Peak 29 | 1970 E Ridge

A Japan expedition to Peak 29 in 1970 via E Ridge, led by Syotaro Mizuno. Summit reached on 19th October 1970. 13 members recorded.

Expedition Details

Field	Value
ID	2472
Imported	2026-03-06 18:04:49.359634
Expedition ID	PK2970301
Peak ID	PK29
Year	1970
Season	3
Host Country	1
Route 1	E Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Syotaro Mizuno
Sponsor	Himalayan Expedition of Osaka University Mountaineering Club
Success 1	False
Success 2	False
Success 3	False
Success 4	False
Ascent 1	1st unverified
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	True
Disputed	False
Countries	-
Approach	-
Basecamp Date	1970-09-12
Summit Date	1970-10-19
Summit Time	-
Summit Days	37
Total Days	42
Termination Date	1970-10-24
Termination Reason	6
Termination Notes	Success claimed, but summiters died in descent
High Point (m)	7871
Traverse	False
Ski	False
Paraglide	False
Camps	5
Fixed Rope (m)	0
Total Members	11
Summit Members	0
Member Deaths	1
Total Hired	10
Summit Hired	0
Hired Deaths	1
No Hired	False
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(12/09,4000m),C1(20/09,5100m),C2(23/09,5800m),C3(09/10,6250m),C4(11/10,6900m),C5(18/10,7500m),Smt(19/10)
Route Notes	Note: Ohsasa's name given as Ozawa in JAC 1971 Ohsasa - 10 Nov 70 Ohsasa and Ishihara arrive today and others later this evening. No 2nd attempt because of accident. Ohsasa reached 7500m last C5. Peak very difficult above 7000m because steepness, very hard ice. Almost whole route above C4 (6900m) to C5 fixed rope. 4 members reached C5: Ishihara Ohsasa Ono Tai Miss Saigusa's high point was C2 5800m. Fatal accident. No member saw it happen. Watanabe and Lhakpa Tsering at 1:15 pm could be seen from C3 just below summit and again at 3:00 pm could them see perhaps about 7800m and assumed they reached summit between these 2 times. They fell almost at C5, nearly 2 or 3 pitches above C5; fell to very near C4 which at 6900m. Cause of fall not known. Watanabe head injury; cremated at base camp and ashes now at embassy for taking to Japan. Lhakpa Tsering same head injury and spine broken. Climbed by East Ridge (last year's expedition used almost same route). This year had last year's experience: 4 members this expedition twice or 3 times attacked summit last year and these men thus knew route. Last year autumn 7400m highest point reached. Last year little late and this year earlier start and C4 establish very early this year. Last year C4 was highest camp whereas this year had C5, extra camp, in crevasse. BC - 4000m C1 - 5100m C2 - 5800m C3 - 6200m C4 - 6900m C5 - 7500m Small rock found near Lhakpa Tsering's body, probably summit rock.
Accidents	2 summiters killed in fall
Achievement	-
Agency	-
Commercial Route	-
Standard Route	-
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2444199
Year	1970
Summit Success	False
O2 Summary	None
Route (lowercase)	e ridge

Members

Field	Value
ID	19782
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	01
Peak ID	PK29
Year	1970
Season	3
First Name	Shotaro
Last Name	Mizuno
Sex	M
Age	0
Birth Date	-
Year of Birth	1907
Calculated Age	63
Citizenship	Japan
Status	Leader
Residence	Kobe, Hyogo, Japan
Occupation	Professor of medicine
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	-
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	0
Summit Term	0
HCN	0
Checksum	2415751
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	shotaro mizuno
Year of Birth	1907
Year	1970
Age at Expedition	63
Role	Leader

Field	Value
ID	19783
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	02
Peak ID	PK29
Year	1970
Season	3
First Name	Senya
Last Name	Sumiyoshi
Sex	M
Age	0
Birth Date	-
Year of Birth	1926
Calculated Age	43
Citizenship	Japan
Status	Deputy Leader
Residence	Nishinomiya, Hyogo, Japan
Occupation	Physician & lecturer in medicine at Osaka University
Leader	False
Deputy	True
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	-
High Point (m)	False
Personal High Point (m)	6250
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	15
HCN	0
Checksum	2422930
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	senya sumiyoshi
Year of Birth	1926
Year	1970
Age at Expedition	44
Role	Deputy

Field	Value
ID	19784
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	10
Peak ID	PK29
Year	1970
Season	3
First Name	Akihiro
Last Name	Toyosaka
Sex	M
Age	0
Birth Date	-
Year of Birth	1941
Calculated Age	29
Citizenship	Japan
Status	Climber
Residence	Osaka, Japan
Occupation	Surgeon, Osaka Police Hospital
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	-
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	0
Summit Term	0
HCN	0
Checksum	2428185
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	akihiro toyosaka
Year of Birth	1941
Year	1970
Age at Expedition	29
Role	Member

Field	Value
ID	19785
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	11
Peak ID	PK29
Year	1970
Season	3
First Name	Hiroshi
Last Name	Watanabe
Sex	M
Age	0
Birth Date	-
Year of Birth	1942
Calculated Age	27
Citizenship	Japan
Status	Climber
Residence	Osaka, Japan
Occupation	Researcher, cell physiology, Faculty of Science, Osaka Univ
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	True
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	7871
Summit Date 1	1970-10-19
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	True
Death Date	1970-10-19
Death Time	1630
Death Type	4
Death Height (m)	7000
Death Class	5
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	Success not verifiable
Necrology	(1942-1970) Died 19 Oct 1970 on Peak 29 from fall
Summit Bid	4
Summit Term	5
HCN	0
Checksum	2428728
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	1
Name (lowercase)	hiroshi watanabe
Year of Birth	1942
Year	1970
Age at Expedition	28
Role	Member

Field	Value
ID	19786
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	06
Peak ID	PK29
Year	1970
Season	3
First Name	Shuichi
Last Name	Ozawa
Sex	M
Age	0
Birth Date	-
Year of Birth	1942
Calculated Age	28
Citizenship	Japan
Status	Climber
Residence	Osaka, Japan
Occupation	Engineer of Sumitomo Shipbuilding & Heavy Machinery Co.
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	-
High Point (m)	False
Personal High Point (m)	7500
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	15
HCN	0
Checksum	2428541
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	shuichi ozawa
Year of Birth	1942
Year	1970
Age at Expedition	28
Role	Member

Field	Value
ID	19787
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	09
Peak ID	PK29
Year	1970
Season	3
First Name	Yoshiki
Last Name	Tanaka
Sex	M
Age	0
Birth Date	-
Year of Birth	1947
Calculated Age	23
Citizenship	Japan
Status	Climber
Residence	Hyogo-ken, Japan
Occupation	Student of metallurgy, Faculty of Engineering, Osaka University
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	-
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	0
Summit Term	0
HCN	0
Checksum	2430297
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yoshiki tanaka
Year of Birth	1947
Year	1970
Age at Expedition	23
Role	Member

Field	Value
ID	19788
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	03
Peak ID	PK29
Year	1970
Season	3
First Name	Toshio
Last Name	Ishihara
Sex	M
Age	0
Birth Date	-
Year of Birth	1946
Calculated Age	24
Citizenship	Japan
Status	Climber
Residence	Okayama-shi, Okayama, Japan
Occupation	Researcher of chemistry, Faculty of Science, Osaka University
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	-
High Point (m)	False
Personal High Point (m)	7500
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	15
HCN	0
Checksum	2430066
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	toshio ishihara
Year of Birth	1946
Year	1970
Age at Expedition	24
Role	Member

Field	Value
ID	19789
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	04
Peak ID	PK29
Year	1970
Season	3
First Name	Yoshio
Last Name	Kuroiwa
Sex	M
Age	0
Birth Date	-
Year of Birth	1947
Calculated Age	23
Citizenship	Japan
Status	Climber
Residence	Kochi-shi, Kochi, Japan
Occupation	Student of economics, Osaka University
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	-
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	0
Summit Term	0
HCN	0
Checksum	2430521
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yoshio kuroiwa
Year of Birth	1947
Year	1970
Age at Expedition	23
Role	Member

Field	Value
ID	19790
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	05
Peak ID	PK29
Year	1970
Season	3
First Name	Yoshiteru
Last Name	Ono
Sex	M
Age	0
Birth Date	-
Year of Birth	1944
Calculated Age	26
Citizenship	Japan
Status	Climber
Residence	Ehime, Japan
Occupation	Assistant lecturer, civil engineering, Osaka University
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	-
High Point (m)	False
Personal High Point (m)	7500
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	15
HCN	0
Checksum	2429303
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	yoshiteru ono
Year of Birth	1944
Year	1970
Age at Expedition	26
Role	Member

Field	Value
ID	19791
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	08
Peak ID	PK29
Year	1970
Season	3
First Name	Hideo
Last Name	Tai
Sex	M
Age	0
Birth Date	-
Year of Birth	1938
Calculated Age	32
Citizenship	Japan
Status	Climber
Residence	-
Occupation	Assistant lecturer, civil engineering, Osaka University
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	-
High Point (m)	False
Personal High Point (m)	7500
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	15
HCN	0
Checksum	2427031
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	hideo tai
Year of Birth	1938
Year	1970
Age at Expedition	32
Role	Member

Field	Value
ID	19792
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	07
Peak ID	PK29
Year	1970
Season	3
First Name	Reiko
Last Name	Saigusa
Sex	F
Age	0
Birth Date	-
Year of Birth	1932
Calculated Age	37
Citizenship	Japan
Status	Climber
Residence	Tokyo, Japan
Occupation	Graduate of Osaka University in medicinal plants; now student
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)	5800
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	0
Summit Term	0
HCN	0
Checksum	2425160
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	reiko saigusa
Year of Birth	1932
Year	1970
Age at Expedition	38
Role	Member

Field	Value
ID	22442
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	13
Peak ID	PK29
Year	1970
Season	3
First Name	Lhakpa Tsering
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	-
Calculated Age	34
Citizenship	Nepal
Status	H-A Worker
Residence	Namche Bazar, 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	True
Disputed	False
Solo	False
Traverse	False
Ski	False
Paraglide	False
Speed	-
High Point (m)	True
Personal High Point (m)	7871
Summit Date 1	1970-10-19
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	True
Death Date	1970-10-19
Death Time	1630
Death Type	4
Death Height (m)	7000
Death Class	5
AMS	False
Weather	False
Injury	False
Injury Date	-
Injury Time	-
Injury Type	0
Injury Height (m)	0
Death Notes	-
Member Notes	Success not verifiable
Necrology	(....-1970) Died 19 Oct 1970 on Peak 29 from fall
Summit Bid	4
Summit Term	5
HCN	0
Checksum	-6
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	1
Name (lowercase)	lhakpa tsering sherpa
Year of Birth	-
Year	1970
Age at Expedition	-
Role	Hired

Field	Value
ID	26749
Imported	2026-03-06 18:06:05.675609
Expedition ID	PK2970301
Member ID	12
Peak ID	PK29
Year	1970
Season	3
First Name	Ila Tshering
Last Name	Sherpa
Sex	M
Age	0
Birth Date	-
Year of Birth	1936
Calculated Age	34
Citizenship	Nepal
Status	Sirdar
Residence	Namche Bazar, 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	-
High Point (m)	False
Personal High Point (m)	7500
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	HC #91?
Necrology	-
Summit Bid	1
Summit Term	15
HCN	91
Checksum	45
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	ila tshering sherpa
Year of Birth	1936
Year	1970
Age at Expedition	34
Role	Hired

13 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Shotaro Mizuno	M	1907	Japan	Leader	Kobe, Hyogo, Japan	Professor of medicine	Details Other expeditions
Senya Sumiyoshi	M	1926	Japan	Deputy Leader	Nishinomiya, Hyogo, Japan	Physician & lecturer in medicine at Osaka University	Details Other expeditions
Akihiro Toyosaka	M	1941	Japan	Climber	Osaka, Japan	Surgeon, Osaka Police Hospital	Details Other expeditions
Hiroshi Watanabe	M	1942	Japan	Climber	Osaka, Japan	Researcher, cell physiology, Faculty of Science, Osaka Univ	Details Other expeditions
Shuichi Ozawa	M	1942	Japan	Climber	Osaka, Japan	Engineer of Sumitomo Shipbuilding & Heavy Machinery Co.	Details Other expeditions
Yoshiki Tanaka	M	1947	Japan	Climber	Hyogo-ken, Japan	Student of metallurgy, Faculty of Engineering, Osaka University	Details Other expeditions
Toshio Ishihara	M	1946	Japan	Climber	Okayama-shi, Okayama, Japan	Researcher of chemistry, Faculty of Science, Osaka University	Details Other expeditions
Yoshio Kuroiwa	M	1947	Japan	Climber	Kochi-shi, Kochi, Japan	Student of economics, Osaka University	Details Other expeditions
Yoshiteru Ono	M	1944	Japan	Climber	Ehime, Japan	Assistant lecturer, civil engineering, Osaka University	Details Other expeditions
Hideo Tai	M	1938	Japan	Climber	-	Assistant lecturer, civil engineering, Osaka University	Details Other expeditions
Reiko Saigusa	F	1932	Japan	Climber	Tokyo, Japan	Graduate of Osaka University in medicinal plants; now student	Details Other expeditions
Lhakpa Tsering Sherpa	M	-	Nepal	H-A Worker	Namche Bazar, Khumbu	-	Details Other expeditions
Ila Tshering Sherpa	M	1936	Nepal	Sirdar	Namche Bazar, Khumbu	-	Details Other expeditions

References

Field	Value
ID	1156
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	01
Year	1970
Type	2
Journal	HJ
Author	Sumiyoshi, Senya
Title	Peak 29 Expeds by the Osaka Univ Mountain Club, 1961-1970
Publisher	-
Publication Date	1970
Language	-
Citation	30:147-153 (1970)
Yak 94	-
Notes	-

Field	Value
ID	1282
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	02
Year	1970
Type	2
Journal	AAJ
Author	Sumiyoshi, Senya
Title	-
Publisher	-
Publication Date	1971
Language	-
Citation	45:439-440 (1971)
Yak 94	-
Notes	-

Field	Value
ID	1635
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	03
Year	1970
Type	2
Journal	JAC
Author	Sumiyoshi, Senya
Title	P-29, 1970
Publisher	-
Publication Date	1971
Language	English
Citation	66:21-24 (1971)
Yak 94	-
Notes	Route maps and photos in English included in Japanese section

Field	Value
ID	3609
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	04
Year	1970
Type	3
Journal	MM
Author	-
Title	-
Publisher	-
Publication Date	1971
Language	-
Citation	13:7 (Jan 1971)
Yak 94	-
Notes	-

Field	Value
ID	3616
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	05
Year	1970
Type	3
Journal	MM
Author	-
Title	-
Publisher	-
Publication Date	1971
Language	-
Citation	14:5 (Mar 1971)
Yak 94	-
Notes	-

Field	Value
ID	3650
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	06
Year	1970
Type	3
Journal	MM
Author	-
Title	Recent Himalayan Ascents
Publisher	-
Publication Date	1972
Language	-
Citation	22:11-19 (Jul 1972)
Yak 94	-
Notes	-

Field	Value
ID	3708
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	07
Year	1970
Type	3
Journal	MM
Author	Dyhrenfurth, G. O. & Dyhrenfurth, Norman
Title	Peak 29
Publisher	-
Publication Date	1975
Language	-
Citation	43:37-39 (May 1975)
Yak 94	-
Notes	-

Field	Value
ID	5989
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	08
Year	1970
Type	2
Journal	JAC
Author	Sumiyoshi, Senya
Title	P-29, 1970
Publisher	-
Publication Date	1971
Language	Japanese
Citation	66:93-108 (1971)
Yak 94	-
Notes	Includes route maps and photos in English

Field	Value
ID	13217
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	09
Year	1970
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12197143902/Asia-Nepal-Peak-29
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

Field	Value
ID	13707
Imported	2026-03-06 18:06:36.307770
Expedition ID	PK2970301
Reference ID	10
Year	1970
Type	5
Journal	-
Author	-
Title	https://www.himalayanclub.org/hj/30/10/peak-29-expeditions-by-the-osaka-university-mountaineering-club-1961-1970/
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

10 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
PK2970301	HJ	Sumiyoshi, Senya	Peak 29 Expeds by the Osaka Univ Mountain Club, 1961-1970	-	30:147-153 (1970)	-
PK2970301	AAJ	Sumiyoshi, Senya	-	-	45:439-440 (1971)	-
PK2970301	JAC	Sumiyoshi, Senya	P-29, 1970	-	66:21-24 (1971)	-
PK2970301	MM	-	-	-	13:7 (Jan 1971)	-
PK2970301	MM	-	-	-	14:5 (Mar 1971)	-
PK2970301	MM	-	Recent Himalayan Ascents	-	22:11-19 (Jul 1972)	-
PK2970301	MM	Dyhrenfurth, G. O. & Dyhrenfurth, Norman	Peak 29	-	43:37-39 (May 1975)	-
PK2970301	JAC	Sumiyoshi, Senya	P-29, 1970	-	66:93-108 (1971)	-
PK2970301	-	-	http://publications.americanalpineclub.org/articles/12197143902/Asia-Nepal-Peak-29	-	-	-
PK2970301	-	-	https://www.himalayanclub.org/hj/30/10/peak-29-expeditions-by-the-osaka-university-mountaineering-club-1961-1970/	-	-	-