paulo, Brazil
Occupation	Chemistry professor
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	False
Sherpa	False
Tibetan	False
Summit Success	False
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	False
Personal High Point (m)	6700
Summit Date 1	2013-09-22
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	1
Summit Term	18
HCN	0
Checksum	2438992
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	luiz fernando silva
Year of Birth	1971
Year	2013
Age at Expedition	42
Role	Member

Field	Value
ID	60157
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	14
Peak ID	CHOY
Year	2013
Season	3
First Name	Matthew Thomas
Last Name	Tammen
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	52
Citizenship	USA
Status	Climber
Residence	Bremerton, 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	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2435255
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	matthew thomas tammen
Year of Birth	1960
Year	2013
Age at Expedition	53
Role	Member

Field	Value
ID	60158
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	15
Peak ID	CHOY
Year	2013
Season	3
First Name	Ang Karma
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1974
Calculated Age	39
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)	8100
Summit Date 1	2013-10-01
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 & from C3 to high pt 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	4
Summit Term	14
HCN	0
Checksum	2440231
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ang karma sherpa
Year of Birth	1974
Year	2013
Age at Expedition	39
Role	Hired

Field	Value
ID	60159
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	16
Peak ID	CHOY
Year	2013
Season	3
First Name	Chhewang Lendu (Tsewang Lendu)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1980
Calculated Age	33
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2nd ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2442303
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	chhewang lendu (tsewang lendu) sherpa
Year of Birth	1980
Year	2013
Age at Expedition	33
Role	Hired

Field	Value
ID	60160
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	17
Peak ID	CHOY
Year	2013
Season	3
First Name	Karma Rita
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1976
Calculated Age	37
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)	6900
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	2013-09-17
Injury Time	-
Injury Type	7
Injury Height (m)	7000
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	5
HCN	0
Checksum	2440774
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	karma rita sherpa
Year of Birth	1976
Year	2013
Age at Expedition	37
Role	Hired

Field	Value
ID	60161
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	18
Peak ID	CHOY
Year	2013
Season	3
First Name	Mingma Dorje
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	48
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	3rd ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2436933
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mingma dorje sherpa
Year of Birth	1965
Year	2013
Age at Expedition	48
Role	Hired

Field	Value
ID	60162
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	19
Peak ID	CHOY
Year	2013
Season	3
First Name	Mingma Tenzing
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1986
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	True
Claimed	False
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2444531
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mingma tenzing sherpa
Year of Birth	1986
Year	2013
Age at Expedition	27
Role	Hired

Field	Value
ID	60163
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	20
Peak ID	CHOY
Year	2013
Season	3
First Name	Nima Karma
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1983
Calculated Age	30
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	2443466
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	nima karma sherpa
Year of Birth	1983
Year	2013
Age at Expedition	30
Role	Hired

Field	Value
ID	60164
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY13320
Member ID	21
Peak ID	CHOY
Year	2013
Season	3
First Name	Phu Nuru (Phunuru)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1980
Calculated Age	33
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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2013-10-01
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 & from C3 to smt 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	8th 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	2013
Age at Expedition	33
Role	Hired

21 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Michael Aaron Hamill	M	1977	USA	Leader	Seattle, Washington	Alpine guide	Details Other expeditions
Peter Novak Anderson	M	1979	USA	Climber	Missoula, Montana	Alpine guide & nurse	Details Other expeditions
Mark Philip Bellamy	M	1978	New Zealand	Climber	Auckland, New Zealand	IT consultant	Details Other expeditions
Charmaine Marie Broderick	F	1970	New Zealand	Climber	Lawrence, South Otago, New Zealand	Nurse	Details Other expeditions
Jerry De Raad	M	1970	USA	Climber	Squammish, Washington	Software engineer	Details Other expeditions
Alex Faje	M	1979	USA	Climber	Sommerville, Massachusetts	Physician	Details Other expeditions
Lisete Florenzano	F	1971	Brazil	Climber	Botucatu, Sao Paulo, Brazil	Trekking guide	Details Other expeditions
Agnaldo Jose Gomes	M	1971	Brazil	Climber	Sao Paulo, Brazil	Rubber company owner	Details Other expeditions
Brenda Gordon	F	1969	USA	Climber	Tacoma, Washington	Teacher	Details Other expeditions
Bruce Gottwald	M	1957	USA	Climber	Richmond, Virginia	Financial advisor	Details Other expeditions
Neil Murphy	M	1954	USA	Climber	Eagle River, Alaska	Physician	Details Other expeditions
Heidi Schott Sand	F	1966	Germany	Climber	Stuttgart, Baden-Wuerttemberg, Germany	Sculptress	Details Other expeditions
Luiz Fernando Silva	M	1971	Brazil	Climber	Sao Paulo, Brazil	Chemistry professor	Details Other expeditions
Matthew Thomas Tammen	M	1960	USA	Climber	Bremerton, Washington	Engineer	Details Other expeditions
Ang Karma Sherpa	M	1974	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Chhewang Lendu (Tsewang Lendu) 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 Dorje Sherpa	M	1965	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Mingma Tenzing Sherpa	M	1986	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Nima Karma Sherpa	M	1983	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions
Phu Nuru (Phunuru) Sherpa	M	1980	Nepal	H-A Worker	Phortse, Khumbu	-	Details Other expeditions

References

Field	Value
ID	9161
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY13320
Reference ID	01
Year	2013
Type	5
Journal	-
Author	-
Title	http://www.mountainguides.com/cho-oyu13.shtml
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

1 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY13320	-	-	http://www.mountainguides.com/cho-oyu13.shtml	-	-	-