
Japan Mountain Safety & Training Initiative
This library provides Mountain Related Incidents from 2020–2026 collected from Nagaon Police Incident reports. The purpose to collect valuable insights from the collected data for the prevention and highlighted training areas.
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23 Aug 2025
Summer
Subject Trip Mt. Akadake
Yatsugatake
Yatsugatake Range
Age
52
Male
GROUP
3 people
ACTIVITY
Mountaineering
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 23rd, 2025, a 52-year-old male subject in a party of 3 tripped or lost balance and fell at Mt. Akadake, resulting in minor injuries. The fall occurred inside a mountain hut.
3人パーティで赤岳付近の山小屋で滞在中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
23 Aug 2025
Summer
Mountaineer injured in fall at Mt. Yari
Kamikochi
Northern Alps
Age
49
Female
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 23rd, 2025, a 49-year-old female mountaineer in a party of 2 suffered a fall from height at Mt. Yari while climbing, resulting in minor injuries. The report identifies this as a fall from ridge or exposed route.
2人パーティで槍ヶ岳に向けて北鎌尾根を登山中、バランスを崩して滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
23 Aug 2025
Summer
Hiker Trip Mt. Karamatsu
Hakuba
Northern Alps
Age
55
Female
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 23rd, 2025, a 55-year-old female hiker in a party of 2 tripped or lost balance and fell at Mt. Karamatsu, resulting in minor injuries.
2人パーティで唐松岳に入山し、山頂付近で転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
23 Aug 2025
Summer
Hiker Fatigue Mt. Karamatsu
Hakuba
Northern Alps
Age
70
Male
GROUP
8 people
ACTIVITY
Hiking
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 23rd, 2025, a 70-year-old male hiker in a party of 8 became fatigued and was unable to continue at Mt. Karamatsu while ascending, requiring rescue.
8人パーティで唐松岳に向けて八方尾根を登山中、疲労により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
22 Aug 2025
Summer
Subject Medical Event Mt. Iodake
Yatsugatake
Yatsugatake Range
Age
66
Male
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Medical Event
STATUS
Medical Emergency
OUTCOME
Rescued
On August 22nd, 2025, a 66-year-old male subject in a party of 2 suffered a medical event at Mt. Iodake, resulting in a medical emergency. The fall occurred inside a mountain hut.
2人パーティで硫黄岳付近の山小屋に滞在中、体調不良により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
22 Aug 2025
Summer
Hiker Trip Mt. Maehotaka
Kamikochi
Northern Alps
Age
51
Male
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 22nd, 2025, a 51-year-old male hiker in a party of 2 tripped or lost balance and fell at Mt. Maehotaka while descending, resulting in minor injuries.
2人パーティで重太郎新道を上高地に向けて下山中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
22 Aug 2025
Summer
Mountaineer injured in fall at Mt. Senjo
Ina / Southern Alps
Southern Alps
Age
43
Male
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 22nd, 2025, a 43-year-old male mountaineer in a party of 2 suffered a fall from height at Mt. Senjo while descending, resulting in minor injuries.
2人パーティで仙丈ケ岳から北沢峠に向けて下山中、滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
22 Aug 2025
Summer
Subject Medical Event Mt. Iodake
Yatsugatake
Yatsugatake Range
Age
8
Male
GROUP
3 people
ACTIVITY
Mountaineering
INCIDENT
Medical Event
STATUS
Medical Emergency
OUTCOME
Rescued
On August 22nd, 2025, a 8-year-old male subject in a party of 3 suffered a medical event at Mt. Iodake, resulting in a medical emergency. The fall occurred inside a mountain hut.
3人パーティで硫黄岳付近の山小屋に宿泊中、発病により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
22 Aug 2025
Summer
Subject Fatigue Mt. Yari
Kamikochi
Northern Alps
Age
54
Male
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 22nd, 2025, a 54-year-old male subject in a party of 2 became fatigued and was unable to continue at Mt. Yari, requiring rescue. The fall occurred inside a mountain hut.
2人パーティで槍ヶ岳付近の山小屋に滞在中、疲労により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
21 Aug 2025
Summer
Mountaineer injured in fall at Mt. Okuhotaka
Kamikochi
Northern Alps
Age
80
Male
GROUP
Solo
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 21st, 2025, a 80-year-old male solo mountaineer suffered a fall from height at Mt. Okuhotaka while descending, resulting in minor injuries.
単独で奥穂高岳からザイテングラートを下山中、滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
21 Aug 2025
Summer
Hiker Trip Mt. Shirouma
Hakuba
Northern Alps
Age
61
Female
GROUP
3 people
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 21st, 2025, a 61-year-old female hiker in a party of 3 tripped or lost balance and fell at Mt. Shirouma while descending, resulting in minor injuries.
3人パーティで白馬岳から栂池に向けて下山中、三国境付近で転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
20 Aug 2025
Summer
Hiker Lost Karasawa
Kamikochi
Northern Alps
Age
78
Male
GROUP
Solo
ACTIVITY
Hiking
INCIDENT
Lost
STATUS
Unable to Continue
OUTCOME
Rescued
On August 20th, 2025, a 78-year-old male solo hiker lost the route after daylight faded and became unable to continue at Karasawa while descending, requiring rescue. The navigation problem involved lost after daylight faded.
単独で奥穂高岳から涸沢に向けて下山中、日没により道に迷い、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
20 Aug 2025
Summer
Hiker Lost Mt. Hoken
Komagane
Central Alps
Age
57
Male
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Lost
STATUS
Unable to Continue
OUTCOME
Rescued
On August 20th, 2025, a 57-year-old male hiker in a party of 2 lost the route and became unable to continue at Mt. Hoken while ascending, requiring rescue.
2人パーティでしらび平から千畳敷に向けて、中御所谷を登山中、道に迷い、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
20 Aug 2025
Summer
Hiker Lost Dakesawa
Kamikochi
Northern Alps
Age
74
Male
GROUP
Solo
ACTIVITY
Hiking
INCIDENT
Lost
STATUS
Unable to Continue
OUTCOME
Rescued
On August 20th, 2025, a 74-year-old male solo hiker lost the route and became unable to continue at Dakesawa while descending, requiring rescue.
単独で岳沢から上高地に向けて下山中、道に迷い、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
20 Aug 2025
Summer
Mountaineer injured in fall at Mt. Nunobiki
Komoro
Eastern Nagano
Age
56
Male
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 20th, 2025, a 56-year-old male mountaineer in a party of 2 suffered a fall from height at Mt. Nunobiki, resulting in minor injuries.
2人パーティで鹿島槍ヶ岳から冷乗越方面に向けて縦走中、滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
18 Aug 2025
Summer
Hiker Fatigue Mt. Tengu
Yatsugatake
Yatsugatake Range
Age
84
Male
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 18th, 2025, a 84-year-old male hiker in a party of 2 became fatigued and was unable to continue at Mt. Tengu while ascending, requiring rescue.
2人パーティで天狗岳に向けて登山中、疲労により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
18 Aug 2025
Summer
Mountaineer injured in fall at Mt. Kaikoma
Ina / Yamanashi border
Southern Alps
Age
59
Female
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 18th, 2025, a 59-year-old female mountaineer in a party of 2 suffered a fall from height at Mt. Kaikoma while descending, resulting in minor injuries.
2人パーティで甲斐駒ヶ岳から北沢峠に向けて下山中、滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
18 Aug 2025
Summer
Hiker Fatigue Mt. Ontake
Kiso
Kiso Valley
Age
74
Male
GROUP
Solo
ACTIVITY
Hiking
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 18th, 2025, a 74-year-old male solo hiker became fatigued and was unable to continue at Mt. Ontake while descending, requiring rescue.
単独で御嶽山から下山中、疲労により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
18 Aug 2025
Summer
Hiker Medical Event Mt. Eboshi
Takase Valley
Northern Alps
Age
46
Male
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Medical Event
STATUS
Medical Emergency
OUTCOME
Rescued
On August 18th, 2025, a 46-year-old male hiker in a party of 2 suffered a medical event at Mt. Eboshi while ascending, resulting in a medical emergency.
2人パーティでブナ立尾根を登山中、発病により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n409_20250827.pdf
17 Aug 2025
Summer
Hiker Trip Mt. Jonen
Azumino
Northern Alps
Age
57
Female
GROUP
4 people
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 17th, 2025, a 57-year-old female hiker in a party of 4 tripped or lost balance and fell at Mt. Jonen while ascending, resulting in minor injuries.
4人パーティで常念乗越に向けて登山中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
17 Aug 2025
Summer
Mountaineer injured in fall at Mt. Karamatsu
Hakuba
Northern Alps
Age
57
Female
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 17th, 2025, a 57-year-old female mountaineer in a party of 2 suffered a fall from height at Mt. Karamatsu while descending, resulting in minor injuries. The report identifies this as a fall from ridge or exposed route.
2人パーティで唐松岳から八方尾根を下山中、滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
16 Aug 2025
Summer
Mountaineer dies after fall at Mt. Kashimayari
Omachi / Hakuba
Northern Alps
Age
51
Female
GROUP
3 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Fatal Injuries
OUTCOME
Fatality
On August 16th, 2025, a 51-year-old female mountaineer in a party of 3 suffered a fall from height at Mt. Kashimayari while climbing, resulting in fatal injuries.
3人パーティで鹿 島槍ヶ岳から五竜岳に向けて登山中、八峰キレット付近で滑落
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
16 Aug 2025
Summer
Climber Lost Kitakama Ridge, Mt. Yari
Kamikochi
Northern Alps
Age
46
Male
GROUP
Solo
ACTIVITY
Mountaineering
INCIDENT
Lost
STATUS
Unable to Continue
OUTCOME
Rescued
On August 16th, 2025, a 46-year-old male solo mountaineer lost the route and became unable to continue at Kitakama Ridge, Mt. Yari while climbing, requiring rescue.
単独で槍ヶ岳北鎌尾根を登山中、急峻な沢に迷い込み、行動不能
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
16 Aug 2025
Summer
Mountaineer seriously injured in fall at Mt. Karamatsu
Hakuba
Northern Alps
Age
65
Male
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Major Injury
OUTCOME
Rescued
On August 16th, 2025, a 65-year-old male mountaineer in a party of 2 suffered a fall from height at Mt. Karamatsu while climbing, resulting in a serious head injury.
2人パーティで唐松岳に向けて天狗の頭付近を登山中、滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
16 Aug 2025
Summer
Hiker Fatigue Mt. Korenge
Hakuba
Northern Alps
Age
31
Female
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 16th, 2025, a 31-year-old female hiker in a party of 2 became fatigued and was unable to continue at Mt. Korenge while ascending, requiring rescue.
2人パーティで白馬岳へ向けて登山中、小蓮華山付近で疲労等により行動不能
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
16 Aug 2025
Summer
Hiker Lost Mt. Karamatsu
Hakuba
Northern Alps
Age
28
Male
GROUP
Solo
ACTIVITY
Hiking
INCIDENT
Lost
STATUS
Unable to Continue
OUTCOME
Rescued
On August 16th, 2025, a 28-year-old male solo hiker lost the route and became unable to continue at Mt. Karamatsu while ascending, requiring rescue.
単独で唐松岳から五竜岳に向けて登山中、道に迷い行動不能に
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
15 Aug 2025
Summer
Hiker Medical Event Mt. Shirouma
Hakuba
Northern Alps
Age
36
Female
GROUP
7 people
ACTIVITY
Hiking
INCIDENT
Medical Event
STATUS
Medical Emergency
OUTCOME
Rescued
On August 15th, 2025, a 36-year-old female hiker in a party of 7 suffered a medical event at Mt. Shirouma while descending, resulting in a medical emergency.
7人パーティで白馬岳から下山中、体調不良により、行動不能
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
15 Aug 2025
Summer
Climber Trip Mt. Akazawa
Omachi
Northern Alps
Age
81
Female
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 15th, 2025, a 81-year-old female mountaineer in a party of 2 tripped or lost balance and fell at Mt. Akazawa, resulting in minor injuries.
2人パーティで赤沢岳山頂付近を縦走中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
15 Aug 2025
Summer
Climber Trip Mt. Narusawa
Omachi
Northern Alps
Age
63
Male
GROUP
Solo
ACTIVITY
Mountaineering
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 15th, 2025, a 63-year-old male solo mountaineer tripped or lost balance and fell at Mt. Narusawa, resulting in minor injuries.
単独で針ノ木岳に向けて縦走中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
14 Aug 2025
Summer
Climber Fatigue Mt. Chogatake
Kamikochi
Northern Alps
Age
48
Male
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 14th, 2025, a 48-year-old male mountaineer in a party of 2 became fatigued and was unable to continue at Mt. Chogatake, requiring rescue.
2人パーティで常念岳から蝶ヶ岳に向けて縦走中、疲労により、行動不能
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
14 Aug 2025
Summer
Mountaineer injured in fall at Mt. Karamatsu
Hakuba
Northern Alps
Age
71
Female
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 14th, 2025, a 71-year-old female mountaineer in a party of 2 suffered a fall from height at Mt. Karamatsu while climbing, resulting in minor injuries. The report identifies this as a fall from ridge or exposed route. The patient status included leg injury.
2人パーティで八方尾根を登山中、木道で足を滑らせて滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
14 Aug 2025
Summer
Hiker Medical Event Mt. Shirouma
Hakuba
Northern Alps
Age
62
Male
GROUP
3 people
ACTIVITY
Hiking
INCIDENT
Medical Event
STATUS
Medical Emergency
OUTCOME
Rescued
On August 14th, 2025, a 62-year-old male hiker in a party of 3 suffered a medical event at Mt. Shirouma, resulting in a medical emergency. The fall occurred inside a mountain hut.
3人パーティで白馬岳に入山し、付近の山小屋で体調不良により、行動不能
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
13 Aug 2025
Summer
Hiker Fatigue Mt. Naka
Central Alps
Central Alps
Age
69
Female
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 13th, 2025, a 69-year-old female hiker in a party of 2 became fatigued and was unable to continue at Mt. Naka while descending, requiring rescue.
2人パーティで木曽駒ヶ岳から下山中、疲労により、行動不能
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
13 Aug 2025
Summer
Mountaineer injured in fall at Mt. Kaikoma
Ina / Yamanashi border
Southern Alps
Age
71
Male
GROUP
4 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 13th, 2025, a 71-year-old male mountaineer in a party of 4 suffered a fall from height at Mt. Kaikoma while climbing, resulting in minor injuries.
4人パーティで甲斐駒ヶ岳を登山中、滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
13 Aug 2025
Summer
Climber Fatigue Mt. Shirouma
Hakuba
Northern Alps
Age
58
Male
GROUP
Solo
ACTIVITY
Mountaineering
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 13th, 2025, a 58-year-old male solo mountaineer became fatigued and was unable to continue at Mt. Shirouma while climbing, requiring rescue.
単独で白馬大雪渓を登山中、疲労により、行動不能
Source: Nagano Police Sangaku Info
Source File:
n408_20250819.pdf
11 Aug 2025
Summer
Climber Trip Mt. Shirouma
Hakuba
Northern Alps
Age
59
Male
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 11th, 2025, a 59-year-old male mountaineer in a party of 2 tripped or lost balance and fell at Mt. Shirouma while descending, resulting in minor injuries.
2人パーティで白馬岳から猿倉登山口に向けて大雪渓を下山中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
10 Aug 2025
Summer
Climber Fatigue Mt. Goryu
Hakuba
Northern Alps
Age
65
Female
GROUP
4 people
ACTIVITY
Mountaineering
INCIDENT
Fatigue
STATUS
Hypothermia
OUTCOME
Rescued
On August 10th, 2025, a 65-year-old female mountaineer in a party of 4 became fatigued and was unable to continue at Mt. Goryu, resulting in hypothermia. The patient status included cold injury / hypothermia. Poor weather affected movement or rescue.
4人パーティで鹿島槍ヶ岳から五竜岳に向けて縦走中、悪天候により、低体温症に陥り、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
9 Aug 2025
Summer
Hiker Equipment Failure Mt. Myojin
Kamikochi
Northern Alps
Age
47; 59; 51
Male; Female; Female
GROUP
3 people
ACTIVITY
Hiking
INCIDENT
Equipment Failure
STATUS
Unable to Continue
OUTCOME
Rescued
On August 9th, 2025, a 47-year-old male hiker in a party of 3 experienced an equipment or preparation issue and was unable to continue at Mt. Myojin while descending, requiring rescue. Technical skill limitation was noted. The patient status included leg injury. The public incident-level record represents 3 recorded subjects (Male; Female; Female; ages 47; 59; 51).
3人パーティで明神岳から奥明神沢を下山中、技量不足により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
9 Aug 2025
Summer
Hiker Trip Mt. Karamatsu
Hakuba
Northern Alps
Age
53
Male
GROUP
Solo
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 9th, 2025, a 53-year-old male solo hiker tripped or lost balance and fell at Mt. Karamatsu while descending, resulting in minor injuries.
単独で唐松岳から八方尾根を下山中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
9 Aug 2025
Summer
Hiker injured in descent at Karasawa
Kamikochi
Northern Alps
Age
64
Male
GROUP
Solo
ACTIVITY
Hiking
INCIDENT
Descending accident
STATUS
Minor Injury
OUTCOME
Rescued
On August 9th, 2025, a 64-year-old male solo hiker experienced an incident at Karasawa while descending, resulting in a minor leg injury.
単独で涸沢から横尾に向けて下山中、膝の痛みにより、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
9 Aug 2025
Summer
Climber injured in fall at Ogawayama
Kawakami
Chichibu Mountains
Age
61
Male
GROUP
4 people
ACTIVITY
Rock Climbing
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 9th, 2025, a 61-year-old male rock climber in a party of 4 suffered a fall from height at Ogawayama, resulting in minor injuries.
4人パーティで小川山でクライミング中、転落、負傷
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
9 Aug 2025
Summer
Hiker Trip Mt. Karamatsu
Hakuba
Northern Alps
Age
49
Male
GROUP
3 people
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 9th, 2025, a 49-year-old male hiker in a party of 3 tripped or lost balance and fell at Mt. Karamatsu while descending, resulting in minor injuries.
3人パーティで唐松岳から八方尾根を下山中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
8 Aug 2025
Summer
Hiker Medical Event Mt. Akadake
Yatsugatake
Yatsugatake Range
Age
67
Female
GROUP
4 people
ACTIVITY
Hiking
INCIDENT
Medical Event
STATUS
Medical Emergency
OUTCOME
Rescued
On August 8th, 2025, a 67-year-old female hiker in a party of 4 suffered a medical event at Mt. Akadake, resulting in a medical emergency. The fall occurred inside a mountain hut.
4人パーティで赤岳に入山し、山小屋で宿泊中、疲労と体調不良により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
8 Aug 2025
Summer
Hiker Fatigue Mt. Tsubakuro
Azumino
Northern Alps
Age
66
Male
GROUP
19 people
ACTIVITY
Hiking
INCIDENT
Fatigue
STATUS
Unable to Continue
OUTCOME
Rescued
On August 8th, 2025, a 66-year-old male hiker in a party of 19 became fatigued and was unable to continue at Mt. Tsubakuro while descending, requiring rescue.
19人パーティで燕岳から合戦尾根を下山中、疲労により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
7 Aug 2025
Summer
Hiker Fatigue Mt. Shirouma
Hakuba
Northern Alps
Age
78; 75; 65
Male; Male; Female
GROUP
8 people
ACTIVITY
Hiking
INCIDENT
Fatigue
STATUS
Fatal Injuries
OUTCOME
Fatality
On August 7th, 2025, a 78-year-old male hiker in a party of 8 became fatigued and was unable to continue at Mt. Shirouma while ascending, resulting in fatal injuries. The patient status included cold injury / hypothermia. Poor weather affected movement or rescue.
8人パーティで白馬岳に向けて登山中、悪天候により、低体温症に陥り、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
5 Aug 2025
Summer
Hiker Medical Event Mt. Ontake
Kiso
Kiso Valley
Age
53
Male
GROUP
4 people
ACTIVITY
Hiking
INCIDENT
Medical Event
STATUS
Medical Emergency
OUTCOME
Rescued
On August 5th, 2025, a 53-year-old male hiker in a party of 4 suffered a medical event at Mt. Ontake while descending, resulting in a medical emergency.
4人パーティで御嶽山から下山中、9 合目付近において、疲労と体調不良により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
4 Aug 2025
Summer
Mountaineer injured in fall at Mt. Yari
Kamikochi
Northern Alps
Age
54
Female
GROUP
2 people
ACTIVITY
Mountaineering
INCIDENT
Fall from Height
STATUS
Minor Injury
OUTCOME
Rescued
On August 4th, 2025, a 54-year-old female mountaineer in a party of 2 suffered a fall from height at Mt. Yari while climbing, resulting in minor injuries. The report identifies this as a fall from ridge or exposed route.
2人パーティで北鎌尾根を登山中、山頂付近で滑落、負傷
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
4 Aug 2025
Summer
Hiker Trip Mt. Norikura
Matsumoto
Northern Alps
Age
76
Male
GROUP
2 people
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 4th, 2025, a 76-year-old male hiker in a party of 2 tripped or lost balance and fell at Mt. Norikura while descending, resulting in minor injuries.
2人パーティで白馬乗鞍岳から下山中、天狗原付近で転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n407_20250813.pdf
3 Aug 2025
Summer
Climber Equipment Failure Mt. Yari
Kamikochi
Northern Alps
Age
61
Male
GROUP
3 people
ACTIVITY
Mountaineering
INCIDENT
Equipment Failure
STATUS
Unable to Continue
OUTCOME
Rescued
On August 3rd, 2025, a 61-year-old male mountaineer in a party of 3 experienced an equipment or preparation issue and was unable to continue at Mt. Yari while climbing, requiring rescue. Technical skill limitation was noted. The patient status included leg injury.
3人パーティで北鎌尾根を登山中、上記同行者が遭難したため、技量不足により、行動不能に
Source: Nagano Police Sangaku Info
Source File:
n406_20250806.pdf
3 Aug 2025
Summer
Hiker Trip Karasawa
Kamikochi
Northern Alps
Age
57
Male
GROUP
Solo
ACTIVITY
Hiking
INCIDENT
Trip
STATUS
Minor Injury
OUTCOME
Rescued
On August 3rd, 2025, a 57-year-old male solo hiker tripped or lost balance and fell at Karasawa while descending, resulting in minor injuries.
単独で涸沢から横尾に向けて下山中、転倒、負傷
Source: Nagano Police Sangaku Info
Source File:
n406_20250806.pdf