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This 265 km route runs from Kijimadaira to Oyama, passing through Nagano, Saitama, Tochigi, and Gunma. In the past 30 days, 101 bear sightings were reported within 5 km of the route. The past 7 days account for 16 of them. The latest sighting was reported 20 hours ago near Annaka 中秋間, Gunma.
This is an active bear corridor. Rerouting or rescheduling your hike is strongly advised.
1 places within 1 km of your route, passing through Nagano, Saitama, Tochigi, Gunma.
Size: Adult
Kijimadaira, 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
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: juvenile
Nagano Uematsu, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: juvenile
Kijimadaira Ogo, Nagano
Size: adult (fully grown)
Kijimadaira, Nagano
Size: Adult
Yamanouchi Hirao, Nagano
Size: Adult
Ogawa Oneyama, Nagano
Size: Adult
Ōmachi 中ノ関, Nagano
Size: adult
Ōmachi 中ノ関, Nagano
Around 6:00 on June 14, a bear was sighted in Nanase, Nakano City.
Nakano Nanase, Nagano
Size: adult
Ōmachi 元ノ関, Nagano
Size: Adult
Nakano Nanase, Nagano
Size: juvenile
Ōmachi, Nagano
Size: Unknown
Ogawa Oneyama, Nagano
Size: juvenile
Ōmachi, Nagano
Size: cub (young bear)
Ōmachi 元ノ関, Nagano
Size: adult
Ogawa Inaoka, Nagano
Size: Adult
Ōmachi, Nagano
Size: adult
Yamanouchi, Nagano
Size: Adult
Hakuba, Nagano
Size: Adult
Ogawa Takafu, Nagano
Size: adult (fully grown)
Nagano Tanaka, Nagano
Size: Adult
Ōmachi, Nagano
Size: Adult
Iiyama Oike, Nagano
Size: Unknown
Nagano Mayumida, 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: Unknown
Nakano Kasahara, Nagano
Size: juvenile
Nagano 富田, Nagano
Size: Adult
Ōmachi 元ノ関, Nagano
Size: Adult
Nagano Aokijimamachi-Aokijima, Nagano
Size: adult (full-grown)
Ogawa Takafu, Nagano
Size: juvenile
Ōmachi, Nagano
Size: adult and cub
Ōmachi, Nagano
Around 9:25 on May 30, a bear was sighted in Miwa, Omachi City.
Ōmachi Miasa, Nagano
A bear was sighted in Shimokijima, Iiyama City.
Iiyama Shimokijima, Nagano
Size: adult
Kijimadaira, Nagano
Size: unknown
Kijimadaira Ogo, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: adult and cub
Ogawa Setogawa, Nagano
Size: Cub
Ōmachi 中ノ関, Nagano
At around 12:20 on 2026-05-29, one bear was sighted in Miasa Futari, Omachi City.
Ōmachi 元ノ関, Nagano
Size: unknown
Ōmachi, Nagano
Size: adult (fully grown)
Nagano Shinkomachi-Hinota, Nagano
Annaka 中秋間, Gunma
Tsumagoi, Gunma
Annaka 松井田町土塩, Gunma
Size: juvenile
Ueda, Nagano
Annaka 松井田町五料, Gunma
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
Ueda, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: adult (fully grown)
Ōmachi, Nagano
Size: cub (juvenile)
Karuizawa 大字長倉, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: cub (juvenile)
Ueda, Nagano
Size: Adult
Karuizawa, Nagano
Size: juvenile
Ueda Sanadamachi-Osa, Nagano
Size: Unknown
Karuizawa 大字長倉, Nagano
Size: juvenile
Ōmachi, 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: juvenile
Ōmachi, Nagano
Size: cub (young bear)
Ōmachi 元ノ関, Nagano
Size: juvenile
Nagano Matsushiromachi-Toyosaka, Nagano
Annaka 松井田町土塩, Gunma
Size: Unknown
Chikuma Mori, Nagano
Size: Adult
Ōmachi, Nagano
Size: Juvenile
Ueda Tonoshiro, Nagano
Annaka 松井田町土塩, Gunma
Size: Adult
Karuizawa 大字長倉, Nagano
Size: juvenile
Nagano Matsushiromachi-Toyosaka, Nagano
Size: cub/juvenile
Ueda, 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
An animal believed to be a bear was sighted in Yokokawa, Matsuida-machi, Annaka City.
Annaka 松井田町横川, Gunma
Karuizawa, Nagano
Ueda, Nagano
A bear was sighted in Sanada-machi Soba, Ueda City.
Ueda, 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: Unknown
Ueda, 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
Ōmachi 元ノ関, Nagano
Size: juvenile
Ōmachi, Nagano
Tsumagoi, Gunma
Around 7:00 PM on May 31, a bear-like animal was spotted in Shimonote, Honjo City.
Honjo 小和瀬, Saitama
Size: adult and cub
Ōmachi, Nagano
One bear was sighted in Karuizawa, Karuizawa Town; the area has nearby homes and the bear was about 1 meter long.
Karuizawa 中軽井沢, Nagano
Around 9:25 on May 30, a bear was sighted in Miwa, Omachi City.
Ōmachi Miasa, Nagano
Size: juvenile
Ōmachi 元ノ関, Nagano
Size: Adult (fully grown)
Sakaki, Nagano
Size: Cub
Ōmachi 中ノ関, Nagano
At around 12:20 on 2026-05-29, one bear was sighted in Miasa Futari, Omachi City.
Ōmachi 元ノ関, Nagano
Size: adult
Karuizawa 大字長倉, Nagano
Size: Adult (fully grown)
Karuizawa 大字長倉, Nagano
Size: adult (fully grown)
Karuizawa 大字長倉, Nagano
Size: adult
Karuizawa 大字長倉, Nagano
Around 4:00 PM on May 28, a bear was sighted in Nagakura, Karuizawa Town.
Karuizawa 中軽井沢, Nagano
Annaka 秋間みのりが丘, Gunma
Ueda Ueno, Nagano
Size: Adult
Karuizawa 大字長倉, Nagano
Size: unknown
Ōmachi, Nagano
Size: adult (fully grown)
Nagano Shinkomachi-Hinota, Nagano
Peak activity at 17:00 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, 101 bear sightings were reported within 5 km of the route. The past 7 days account for 16 of them.
The latest sighting was reported 20 hours ago near Annaka 中秋間, Gunma.
Recent sightings on this route peak around 17:00. Bears are generally most active at dawn and dusk.
This 265 km route runs from Kijimadaira to Oyama, passing through Nagano, Saitama, Tochigi, and Gunma. In the past 30 days, 101 bear sightings were reported within 5 km of the route. The past 7 days account for 16 of them. The latest sighting was reported 20 hours ago near Annaka 中秋間, Gunma. This is an active bear corridor. Rerouting or rescheduling your hike is strongly advised.
