Pumori | 1990 SE Face-S Ridge

A Japan expedition to Pumori in 1990 via SE Face-S Ridge, led by Kiyoshi Ishii. Summit reached on 17th October 1990. 3 members recorded.

Expedition Details

Field	Value
ID	688
Imported	2026-03-06 18:04:49.359634
Expedition ID	PUMO90308
Peak ID	PUMO
Year	1990
Season	3
Host Country	1
Route 1	SE Face-S Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Kiyoshi Ishii
Sponsor	Kintaro-no-kai Alpine Pumori Expedition 1990
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	1990-10-07
Summit Date	1990-10-17
Summit Time	-
Summit Days	10
Total Days	11
Termination Date	1990-10-18
Termination Reason	5
Termination Notes	Abandoned at 6200m due to dangerous snow conditions
High Point (m)	6200
Traverse	False
Ski	False
Paraglide	False
Camps	2
Fixed Rope (m)	0
Total Members	3
Summit Members	0
Member Deaths	0
Total Hired	1
Summit Hired	0
Hired Deaths	0
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(07/10,5300m),C1(12/10,5800m),C2(17/10,6200m),xxx(17/10,6200m)
Route Notes	BC at left side of lakes C1 on SE Face above and west-northwest of lakes C2 at Col of S Ridge High point at C2. Snow above C2 dangerous: big snow mushrooms. 2 nights in C2 for Ishii and Mimura, 1 night for Hashigawa who went down on 18 Oct with altitude sickness and went to BC 18th, Pheriche aid post 19th and recovered there with medication (no oxygen) and Gamov bag. Ishii comes back to Pumori for solo ascent of same route (no mushrooms if very good weather) in Autumn 1992.
Accidents	Hashegawa edema
Achievement	-
Agency	Cosmo Treks
Commercial Route	-
Standard Route	-
Primary Route	False
Primary Member	False
Primary Reference	-
Primary ID	-
Checksum	2451612
Year	1990
Summit Success	False
O2 Summary	None
Route (lowercase)	se face-s ridge

Members

Field	Value
ID	20231
Imported	2026-03-06 18:06:05.675609
Expedition ID	PUMO90308
Member ID	02
Peak ID	PUMO
Year	1990
Season	3
First Name	Mamoru
Last Name	Hasegawa
Sex	M
Age	0
Birth Date	-
Year of Birth	1959
Calculated Age	30
Citizenship	Japan
Status	Climber
Residence	Myoko-kogen, Niigata, Japan
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	-
High Point (m)	True
Personal High Point (m)	6200
Summit Date 1	1990-10-17
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	True
Injury Date	1990-10-17
Injury Time	-
Injury Type	1
Injury Height (m)	6200
Death Notes	-
Member Notes	-
Necrology	-
Summit Bid	1
Summit Term	4
HCN	0
Checksum	2435027
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	mamoru hasegawa
Year of Birth	1959
Year	1990
Age at Expedition	31
Role	Member

Field	Value
ID	20232
Imported	2026-03-06 18:06:05.675609
Expedition ID	PUMO90308
Member ID	01
Peak ID	PUMO
Year	1990
Season	3
First Name	Kiyoshi
Last Name	Ishii
Sex	M
Age	0
Birth Date	-
Year of Birth	1948
Calculated Age	41
Citizenship	Japan
Status	Leader
Residence	Hatano, Kanagawa, Japan
Occupation	Manager of mountain cottage
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)	True
Personal High Point (m)	6200
Summit Date 1	1990-10-17
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	4
HCN	0
Checksum	2430993
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	kiyoshi ishii
Year of Birth	1948
Year	1990
Age at Expedition	42
Role	Leader

Field	Value
ID	20233
Imported	2026-03-06 18:06:05.675609
Expedition ID	PUMO90308
Member ID	03
Peak ID	PUMO
Year	1990
Season	3
First Name	Masahiko
Last Name	Mimura
Sex	M
Age	0
Birth Date	-
Year of Birth	1964
Calculated Age	26
Citizenship	Japan
Status	Climber
Residence	Fujisawa, Kanagawa, Japan
Occupation	Paper salesman
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)	True
Personal High Point (m)	6200
Summit Date 1	1990-10-17
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	4
HCN	0
Checksum	2436627
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	masahiko mimura
Year of Birth	1964
Year	1990
Age at Expedition	26
Role	Member

3 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Mamoru Hasegawa	M	1959	Japan	Climber	Myoko-kogen, Niigata, Japan	Engineer	Details Other expeditions
Kiyoshi Ishii	M	1948	Japan	Leader	Hatano, Kanagawa, Japan	Manager of mountain cottage	Details Other expeditions
Masahiko Mimura	M	1964	Japan	Climber	Fujisawa, Kanagawa, Japan	Paper salesman	Details Other expeditions

References

Field	Value
ID	792
Imported	2026-03-06 18:06:36.307770
Expedition ID	PUMO90308
Reference ID	01
Year	1990
Type	2
Journal	AAJ
Author	Hawley, Elizabeth
Title	-
Publisher	-
Publication Date	1991
Language	-
Citation	65:231-232 (1991)
Yak 94	-
Notes	-

Field	Value
ID	6734
Imported	2026-03-06 18:06:36.307770
Expedition ID	PUMO90308
Reference ID	02
Year	1990
Type	3
Journal	IWA
Author	-
Title	-
Publisher	-
Publication Date	1991
Language	Japanese w/English summary
Citation	:215 (1991)
Yak 94	-
Notes	-

Field	Value
ID	6849
Imported	2026-03-06 18:06:36.307770
Expedition ID	PUMO90308
Reference ID	03
Year	1990
Type	3
Journal	IWA
Author	-
Title	-
Publisher	-
Publication Date	1991
Language	Japanese
Citation	:52 (1991)
Yak 94	-
Notes	-

Field	Value
ID	11608
Imported	2026-03-06 18:06:36.307770
Expedition ID	PUMO90308
Reference ID	04
Year	1990
Type	5
Journal	-
Author	-
Title	http://publications.americanalpineclub.org/articles/12199123100/Asia-Nepal-Pumori-Ascents-and-Attempts-in-the-Autumn
Publisher	-
Publication Date	-
Language	-
Citation	-
Yak 94	-
Notes	-

4 recorded references.

Expedition ID	Journal	Author	Title	Publisher	Citation	Yak 94
PUMO90308	AAJ	Hawley, Elizabeth	-	-	65:231-232 (1991)	-
PUMO90308	IWA	-	-	-	:215 (1991)	-
PUMO90308	IWA	-	-	-	:52 (1991)	-
PUMO90308	-	-	http://publications.americanalpineclub.org/articles/12199123100/Asia-Nepal-Pumori-Ascents-and-Attempts-in-the-Autumn	-	-	-