Cho Oyu | 2016 NW side

A USA expedition to Cho Oyu in 2016 via NW side, led by Ben Jones. Summit reached on 30th September 2016. 10 members recorded.

Expedition Details

Field	Value
ID	9223
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY16310
Peak ID	CHOY
Year	2016
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	USA
Leaders	Ben Jones
Sponsor	Alpine Ascents International (AAI) Cho Oyu Expedition 2016
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	Australia
Approach	Lhasa->Shigatse->Tingri
Basecamp Date	2016-09-06
Summit Date	2016-09-30
Summit Time	0900
Summit Days	24
Total Days	27
Termination Date	2016-10-03
Termination Reason	1
Termination Notes	-
High Point (m)	8188
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	8
Summit Members	4
Member Deaths	0
Total Hired	5
Summit Hired	2
Hired Deaths	0
No Hired	False
O2 Used	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	Smt(30/09)
Route Notes	BC 06/09 5000m ABC 11/09 5700m C1 17/09 6400m C2 22/09 7140m Smt 30/09 by Alexander, Jones, Lawless, Peterson, Kami Rita, Lhakpa Rita at 9 am. Summit team left C2 at 1 am. Straightforward climb. They stayed about 40 min on the summit and descended to C2 at 11:30 am. Ayvazian, Maxood, Riding and Schaeffer reached C1 on 17 Sept. Ayvazian and Maxood suffered from HAPE. Riding had a death in the family and left the expedition early. Schaeffer was too unfit to climb the mountain. They all left ABC on 21 Sept. Oxygen: Taken and used from C2 to top to C2 by members and Sherpas. Sherpas: Lakpa Rita Sherpa (Sirdar), Thami, 09/09/1966 Kami Rita Sherpa, Thami, 17/01/1970
Accidents	-
Achievement	-
Agency	Shangri-La Nepal Treks
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2463323
Year	2016
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw side

Members

Field	Value
ID	67263
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	01
Peak ID	CHOY
Year	2016
Season	3
First Name	Benjamin Mason (Ben)
Last Name	Jones
Sex	M
Age	0
Birth Date	-
Year of Birth	1978
Calculated Age	38
Citizenship	USA
Status	Leader
Residence	Jackson, Wyoming
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	2016-09-30
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	C2 to smt 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	2441646
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	benjamin mason (ben) jones
Year of Birth	1978
Year	2016
Age at Expedition	38
Role	Leader

Field	Value
ID	67264
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	02
Peak ID	CHOY
Year	2016
Season	3
First Name	Malcolm John
Last Name	Alexander
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	57
Citizenship	Australia
Status	Climber
Residence	Bellevue, Washington
Occupation	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	2016-09-30
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	C2 to smt 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	2434592
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	malcolm john alexander
Year of Birth	1959
Year	2016
Age at Expedition	57
Role	Member

Field	Value
ID	67265
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	03
Peak ID	CHOY
Year	2016
Season	3
First Name	Philip John
Last Name	Ayvazian
Sex	M
Age	0
Birth Date	-
Year of Birth	1960
Calculated Age	55
Citizenship	USA
Status	Climber
Residence	Paxton, Massachusetts
Occupation	Urologist
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)	6400
Summit Date 1	2016-09-17
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	2435145
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	philip john ayvazian
Year of Birth	1960
Year	2016
Age at Expedition	56
Role	Member

Field	Value
ID	67266
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	04
Peak ID	CHOY
Year	2016
Season	3
First Name	Jason Lyle
Last Name	Lawless
Sex	M
Age	0
Birth Date	-
Year of Birth	1972
Calculated Age	44
Citizenship	USA
Status	Climber
Residence	South Wilmington, Illinois
Occupation	Laborer
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	2016-09-30
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	C2 to smt 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	2439312
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	jason lyle lawless
Year of Birth	1972
Year	2016
Age at Expedition	44
Role	Member

Field	Value
ID	67267
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	05
Peak ID	CHOY
Year	2016
Season	3
First Name	Sepehr Steven
Last Name	Maxood
Sex	M
Age	0
Birth Date	-
Year of Birth	1965
Calculated Age	51
Citizenship	USA
Status	Climber
Residence	Walls Walla, Washington
Occupation	Physicain (cardiologist)
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)	6400
Summit Date 1	2016-09-17
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	2436785
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	sepehr steven maxood
Year of Birth	1965
Year	2016
Age at Expedition	51
Role	Member

Field	Value
ID	67268
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	06
Peak ID	CHOY
Year	2016
Season	3
First Name	John Scott
Last Name	Peterson
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	56
Citizenship	USA
Status	Climber
Residence	Boulder, Colorado
Occupation	Retired
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	2016-09-30
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	C2 to smt 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	2434823
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	john scott peterson
Year of Birth	1959
Year	2016
Age at Expedition	57
Role	Member

Field	Value
ID	67269
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	07
Peak ID	CHOY
Year	2016
Season	3
First Name	Keith Elmer
Last Name	Riding
Sex	M
Age	0
Birth Date	-
Year of Birth	1967
Calculated Age	48
Citizenship	USA
Status	Climber
Residence	Cleveland, Mississippi
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	False
High Point (m)	False
Personal High Point (m)	6400
Summit Date 1	2016-09-17
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	2437717
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	keith elmer riding
Year of Birth	1967
Year	2016
Age at Expedition	49
Role	Member

Field	Value
ID	67270
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	08
Peak ID	CHOY
Year	2016
Season	3
First Name	David Neas
Last Name	Schaeffer
Sex	M
Age	0
Birth Date	-
Year of Birth	1956
Calculated Age	60
Citizenship	USA
Status	Climber
Residence	Atlanta, Georgia
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	False
High Point (m)	False
Personal High Point (m)	6400
Summit Date 1	2016-09-17
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	2433625
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	david neas schaeffer
Year of Birth	1956
Year	2016
Age at Expedition	60
Role	Member

Field	Value
ID	67271
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	09
Peak ID	CHOY
Year	2016
Season	3
First Name	Kami Rita (Topke)
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1970
Calculated Age	46
Citizenship	Nepal
Status	H-A Worker
Residence	Thami, 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	2016-09-30
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	C2 to smt 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	Brother of Lhakpa Rita
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2438508
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kami rita (topke) sherpa
Year of Birth	1970
Year	2016
Age at Expedition	46
Role	Hired

Field	Value
ID	67272
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY16310
Member ID	10
Peak ID	CHOY
Year	2016
Season	3
First Name	Lhakpa Rita
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	50
Citizenship	Nepal
Status	H-A Worker
Residence	Thami, 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	2016-09-30
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	True
O2 None	False
O2 Climb	True
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	C2 to smt 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	Brother of Kami Rita (Topke)
Necrology	-
Summit Bid	5
Summit Term	1
HCN	0
Checksum	2437286
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	lhakpa rita sherpa
Year of Birth	1966
Year	2016
Age at Expedition	50
Role	Hired

10 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Benjamin Mason (Ben) Jones	M	1978	USA	Leader	Jackson, Wyoming	Alpine guide	Details Other expeditions
Malcolm John Alexander	M	1959	Australia	Climber	Bellevue, Washington	Consultant	Details Other expeditions
Philip John Ayvazian	M	1960	USA	Climber	Paxton, Massachusetts	Urologist	Details Other expeditions
Jason Lyle Lawless	M	1972	USA	Climber	South Wilmington, Illinois	Laborer	Details Other expeditions
Sepehr Steven Maxood	M	1965	USA	Climber	Walls Walla, Washington	Physicain (cardiologist)	Details Other expeditions
John Scott Peterson	M	1959	USA	Climber	Boulder, Colorado	Retired	Details Other expeditions
Keith Elmer Riding	M	1967	USA	Climber	Cleveland, Mississippi	Engineer	Details Other expeditions
David Neas Schaeffer	M	1956	USA	Climber	Atlanta, Georgia	Attorney	Details Other expeditions
Kami Rita (Topke) Sherpa	M	1970	Nepal	H-A Worker	Thami, Khumbu	-	Details Other expeditions
Lhakpa Rita Sherpa	M	1966	Nepal	H-A Worker	Thami, Khumbu	-	Details Other expeditions

References

Field	Value
ID	9791
Imported	2026-03-06 18:06:36.307770
Expedition ID	CHOY16310
Reference ID	01
Year	2016
Type	5
Journal	-
Author	-
Title	https://alpineascentschooyu.wordpress.com
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

1 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
CHOY16310	-	-	https://alpineascentschooyu.wordpress.com	-	-	-