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This 713 km route runs from Nikko to Lake Sagami, passing through Tochigi, Yamagata, Fukushima, Kanagawa, Chiba, Ibaraki, Niigata, Saitama, and Tokyo. In the past 30 days, 65 bear sightings were reported within 5 km of the route. The past 7 days account for 7 of them. The latest sighting was reported 2 days ago near Yonezawa Sekine, Yamagata.
This is an active bear corridor. Rerouting or rescheduling your hike is strongly advised.
6 places within 1 km of your route, passing through Tochigi, Yamagata, Fukushima, Kanagawa, Chiba, Ibaraki, Niigata, Saitama, Tokyo.
A witness, while walking a bicycle, observed one bear (approximately 1 meter in body length) coming from the forested area at the above sighting location toward the town road.
Aizubange 大字宇内, Fukushima
On 2026-08-03 around 10:37, an elderly woman was attacked by a bear at a house in Sugiya, Aizumisato Town, Fukushima, injured, and taken to hospital.
Aizumisato 杉屋, Fukushima
Aizumisato 杉屋, Fukushima
A bear appeared in Sugiya Kamiyashiki, Aizumisato Town, on August 3 shortly after 10:30 a.m. and attacked a person.
Aizumisato 杉屋, Fukushima
Found one bear cub in the vehicle; the mother was not in the vicinity.
Nikkō, Tochigi
While walking, I observed three bears crossing the prefectural road on the west side of my home from the mountain forest on the west to the river on the east (one about 1.5 m in length and two about 0.5 m each).
Aizumisato 旭無量, Fukushima
Nikkō 高原, Tochigi
Around 8:43 PM on July 24, a bear was sighted in Kuno本, Nagai City, Yamagata.
Nagai 九野本, Yamagata
Environment: Farmland / Size: Adult
Nagai 宮, Yamagata
A bear was sighted moving in Sekimoto Rokushigari, Minamiaizu Town, around 11:40 on July 24.
Minamiaizu Tonyu, Fukushima
One bear (about 1 meter long) was sighted on residential property.
Aizubange 大字金上, Fukushima
Around 07:20 on 2026-07-24, a bear was sighted in Kanagami, Aizubange Town, Fukushima Prefecture.
Aizubange 字下川前丙, Fukushima
A bear about 1 m long was present in a vacant lot in Toyokawamachi Yoneshitsu, Kitakata City.
Kitakata 豊川町米室, Fukushima
Environment: forest / Size: adult
Nagai, Yamagata
A bear was sighted in Kamishiobara, Nasushiobara City.
Nasushiobara 上塩原, Tochigi
In a home in Shiokawa-machi, Kitakata, a chicken coop was damaged in a suspected bear incident, leaving four chickens dead and three missing.
Kitakata 塩川町, Fukushima
A bear believed to be the size of a cub was spotted near the tunnel entrance.
Nikkō, Tochigi
Bear sighted in a field / Environment: Near houses / Size: Adult
Nagai 宮, Yamagata
A bear was sighted in Hirayama, Nagai City, Yamagata Prefecture, around 6:35 a.m. on July 19.
Nagai 平山, Yamagata
Sighted running into nearby scrub woodland / Environment: Around houses / Size: Adult
Nagai 宮, Yamagata
Environment: Road / Size: Adult
Yonezawa Kuchitazawa, Yamagata
While driving a vehicle, the observer sighted one bear (approximately 0.8 m in body length) crossing the road.
Aizumisato 松沢, Fukushima
Environment: riverbed / Size: cub
Kawanishi 大字東大塚, Yamagata
One bear was sighted in Takayama, Kawanishi Town, Yamagata, swimming downstream in the Mogami River.
Kawanishi 大字高山, Yamagata
Encountered a bear about 70 centimeters tall on the prefectural road while driving; it climbed up the cliff and ran away.
Nikkō 黒部, Tochigi
A bear was sighted in Itazawa, Minamiaizu Town, Fukushima, around 9:00 on July 11.
Minamiaizu Itozawa, Fukushima
A bear was sighted in a rice paddy in Shimohori, Aizumisato, and walked away.
Aizumisato 下堀, Fukushima
A bear was seen moving in Matsuzawa Maesawa, Aizumisato Town, Fukushima, around 07:47 on July 10.
Aizumisato 松沢, Fukushima
Environment: Park / Size: Adult
Nanyo 竹原, Yamagata
Environment: Farmland / Size: Unknown
Kawanishi 大字上奥田, Yamagata
One bear was sighted in a farm field in Kamiokuda, Kawanishi Town.
Kawanishi 大字上奥田, Yamagata
Environment: forest / Size: adult
Yonezawa Sekine, Yamagata
One bear was sighted near National Route 4 in Yurigakubo, Asakawa, Matsukawa-machi, Fukushima, emerging from bushes on the east side of the road.
Fukushima Matsukawamachi-Asakawa, Fukushima
One bear (about 1 meter in body length) was sighted on National Route 4.
Fukushima Matsukawamachi-Asakawa, Fukushima
Environment: Road / Size: Unknown
Yonezawa, Yamagata
Around 8:43 PM on July 24, a bear was sighted in Kuno本, Nagai City, Yamagata.
Nagai 九野本, Yamagata
Environment: Farmland / Size: Adult
Nagai 宮, Yamagata
Environment: forest / Size: adult
Nagai, Yamagata
Environment: Farmland / Size: Adult
Yonezawa Misawa, Yamagata
Environment: Forest / Size: Adult
Yonezawa Osawa, Yamagata
Bear sighted in a field / Environment: Near houses / Size: Adult
Nagai 宮, Yamagata
A bear was sighted in Hirayama, Nagai City, Yamagata Prefecture, around 6:35 a.m. on July 19.
Nagai 平山, Yamagata
Sighted running into nearby scrub woodland / Environment: Around houses / Size: Adult
Nagai 宮, Yamagata
Environment: Forest / Size: Adult
Yonezawa Ogoya, Yamagata
Environment: Road / Size: Adult (full-grown)
Yonezawa Banseicho-Katako, Yamagata
A bear was sighted in Iizaka-machi Yunosakudō, Fukushima City.
Fukushima Iizakamachi, Fukushima
A single bear (about 1.5 meters in body length) was sighted along National Route 399.
Fukushima Iizakamachi, Fukushima
Environment: Near houses / Size: Adult
Yonezawa Takei, Yamagata
Environment: Road / Size: Adult
Yonezawa Banseicho-Kariyasu, Yamagata
A single bear (approximately 1 meter in body length) was sighted along the riverbank.
Tamura Tokiwamachi-Sekimoto, Fukushima
Around 5:00 PM on 2026-07-16, two bears were sighted in Mansekimachi Kariyasu, Yonezawa City, Yamagata Prefecture.
Yonezawa Banseicho-Kariyasu, Yamagata
Environment: riverbed / Size: cub
Kawanishi 大字東大塚, Yamagata
One bear (approximately 1 meter in body length) was sighted.
Fukushima, Fukushima
Environment: Riverside / Size: Adult
Yonezawa Sekine, Yamagata
One bear was sighted in Takayama, Kawanishi Town, Yamagata, swimming downstream in the Mogami River.
Kawanishi 大字高山, Yamagata
Around 7:30 a.m. on the 15th, one bear about 1 meter long was seen in Sekine district, Yonezawa City.
Yonezawa Sekine, Yamagata
Environment: Farmland / Size: Unknown
Yonezawa Hanazawa, Yamagata
A bear was sighted in Hanazawa, Yonezawa City, on the morning of 2026-07-14.
Yonezawa Hanazawa, Yamagata
Environment: Near human dwellings / Size: Juvenile (young bear)
Yonezawa Misawa, Yamagata
Environment: Farmland / Size: Unknown
Yonezawa Banseicho-Zusayama, Yamagata
Environment: Near dwellings / Size: Adult
Yonezawa Sekine, Yamagata
Around 6:00 a.m. in Nakano-me, Nihonmatsu City, one bear about 1.5 m long was sighted crossing a field.
Nihonmatsu 中ノ目, Fukushima
A bear was seen leaving into a forest in Iizakamachi Yuno Matoba, Fukushima City.
Fukushima Iizakamachi-Yuno, Fukushima
A bear was sighted in Shinyu, Yuno, Iizakamachi, Fukushima City around 16:40 on July 11.
Fukushima Iizakamachi, Fukushima
Environment: Riverbed / Size: Adult and cub
Yonezawa Hosenmachi, Yamagata
Environment: road / Size: adult (fully grown)
Yonezawa Kiwada, Yamagata
A bear was sighted in Hirose-Hanmonba, Takine-machi, Tamura City around 12:50 on July 10.
Tamura, Fukushima
A bear was sighted around 18:00 in Takei, Yonezawa City, Yamagata Prefecture.
Yonezawa Takei, Yamagata
Environment: Riverbanks / Size: Adult
Yonezawa Sekine, Yamagata
One bear about 80 cm long was sighted in Sekine, Yonezawa City.
Yonezawa Sekine, Yamagata
Environment: Forest / Size: Adult
Yonezawa Sekine, Yamagata
One bear about 80 cm long was sighted in Sekine, Yonezawa City.
Yonezawa Sekine, Yamagata
Environment: Park / Size: Adult
Nanyo 竹原, Yamagata
One bear was sighted in a farm field in Kamiokuda, Kawanishi Town.
Kawanishi 大字上奥田, Yamagata
Peak activity at 6:00 with 6 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, 65 bear sightings were reported within 5 km of the route. The past 7 days account for 7 of them.
The latest sighting was reported 2 days ago near Yonezawa Sekine, Yamagata.
Recent sightings on this route peak around 6:00. Bears are generally most active at dawn and dusk.
This 713 km route runs from Nikko to Lake Sagami, passing through Tochigi, Yamagata, Fukushima, Kanagawa, Chiba, Ibaraki, Niigata, Saitama, and Tokyo. In the past 30 days, 65 bear sightings were reported within 5 km of the route. The past 7 days account for 7 of them. The latest sighting was reported 2 days ago near Yonezawa Sekine, Yamagata. This is an active bear corridor. Rerouting or rescheduling your hike is strongly advised.
