Lachama Chuli | 2007 E Ridge (up); N Ridge (down)

A Japan expedition to Lachama Chuli in 2007 via E Ridge (up); N Ridge (down), led by Toyoji Wada. Summit reached on 14th September 2007. 9 members recorded.

Expedition Details

Field	Value
ID	6105
Imported	2026-03-06 18:04:49.359634
Expedition ID	LCHA07301
Peak ID	LCHA
Year	2007
Season	3
Host Country	2
Route 1	E Ridge (up); N Ridge (down)
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Toyoji Wada
Sponsor	-
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	1st
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	-
Basecamp Date	2007-08-06
Summit Date	2007-09-14
Summit Time	1240
Summit Days	39
Total Days	49
Termination Date	2007-09-24
Termination Reason	1
Termination Notes	-
High Point (m)	6721
Traverse	True
Ski	False
Paraglide	False
Camps	0
Fixed Rope (m)	0
Total Members	9
Summit Members	7
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(06/08,4800m),C1(01/09,5600m),C2(12/09,6200m),Smt(14/09)
Route Notes	Email from Toyoji Wada - 13 Dec 2008 It was easy to climb the mountain after finding climbing route, but how to escape many crevasses. Arrival at Kubi Kangri base camp - 6 Aug 2007 Arrival at C1 - 1 Sep 2007 Arrival at C2 (and altitude of C2) - 12 Sep 2007 (6200m) Departure from base camp - 24 Sep 2007
Accidents	-
Achievement	-
Agency	None
Commercial Route	False
Standard Route	False
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2457040
Year	2007
Summit Success	True
O2 Summary	None
Route (lowercase)	e ridge (up); n ridge (down)

Members

Field	Value
ID	45855
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	01
Peak ID	LCHA
Year	2007
Season	3
First Name	Toyoji
Last Name	Wada
Sex	M
Age	0
Birth Date	-
Year of Birth	1946
Calculated Age	61
Citizenship	Japan
Status	Leader
Residence	Nagoya, Japan
Occupation	Retired engineer
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)	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	17
HCN	0
Checksum	2429775
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	toyoji wada
Year of Birth	1946
Year	2007
Age at Expedition	61
Role	Leader

Field	Value
ID	46316
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	02
Peak ID	LCHA
Year	2007
Season	3
First Name	Atsushi
Last Name	Senda
Sex	M
Age	0
Birth Date	-
Year of Birth	1974
Calculated Age	33
Citizenship	Japan
Status	Climbing Leader
Residence	Nagoya, Aichi, Japan
Occupation	Sales businessman at opt-electronics
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	True
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6721
Summit Date 1	2007-09-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1240
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	2439958
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	atsushi senda
Year of Birth	1974
Year	2007
Age at Expedition	33
Role	Deputy

Field	Value
ID	46317
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	04
Peak ID	LCHA
Year	2007
Season	3
First Name	Keizou
Last Name	Ishikawa
Sex	M
Age	0
Birth Date	-
Year of Birth	1985
Calculated Age	22
Citizenship	Japan
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	True
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6721
Summit Date 1	2007-09-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1240
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	2443957
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	keizou ishikawa
Year of Birth	1985
Year	2007
Age at Expedition	22
Role	Member

Field	Value
ID	46318
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	06
Peak ID	LCHA
Year	2007
Season	3
First Name	Kohei
Last Name	Kotani
Sex	M
Age	0
Birth Date	-
Year of Birth	1987
Calculated Age	19
Citizenship	Japan
Status	Climber
Residence	Kyoto, Japan
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	True
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6721
Summit Date 1	2007-09-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1240
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	2444933
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kohei kotani
Year of Birth	1987
Year	2007
Age at Expedition	20
Role	Member

Field	Value
ID	46319
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	05
Peak ID	LCHA
Year	2007
Season	3
First Name	Hiroshi
Last Name	Kobayashi
Sex	M
Age	0
Birth Date	-
Year of Birth	1970
Calculated Age	37
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Truck driver
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	True
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6721
Summit Date 1	2007-09-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1240
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	2438528
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	hiroshi kobayashi
Year of Birth	1970
Year	2007
Age at Expedition	37
Role	Member

Field	Value
ID	46320
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	08
Peak ID	LCHA
Year	2007
Season	3
First Name	Yuhki
Last Name	Tani
Sex	M
Age	0
Birth Date	-
Year of Birth	1985
Calculated Age	22
Citizenship	Japan
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	True
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6721
Summit Date 1	2007-09-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1240
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	2444090
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yuhki tani
Year of Birth	1985
Year	2007
Age at Expedition	22
Role	Member

Field	Value
ID	46321
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	03
Peak ID	LCHA
Year	2007
Season	3
First Name	Ryouta
Last Name	Fujii
Sex	M
Age	0
Birth Date	-
Year of Birth	1987
Calculated Age	20
Citizenship	Japan
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	True
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6721
Summit Date 1	2007-09-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1240
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	2444884
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ryouta fujii
Year of Birth	1987
Year	2007
Age at Expedition	20
Role	Member

Field	Value
ID	46322
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	09
Peak ID	LCHA
Year	2007
Season	3
First Name	Soukichi
Last Name	Terakura
Sex	M
Age	0
Birth Date	-
Year of Birth	1946
Calculated Age	60
Citizenship	Japan
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	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	17
HCN	0
Checksum	2430022
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	soukichi terakura
Year of Birth	1946
Year	2007
Age at Expedition	61
Role	Member

Field	Value
ID	46323
Imported	2026-03-06 18:06:05.675609
Expedition ID	LCHA07301
Member ID	07
Peak ID	LCHA
Year	2007
Season	3
First Name	Naoki
Last Name	Shimozato
Sex	M
Age	0
Birth Date	-
Year of Birth	1984
Calculated Age	22
Citizenship	Japan
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	True
Ski	False
Paraglide	False
Speed	False
High Point (m)	True
Personal High Point (m)	6721
Summit Date 1	2007-09-14
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1240
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	1
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	2443865
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	naoki shimozato
Year of Birth	1984
Year	2007
Age at Expedition	23
Role	Member

9 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Toyoji Wada	M	1946	Japan	Leader	Nagoya, Japan	Retired engineer	Details Other expeditions
Atsushi Senda	M	1974	Japan	Climbing Leader	Nagoya, Aichi, Japan	Sales businessman at opt-electronics	Details Other expeditions
Keizou Ishikawa	M	1985	Japan	Climber	-	-	Details Other expeditions
Kohei Kotani	M	1987	Japan	Climber	Kyoto, Japan	-	Details Other expeditions
Hiroshi Kobayashi	M	1970	Japan	Climber	Tokyo, Japan	Truck driver	Details Other expeditions
Yuhki Tani	M	1985	Japan	Climber	-	-	Details Other expeditions
Ryouta Fujii	M	1987	Japan	Climber	-	-	Details Other expeditions
Soukichi Terakura	M	1946	Japan	Climber	-	-	Details Other expeditions
Naoki Shimozato	M	1984	Japan	Climber	-	-	Details Other expeditions

References

Field	Value
ID	7539
Imported	2026-03-06 18:06:36.307770
Expedition ID	LCHA07301
Reference ID	01
Year	2007
Type	2
Journal	AAJ
Author	Wada, Toyoji
Title	-
Publisher	-
Publication Date	2008
Language	-
Citation	82:449-450 (2008)
Yak 94	-
Notes	-

Field	Value
ID	7547
Imported	2026-03-06 18:06:36.307770
Expedition ID	LCHA07301
Reference ID	02
Year	2007
Type	2
Journal	JAN
Author	Wada, Toyoji
Title	Mountains in the Headwaters of the Yalung Tsangpo
Publisher	-
Publication Date	2008
Language	-
Citation	9:27-32 (May 2008)
Yak 94	-
Notes	-

Field	Value
ID	10569
Imported	2026-03-06 18:06:36.307770
Expedition ID	LCHA07301
Reference ID	03
Year	2007
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12200844902/Asia-Tibet-Himalaya-Everest-Kubi-Kangri-6721m-First-Ascent-Glacier-Measurements
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

Field	Value
ID	14013
Imported	2026-03-06 18:06:36.307770
Expedition ID	LCHA07301
Reference ID	04
Year	2007
Type	5
Journal	-
Author	-
Title	http://jac.or.jp/english/images/vol9/jan-vol9-27-32.pdf
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

4 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
LCHA07301	AAJ	Wada, Toyoji	-	-	82:449-450 (2008)	-
LCHA07301	JAN	Wada, Toyoji	Mountains in the Headwaters of the Yalung Tsangpo	-	9:27-32 (May 2008)	-
LCHA07301	-	-	http://publications.americanalpineclub.org/articles/12200844902/Asia-Tibet-Himalaya-Everest-Kubi-Kangri-6721m-First-Ascent-Glacier-Measurements	-	-	-
LCHA07301	-	-	http://jac.or.jp/english/images/vol9/jan-vol9-27-32.pdf	-	-	-