Cho Oyu | 2014 NW side

A USA expedition to Cho Oyu in 2014 via NW side, led by Dan Mazur. Summit reached on 28th September 2014. 23 members recorded.

Expedition Details

Field	Value
ID	8687
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY14322
Peak ID	CHOY
Year	2014
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Dan Mazur
Sponsor	SummitClimb Cho Oyu Expedition 2014
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	Austria, Germany, Iceland, Netherlands, Portugal, Sweden, UK
Approach	-
Basecamp Date	2014-09-07
Summit Date	2014-09-28
Summit Time	0930
Summit Days	21
Total Days	0
Termination Date	-
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	0
Fixed Rope (m)	0
Total Members	19
Summit Members	12
Member Deaths	0
Total Hired	4
Summit Hired	3
Hired Deaths	0
No Hired	False
O2 Used	False
O2 None	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(07/09,4900m),ABC(10/09,5650m),IC(1410,6000m),C1(15/10,6400m),C1.5,C2(19/10,7142m),Smt(28-29/09,02/10)
Route Notes	Sept 28: Leo Wang summited at 9:30 am. The German team of Stefan Simchen, Thomas Hoffman, Uwe Werner and Christian Muendl also summited. Sept 29: SummitClimb Cho Oyu team returned from summit to C3. Everyone summited: Glen Nyberg, Andreas Aaldering, Marina Cortes, Alan Barclay, Dan Mazur, Jangbu Sherpa, Ang Pasang Sherpa. Oct 02: Villa Gissurardottir and Atli Palsson summited without oxygen or Sherpa support. The Icelanders climbed independently from the SummitClimb group above ABC. What happened to Sebastian Dennerlein? What happened to Cops on Top group?
Accidents	-
Achievement	-
Agency	Everest Parivar
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2462588
Year	2014
Summit Success	True
O2 Summary	Unknown
Route (lowercase)	nw side

Members

Field	Value
ID	62935
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	01
Peak ID	CHOY
Year	2014
Season	3
First Name	Daniel Lee (Dan)
Last Name	Mazur
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	53
Citizenship	USA
Status	Leader
Residence	Longbranch, Washington
Occupation	Expedition organizer & leader
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	2014-09-29
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	False
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	2435177
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	daniel lee (dan) mazur
Year of Birth	1960
Year	2014
Age at Expedition	54
Role	Leader

Field	Value
ID	62936
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	02
Peak ID	CHOY
Year	2014
Season	3
First Name	Stefan
Last Name	Simchen
Sex	M
Age	0
Birth Date	-
Year of Birth	1974
Calculated Age	40
Citizenship	Germany
Status	Climbing Leader
Residence	-
Occupation	-
Leader	False
Deputy	True
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	2014-09-28
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	False
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	2440089
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	stefan simchen
Year of Birth	1974
Year	2014
Age at Expedition	40
Role	Deputy

Field	Value
ID	62937
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	03
Peak ID	CHOY
Year	2014
Season	3
First Name	Andreas Theodorus
Last Name	Aaldering
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Netherlands
Status	Climber
Residence	-
Occupation	-
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	2014-09-29
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	False
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	-86
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	andreas theodorus aaldering
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62938
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	05
Peak ID	CHOY
Year	2014
Season	3
First Name	Alan
Last Name	Barclay
Sex	M
Age	0
Birth Date	-
Year of Birth	1963
Calculated Age	51
Citizenship	UK
Status	Climber
Residence	London, England
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	2014-09-29
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	False
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	2436216
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	alan barclay
Year of Birth	1963
Year	2014
Age at Expedition	51
Role	Member

Field	Value
ID	62939
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	16
Peak ID	CHOY
Year	2014
Season	3
First Name	Glenn Eric
Last Name	Nyberg
Sex	M
Age	0
Birth Date	-
Year of Birth	1957
Calculated Age	57
Citizenship	USA
Status	Climber
Residence	Wichita, Kansas
Occupation	Insurance agent
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	2014-10-29
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	False
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	(1957-2021) Died 20 April 2021
Summit Bid	5
Summit Term	1
HCN	0
Checksum	-2043
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	glenn eric nyberg
Year of Birth	1957
Year	2014
Age at Expedition	57
Role	Member

Field	Value
ID	62940
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	07
Peak ID	CHOY
Year	2014
Season	3
First Name	Marina Vinhas
Last Name	Cortes
Sex	F
Age	0
Birth Date	-
Year of Birth	1975
Calculated Age	39
Citizenship	Portugal
Status	Climber
Residence	Corroios, Portugal
Occupation	Astrophysicist
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	2014-09-29
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	False
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	2440500
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	marina vinhas cortes
Year of Birth	1975
Year	2014
Age at Expedition	39
Role	Member

Field	Value
ID	62941
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	06
Peak ID	CHOY
Year	2014
Season	3
First Name	Fredrik
Last Name	Bergvall
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Sweden
Status	Climber
Residence	-
Occupation	-
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)	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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	-67
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	fredrik bergvall
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62942
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	08
Peak ID	CHOY
Year	2014
Season	3
First Name	Sebastian
Last Name	Dennerlein
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Germany
Status	Climber
Residence	-
Occupation	-
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)	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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	-67
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	sebastian dennerlein
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62943
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	19
Peak ID	CHOY
Year	2014
Season	3
First Name	Uwe
Last Name	Werner
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Germany
Status	Climber
Residence	-
Occupation	-
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	2014-09-28
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	False
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	-86
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	uwe werner
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62944
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	13
Peak ID	CHOY
Year	2014
Season	3
First Name	Thomas
Last Name	Hoffman
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Germany
Status	Climber
Residence	-
Occupation	-
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	2014-09-28
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	False
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	-86
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	thomas hoffman
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62945
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	18
Peak ID	CHOY
Year	2014
Season	3
First Name	Leo Le
Last Name	Wang
Sex	M
Age	0
Birth Date	-
Year of Birth	1988
Calculated Age	26
Citizenship	USA/China
Status	Climber
Residence	Princeton Junction, New Jersey
Occupation	Investment advisor
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	2014-09-28
Summit Date 2	-
Summit Date 3	-
Summit Time 1	0930
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	False
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	2445316
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	leo le wang
Year of Birth	1988
Year	2014
Age at Expedition	26
Role	Member

Field	Value
ID	62946
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	14
Peak ID	CHOY
Year	2014
Season	3
First Name	Steven Carl
Last Name	Janke
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	44
Citizenship	USA
Status	Climber
Residence	Columbus, Ohio
Occupation	US Forest Service firefighter
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)	7142
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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	-67
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	steven carl janke
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62947
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	04
Peak ID	CHOY
Year	2014
Season	3
First Name	Troy A.
Last Name	Bacon
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	38
Citizenship	USA
Status	Climber
Residence	Frankfort, Indiana
Occupation	Police chief
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)	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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	-67
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	troy a. bacon
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62948
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	11
Peak ID	CHOY
Year	2014
Season	3
First Name	Stuart
Last Name	Frink
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	48
Citizenship	USA
Status	Climber
Residence	Kent, Washington
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	False
High Point (m)	False
Personal High Point (m)	7142
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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	-67
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	stuart frink
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62949
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	09
Peak ID	CHOY
Year	2014
Season	3
First Name	Kaley Laine
Last Name	Erickson
Sex	F
Age	0
Birth Date	-
Year of Birth	1949
Calculated Age	65
Citizenship	USA
Status	Climber
Residence	Truckee, California
Occupation	US Forest Service battalion chief (retired)
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)	7142
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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	2431029
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kaley laine erickson
Year of Birth	1949
Year	2014
Age at Expedition	65
Role	Member

Field	Value
ID	62950
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	10
Peak ID	CHOY
Year	2014
Season	3
First Name	Christoph
Last Name	Forester
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Austria
Status	Climber
Residence	-
Occupation	-
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)	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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	-67
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	christoph forester
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62951
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	12
Peak ID	CHOY
Year	2014
Season	3
First Name	Vilborg Arna (Villa)
Last Name	Gissurardottir
Sex	F
Age	0
Birth Date	-
Year of Birth	1980
Calculated Age	34
Citizenship	Iceland
Status	Climber
Residence	Selfoss, Iceland
Occupation	Professional speaker
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	2014-10-02
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	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	2442341
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	vilborg arna (villa) gissurardottir
Year of Birth	1980
Year	2014
Age at Expedition	34
Role	Member

Field	Value
ID	62952
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	17
Peak ID	CHOY
Year	2014
Season	3
First Name	Atli
Last Name	Palsson
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	0
Citizenship	Iceland
Status	Climber
Residence	-
Occupation	-
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	2014-10-02
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	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	-86
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	atli palsson
Year of Birth	-
Year	2014
Age at Expedition	-
Role	Member

Field	Value
ID	62953
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	15
Peak ID	CHOY
Year	2014
Season	3
First Name	Christian Josef
Last Name	Muendl
Sex	M
Age	0
Birth Date	-
Year of Birth	1968
Calculated Age	46
Citizenship	Germany
Status	Climber
Residence	Stuhr, Lower Saxony, Germany
Occupation	Manager of pet food 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	False
High Point (m)	True
Personal High Point (m)	8188
Summit Date 1	2014-09-28
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	False
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	2437950
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	christian josef muendl
Year of Birth	1968
Year	2014
Age at Expedition	46
Role	Member

Field	Value
ID	62954
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	22
Peak ID	CHOY
Year	2014
Season	3
First Name	Jangbu
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	47
Citizenship	Nepal
Status	H-A Worker
Residence	Patle-4, Okhaldhunga
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	2014-09-29
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	False
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	5th ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437583
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jangbu sherpa
Year of Birth	1967
Year	2014
Age at Expedition	47
Role	Hired

Field	Value
ID	62955
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	20
Peak ID	CHOY
Year	2014
Season	3
First Name	Ang Pasang
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1984
Calculated Age	30
Citizenship	Nepal
Status	H-A Worker
Residence	Patle-4, Okhaldhunga
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	2014-09-29
Summit Date 2	-
Summit Date 3	-
Summit Time 1	-
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	0
Ascent 2	0
Ascent 3	0
O2 Used	False
O2 None	False
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	2443797
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ang pasang sherpa
Year of Birth	1984
Year	2014
Age at Expedition	30
Role	Hired

Field	Value
ID	62956
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	23
Peak ID	CHOY
Year	2014
Season	3
First Name	Tenji/Tenzing
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1982
Calculated Age	32
Citizenship	Nepal
Status	H-A Worker
Residence	Patle-6, Okhaldhunga
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	2014-09-28
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	False
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	3rd ascent of Cho Oyu
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2443054
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tenji/tenzing sherpa
Year of Birth	1982
Year	2014
Age at Expedition	32
Role	Hired

Field	Value
ID	65107
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY14322
Member ID	21
Peak ID	CHOY
Year	2014
Season	3
First Name	Chhewang Karma
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1989
Calculated Age	25
Citizenship	Nepal
Status	H-A Worker
Residence	Patle-4, Okhaldhunga
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)	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	False
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	0
Summit Term	0
HCN	0
Checksum	2445499
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	chhewang karma sherpa
Year of Birth	1989
Year	2014
Age at Expedition	25
Role	Hired

23 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Daniel Lee (Dan) Mazur	M	1960	USA	Leader	Longbranch, Washington	Expedition organizer & leader	Details Other expeditions
Stefan Simchen	M	1974	Germany	Climbing Leader	-	-	Details Other expeditions
Andreas Theodorus Aaldering	M	-	Netherlands	Climber	-	-	Details Other expeditions
Alan Barclay	M	1963	UK	Climber	London, England	Engineer	Details Other expeditions
Glenn Eric Nyberg	M	1957	USA	Climber	Wichita, Kansas	Insurance agent	Details Other expeditions
Marina Vinhas Cortes	F	1975	Portugal	Climber	Corroios, Portugal	Astrophysicist	Details Other expeditions
Fredrik Bergvall	M	-	Sweden	Climber	-	-	Details Other expeditions
Sebastian Dennerlein	M	-	Germany	Climber	-	-	Details Other expeditions
Uwe Werner	M	-	Germany	Climber	-	-	Details Other expeditions
Thomas Hoffman	M	-	Germany	Climber	-	-	Details Other expeditions
Leo Le Wang	M	1988	USA/China	Climber	Princeton Junction, New Jersey	Investment advisor	Details Other expeditions
Steven Carl Janke	M	-	USA	Climber	Columbus, Ohio	US Forest Service firefighter	Details Other expeditions
Troy A. Bacon	M	-	USA	Climber	Frankfort, Indiana	Police chief	Details Other expeditions
Stuart Frink	M	-	USA	Climber	Kent, Washington	Police officer	Details Other expeditions
Kaley Laine Erickson	F	1949	USA	Climber	Truckee, California	US Forest Service battalion chief (retired)	Details Other expeditions
Christoph Forester	M	-	Austria	Climber	-	-	Details Other expeditions
Vilborg Arna (Villa) Gissurardottir	F	1980	Iceland	Climber	Selfoss, Iceland	Professional speaker	Details Other expeditions
Atli Palsson	M	-	Iceland	Climber	-	-	Details Other expeditions
Christian Josef Muendl	M	1968	Germany	Climber	Stuhr, Lower Saxony, Germany	Manager of pet food company	Details Other expeditions
Jangbu Sherpa	M	1967	Nepal	H-A Worker	Patle-4, Okhaldhunga	-	Details Other expeditions
Ang Pasang Sherpa	M	1984	Nepal	H-A Worker	Patle-4, Okhaldhunga	-	Details Other expeditions
Tenji/Tenzing Sherpa	M	1982	Nepal	H-A Worker	Patle-6, Okhaldhunga	-	Details Other expeditions
Chhewang Karma Sherpa	M	1989	Nepal	H-A Worker	Patle-4, Okhaldhunga	-	Details Other expeditions

References

Field	Value
ID	9098
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY14322
Reference ID	01
Year	2014
Type	5
Journal	-
Author	-
Title	http://www.mbl.is/frettir/innlent/2014/10/05/vilborg_komst_a_topp_cho_oyu/
Publisher	-
Publication Date	-
Language	Icelandic
Citation	-
Yak 94	-
Notes	-

Field	Value
ID	9099
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY14322
Reference ID	02
Year	2014
Type	5
Journal	-
Author	-
Title	http://andreaaldering.waarbenjij.nu/reisverslagen/478502/expeditie-cho-oyu-najaar-2014/1
Publisher	-
Publication Date	-
Language	Dutch
Citation	-
Yak 94	-
Notes	-

Field	Value
ID	9100
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY14322
Reference ID	03
Year	2014
Type	5
Journal	-
Author	-
Title	http://www.summitclimb.com/new/default.asp?linktype=r&mtype=smenu&vid=18&nid=293
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

3 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY14322	-	-	http://www.mbl.is/frettir/innlent/2014/10/05/vilborg_komst_a_topp_cho_oyu/	-	-	-
CHOY14322	-	-	http://andreaaldering.waarbenjij.nu/reisverslagen/478502/expeditie-cho-oyu-najaar-2014/1	-	-	-
CHOY14322	-	-	http://www.summitclimb.com/new/default.asp?linktype=r&mtype=smenu&vid=18&nid=293	-	-	-