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This 253 km route runs from Jōkan-ji Temple to Omachi, passing through Tokyo, Nagano, Gunma, and Saitama. In the past 30 days, 114 bear sightings were reported within 5 km of the route. The past 7 days account for 21 of them. The latest sighting was reported 1 day ago near Ōmachi, Nagano.
This is an active bear corridor. Rerouting or rescheduling your hike is strongly advised.
10 places within 1 km of your route, passing through Tokyo, Nagano, Gunma, Saitama.
Size: Adult
Ōmachi, Nagano
Size: adult (fully grown)
Ogawa Takafu, Nagano
Around 14:55 on 2026-06-29, a bear was sighted in Miasa Futakuri, Omachi City.
Ōmachi 元ノ関, Nagano
A bear was sighted in Kamimasuda, Matsuida-machi, Annaka City.
Annaka 松井田町上増田, Gunma
Size: juvenile
Ōmachi 中ノ関, Nagano
Size: Adult
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
Size: Adult (fully grown)
Ogawa Setogawa, Nagano
Around 18:20 on 2026-06-26, a bear was sighted in Miasa, Omachi City, Nagano Prefecture.
Ōmachi Miasa, Nagano
Size: adult
Ōmachi, Nagano
Size: Unknown
Komoro Kamasu, Nagano
Size: adult (fully grown)
Nagano Shinshushinmachi-Yamahokari, Nagano
Size: Unknown
Ogawa Oneyama, Nagano
A bear was sighted in Misasa Aogu, Omachi City.
Ōmachi, Nagano
Size: cub
Ogawa Setogawa, Nagano
Size: juvenile
Ogawa Takafu, Nagano
Size: Adult with cub
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Annaka 松井田町上増田, Gunma
A bear was sighted in Kamimasuda, Matsuidamachi, Annaka City.
Annaka 松井田町上増田, Gunma
Size: Adult
Ogawa Setogawa, Nagano
Size: Adult
Ogawa Oneyama, Nagano
Size: Adult
Ōmachi, Nagano
Annaka 松井田町土塩, Gunma
Annaka 松井田町五料, Gunma
Size: adult (fully grown)
Ōmachi, Nagano
A bear was sighted in Miasa, Omachi City, around 07:30 on 2026-06-19.
Ōmachi Miasa, Nagano
Size: adult with cub(s)
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
A bear was sighted in Miasa Futae, Omachi City, Nagano, around 16:55 on 2026-06-18.
Ōmachi 元ノ関, Nagano
Size: adult and cub
Karuizawa 大字長倉, Nagano
Size: Adult
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: Adult
Karuizawa, Nagano
Size: Unknown
Miyota 大字塩野, Nagano
Size: cub (juvenile)
Karuizawa 大字長倉, Nagano
Size: adult
Karuizawa 大字追分, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: Adult
Karuizawa, Nagano
Size: Adult
Karuizawa 大字追分, Nagano
Size: Unknown
Karuizawa 大字長倉, Nagano
Tomioka 神成, Gunma
Size: Adult
Ogawa Oneyama, Nagano
Size: Adult
Ōmachi 中ノ関, Nagano
Size: adult
Ōmachi 中ノ関, Nagano
Around 17:45 on 2026-06-14, a bear was sighted in Nagakura, Karuizawa Town, Nagano Prefecture.
Karuizawa 中軽井沢, Nagano
Size: adult
Ōmachi 元ノ関, Nagano
Around 21:50 on 2026-06-13, a bear was sighted in Yokokawa, Matsuidamachi, Annaka, Gunma.
Annaka 松井田町横川, Gunma
Size: juvenile
Ōmachi, Nagano
Size: Unknown
Ogawa Oneyama, Nagano
Size: juvenile
Ōmachi, Nagano
Size: adult
Ōmachi, Nagano
Around 8:00 on 2026-06-11, one bear was sighted in Fujiyama, Ueda City, Nagano Prefecture.
Ueda Fujiyama, Nagano
Size: cub (young bear)
Ōmachi 元ノ関, Nagano
Size: adult
Komoro Takibara, Nagano
Size: adult
Ueda Mitakedo, Nagano
Annaka 松井田町土塩, Gunma
Size: Unknown
Chikuma Mori, Nagano
Size: adult
Ogawa Inaoka, Nagano
Size: Adult
Ōmachi, Nagano
Annaka 松井田町土塩, Gunma
Size: Adult
Karuizawa 大字長倉, Nagano
Size: Adult
Hakuba, Nagano
Size: Adult
Ogawa Takafu, Nagano
Size: Adult
Ōmachi, Nagano
Size: adult (fully grown)
Karuizawa 大字長倉, Nagano
Size: Adult
Karuizawa, Nagano
Size: juvenile
Karuizawa 中軽井沢, Nagano
Size: adult
Sakaki Nakanojo, Nagano
Size: Adult
Nagano Shinonoi-Yokota, Nagano
An animal believed to be a bear was sighted in Yokokawa, Matsuida-machi, Annaka City.
Annaka 松井田町横川, Gunma
An adult bear was sighted in the forest behind a house in Kamishiojiri, Ueda City.
Ueda Kamishiojiri, Nagano
A bear was sighted in Nagakura, Karuizawa Town, around 9:30 AM on June 5.
Karuizawa 中軽井沢, Nagano
Size: Adult
Karuizawa, Nagano
Around 5:55 PM on 2026-06-04, a bear was sighted in Miasa Futae, Omachi City.
Ōmachi 元ノ関, Nagano
Size: adult (fully grown)
Ōmachi 元ノ関, Nagano
Size: adult with cub
Karuizawa, Nagano
On 2026-06-02 around noon, a bear was sighted in Karuizawa, Karuizawa Town, Nagano Prefecture.
Karuizawa 大字軽井沢, Nagano
Size: adult (fully grown)
Sakaki Minamijo, Nagano
Size: Adult
Ōmachi 元ノ関, Nagano
Size: Adult
Ōmachi, Nagano
Around 14:55 on 2026-06-29, a bear was sighted in Miasa Futakuri, Omachi City.
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi 中ノ関, Nagano
Size: Adult
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: adult
Ōmachi, Nagano
Size: cub (juvenile)
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
A bear was sighted in Misasa Aogu, Omachi City.
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: Juvenile
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: adult (fully grown)
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
Size: adult with cub(s)
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
A bear was sighted in Miasa Futae, Omachi City, Nagano, around 16:55 on 2026-06-18.
Ōmachi 元ノ関, Nagano
Size: Adult
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
Size: Juvenile
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Size: Adult
Ōmachi 中ノ関, Nagano
Size: adult
Ōmachi 中ノ関, Nagano
Size: juvenile
Ōmachi, Nagano
Size: Unknown
Ōmachi, Nagano
Size: adult
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Size: adult with cub(s)
Ōmachi, Nagano
Size: juvenile
Ōmachi, Nagano
Size: adult
Ōmachi, Nagano
Size: adult with cub
Ōmachi, Nagano
Size: cub (young bear)
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: adult with cubs
Ōmachi, Nagano
Size: adult with cub(s)
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Size: Adult
Ōmachi, Nagano
Size: adult with cubs
Ōmachi, Nagano
Size: adult with cubs
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Around 5:55 PM on 2026-06-04, a bear was sighted in Miasa Futae, Omachi City.
Ōmachi 元ノ関, Nagano
Size: adult (fully grown)
Ōmachi 元ノ関, Nagano
Size: adult with cub(s)
Ōmachi, Nagano
Size: Adult
Ōmachi 元ノ関, Nagano
Peak activity at 13:00 with 3 incidents
Ursus thibetanus japonicus
Safety picks and trail essentials, top-rated on Amazon and Rakuten.
For mountain rescue, call 110 (police). They will coordinate with local rescue teams.
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In the past 30 days, 114 bear sightings were reported within 5 km of the route. The past 7 days account for 21 of them.
The latest sighting was reported 1 day ago near Ōmachi, Nagano.
Recent sightings on this route peak around 13:00. Bears are generally most active at dawn and dusk.
This 253 km route runs from Jōkan-ji Temple to Omachi, passing through Tokyo, Nagano, Gunma, and Saitama. In the past 30 days, 114 bear sightings were reported within 5 km of the route. The past 7 days account for 21 of them. The latest sighting was reported 1 day ago near Ōmachi, Nagano. This is an active bear corridor. Rerouting or rescheduling your hike is strongly advised.
