Annapurna IV | 2015 NW Ridge

A Japan expedition to Annapurna IV in 2015 via NW Ridge, led by Tadaomi Miwatari. Summit reached on 27th September 2015. 3 members recorded.

Expedition Details

Field	Value
ID	8908
Imported	2026-03-06 18:04:49.359634
Expedition ID	ANN415301
Peak ID	ANN4
Year	2015
Season	3
Host Country	1
Route 1	NW Ridge
Route 2	-
Route 3	-
Route 4	-
Nationality	Japan
Leaders	Tadaomi Miwatari
Sponsor	Japanese Senior Climbing Party for Annapurna IV
Success 1	True
Success 2	False
Success 3	False
Success 4	False
Ascent 1	36th
Ascent 2	-
Ascent 3	-
Ascent 4	-
Claimed	False
Disputed	False
Countries	-
Approach	Honde->Sabje Khola
Basecamp Date	2015-09-11
Summit Date	2015-09-27
Summit Time	1130
Summit Days	16
Total Days	19
Termination Date	2015-09-30
Termination Reason	1
Termination Notes	-
High Point (m)	7525
Traverse	False
Ski	False
Paraglide	False
Camps	3
Fixed Rope (m)	2500
Total Members	1
Summit Members	1
Member Deaths	0
Total Hired	2
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	BC(11/09,3700m),ABC(13/09,4800m),C1(24/09,5280m),C2(25/09,5850m),C3(26/09,6700m),Smt(27/09)
Route Notes	BC 11/09 3700m ABC 13/09 4800m C1 24/09 52800m C2 25/09 5850m C3 26/09 6700m Smt 27/09 by Miwatari, Dhan Kumar Tamang, Tul Bahadur at 11:30 am. Team summited from C3. Weather was good but very cold. They left C3 at about 1 am. After the summit they descended to C3, where they spent the night. On 28 Sept, they descended all the way to ABC. On 29 Sept to BC. Oxygen: Takend and used from C1 to summit to C2 by Miwatari.
Accidents	-
Achievement	-
Agency	Hoshi Treks
Commercial Route	False
Standard Route	False
Primary Route	False
Primary Member	False
Primary Reference	False
Primary ID	-
Checksum	2462368
Year	2015
Summit Success	True
O2 Summary	Used
Route (lowercase)	nw ridge

Members

Field	Value
ID	64670
Imported	2026-03-06 18:06:05.675609
Expedition ID	ANN415301
Member ID	01
Peak ID	ANN4
Year	2015
Season	3
First Name	Tadaomi
Last Name	Miwatari
Sex	M
Age	0
Birth Date	-
Year of Birth	1939
Calculated Age	76
Citizenship	Japan
Status	Leader
Residence	Tokyo, Japan
Occupation	Public servant (now retired)
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)	7525
Summit Date 1	2015-09-27
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1130
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	36
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	From C1 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	2427440
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tadaomi miwatari
Year of Birth	1939
Year	2015
Age at Expedition	76
Role	Leader

Field	Value
ID	64671
Imported	2026-03-06 18:06:05.675609
Expedition ID	ANN415301
Member ID	02
Peak ID	ANN4
Year	2015
Season	3
First Name	Dhan Kumar
Last Name	Tamang
Sex	M
Age	0
Birth Date	-
Year of Birth	1985
Calculated Age	29
Citizenship	Nepal
Status	H-A Worker
Residence	Deusa-6, Solukhumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
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)	7525
Summit Date 1	2015-09-27
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1130
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	36
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	2444313
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	dhan kumar tamang
Year of Birth	1985
Year	2015
Age at Expedition	30
Role	Hired

Field	Value
ID	64672
Imported	2026-03-06 18:06:05.675609
Expedition ID	ANN415301
Member ID	03
Peak ID	ANN4
Year	2015
Season	3
First Name	Tul Bahadur
Last Name	Tamang
Sex	M
Age	0
Birth Date	-
Year of Birth	1966
Calculated Age	49
Citizenship	Nepal
Status	H-A Worker
Residence	Deusa-6, Solukhumbu
Occupation	-
Leader	False
Deputy	False
Basecamp Only	False
Not to BC	False
Support	False
Disabled	False
Hired	True
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)	7525
Summit Date 1	2015-09-27
Summit Date 2	-
Summit Date 3	-
Summit Time 1	1130
Summit Time 2	-
Summit Time 3	-
Route 1	1
Route 2	0
Route 3	0
Ascent 1	36
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	2437296
Summit Note 1	-
Summit Note 2	-
Summit Note 3	-
Death Route	-
Name (lowercase)	tul bahadur tamang
Year of Birth	1966
Year	2015
Age at Expedition	49
Role	Hired

3 recorded members.

Name	Sex	Year of Birth	Citizenship	Status	Residence	Occupation
Tadaomi Miwatari	M	1939	Japan	Leader	Tokyo, Japan	Public servant (now retired)	Details Other expeditions
Dhan Kumar Tamang	M	1985	Nepal	H-A Worker	Deusa-6, Solukhumbu	-	Details Other expeditions
Tul Bahadur Tamang	M	1966	Nepal	H-A Worker	Deusa-6, Solukhumbu	-	Details Other expeditions

References

0 recorded references.