Cho Oyu | 2010 NW side

A Japan expedition to Cho Oyu in 2010 via NW side, led by Hirotaka Takeuchi. Summit reached on 30th September 2010. 3 members recorded.

Expedition Details

Field	Value
ID	6838
Imported	2026-03-06 18:04:49.359634
Expedition ID	CHOY10307
Peak ID	CHOY
Year	2010
Season	3
Host Country	2
Route 1	NW side
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Hirotaka Takeuchi
Sponsor	Japan Cho Oyu Expedition
Success 1	False
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	2010-09-03
Summit Date	2010-09-30
Summit Time	-
Summit Days	27
Total Days	31
Termination Date	2010-10-04
Termination Reason	5
Termination Notes	Abandoned at 7700m due to bad snow conditions
High Point (m)	7700
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	3
Summit Members	0
Member Deaths	0
Total Hired	0
Summit Hired	0
Hired Deaths	0
No Hired	True
O2 Used	False
O2 None	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Taken	False
O2 Unknown	False
Other Summits	-
Campsites	BC(03/09,4900m),ABC(07/09,5680m),C1(13/09,6420m),C2(19/09,7100m),xxx(30/09,7700m)
Route Notes	From ABC on 28 September Nakajima and Takeuchi moved up to C1, on the 29th up to C2. At midnight of 29/30 September they set out for the summit. At 7:00 am (NST) on the 30th they got to 7700m, when ice blocks in avalanche debris were threatening to come down. They retreated all the way to ABC, where they arrived at 7:07 pm, and abandoned their climb because of the very bad snow conditions including avalanche danger.
Accidents	-
Achievement	-
Agency	Thamserku Trekking
Commercial Route	True
Standard Route	True
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2461035
Year	2010
Summit Success	False
O2 Summary	None
Route (lowercase)	nw side

Members

Field	Value
ID	51008
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY10307
Member ID	02
Peak ID	CHOY
Year	2010
Season	3
First Name	Yoshihiro
Last Name	Aso
Sex	M
Age	0
Birth Date	-
Year of Birth	1974
Calculated Age	35
Citizenship	Japan
Status	Climber
Residence	Kurokawa-gun, Miyagi, Japan
Occupation	Office worker
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	True
O2 Climb	False
O2 Descent	False
O2 Sleep	False
O2 Medical	False
O2 Notes	-
Death	False
Death Date	-
Death Time	-
Death Type	0
Death Height (m)	0
Death Class	0
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	19
HCN	0
Checksum	2440418
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yoshihiro aso
Year of Birth	1974
Year	2010
Age at Expedition	36
Role	Member

Field	Value
ID	51009
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY10307
Member ID	03
Peak ID	CHOY
Year	2010
Season	3
First Name	Kenro
Last Name	Nakajima
Sex	M
Age	0
Birth Date	-
Year of Birth	1984
Calculated Age	25
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Office worker
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)	True
Personal High Point (m)	7700
Summit Date 1	2010-09-30
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	(1984-2024) Died ~25 July 2024 on K2 from falling
Summit Bid	4
Summit Term	4
HCN	0
Checksum	2444011
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kenro nakajima
Year of Birth	1984
Year	2010
Age at Expedition	26
Role	Member

Field	Value
ID	51010
Imported	2026-03-06 18:06:05.675609
Expedition ID	CHOY10307
Member ID	01
Peak ID	CHOY
Year	2010
Season	3
First Name	Hirotaka
Last Name	Takeuchi
Sex	M
Age	0
Birth Date	-
Year of Birth	1971
Calculated Age	39
Citizenship	Japan
Status	Leader
Residence	Tokyo, Japan
Occupation	Professional alpinist
Leader	True
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)	True
Personal High Point (m)	7700
Summit Date 1	2010-09-30
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	4
Summit Term	4
HCN	0
Checksum	2438991
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	hirotaka takeuchi
Year of Birth	1971
Year	2010
Age at Expedition	39
Role	Leader

3 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Yoshihiro Aso	M	1974	Japan	Climber	Kurokawa-gun, Miyagi, Japan	Office worker	Details Other expeditions
Kenro Nakajima	M	1984	Japan	Climber	Tokyo, Japan	Office worker	Details Other expeditions
Hirotaka Takeuchi	M	1971	Japan	Leader	Tokyo, Japan	Professional alpinist	Details Other expeditions

References

0 recorded references.