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This 254 km route runs from Egota-no-Mori Park to Mount Madarao, passing through Tokyo, Nagano, Gunma, Niigata, and Saitama. In the past 30 days, 45 bear sightings were reported within 5 km of the route. The past 7 days account for 6 of them. The latest sighting was reported 3 days ago near Karuizawa 大字発地, Nagano.
This is an active bear corridor. Drive through with full caution, but rerouting is the safer choice.
8 places within 1 km of your route, passing through Tokyo, Nagano, Gunma, Niigata, Saitama.
Around 8:20 AM on 2026-07-24, one bear was sighted in Hatachi, Karuizawa Town, Nagano Prefecture.
Karuizawa 大字発地, Nagano
Size: juvenile
Karuizawa, Nagano
Size: Adult
Karuizawa 大字発地, Nagano
A bear was sighted in Mogusa, Karuizawa Town, Nagano Prefecture, around 7:15 a.m. on July 21.
Karuizawa 大字茂沢, Nagano
Size: Adult
Karuizawa 大字茂沢, Nagano
Size: Adult
Nakano Shinoi, Nagano
Annaka 松井田町行田, Gunma
One bear was seen moving in Matsuida-cho Gyoda, Annaka City, Gunma.
Annaka 松井田町行田, Gunma
Size: Unknown
Ueda, Nagano
A bear was sighted in Niino, Nakano City, Nagano Prefecture on 2026-07-18.
Nakano Shinno, Nagano
Size: Adult
Ueda 真田町傍陽, Nagano
Size: adult (fully grown)
Karuizawa, Nagano
A bear was sighted in Tarumoto, Myoko City.
Myoko, Niigata
Around 9:30 on July 13, a bear was sighted in Togura, Chikuma City, Nagano, and was captured.
Chikuma Togura, Nagano
Size: Unknown
Iiyama, Nagano
Size: Adult
Chikuma Togura, Nagano
I was riding a motorcycle on a tour, and it was just at the spot where the guardrail goes into the mountain, so I didn't take any photos and the location is not exact. I was heading west and report an approximate location based on my memory that it was a left-hand curve a little past the Megane Bridge parking area, at a place with a white guardrail.
Annaka, Gunma
A bear fell from the trees around between lift pylons 14 and 15 on the tracking course between Tangram Madarao Hotel and Nojiri Lake Terrace, then ran up the mountain.
Shinano 古海, Nagano
Around 13:10 on 2026-07-10, a bear was sighted in Shiga, Saku City, Nagano Prefecture.
Saku, Nagano
On 2026-07-10 in Shinkoda, Saku City, Nagano, a bear was sighted.
Saku Arakoda, Nagano
Size: Unknown
Ueda Sanadamachi-Motohara, Nagano
Size: juvenile
Karuizawa, Nagano
Size: Adult
Karuizawa, Nagano
Size: unknown
Ueda Tonoshiro, Nagano
A bear was sighted in Hatsuji, Karuizawa Town, Nagano, around 10:20 on July 6.
Karuizawa 大字発地, Nagano
Tomioka 妙義町上高田, Gunma
While trekking the Shinetsu Trail, I spotted a bear walking on Mansaka Pass. About 1 meter long.
Shinano 古海, Nagano
Size: adult
Karuizawa, Nagano
Size: Adult
Sakaki Minamijo, Nagano
On 2026-07-04 afternoon, a bear was sighted in Hosshi, Karuizawa Town, Nagano Prefecture.
Karuizawa 大字発地, Nagano
Shimonita, Gunma
Around 7 PM on July 3, a bear was sighted in Nishinomaki, Shimonita Town.
Shimonita Nishinomaki, Gunma
Around 8:00 on 2026-07-03, a bear was sighted in Hotchi, Karuizawa Town, Nagano Prefecture.
Karuizawa 大字発地, Nagano
Size: Adult
Karuizawa, Nagano
Size: Unknown
Iiyama Asahi, Nagano
A bear was sighted in Matsuida-machi Doshio, Annaka City.
Annaka 松井田町土塩, Gunma
One bear was sighted in Toyono, Toyono-machi, Nagano City.
Nagano Toyonomachi-Toyono, Nagano
Size: Adult
Karuizawa, Nagano
Size: Adult
Karuizawa, Nagano
Size: adult (fully grown)
Nagano Toyonomachi-Toyono, Nagano
Size: Unknown
Ueda Ueno, Nagano
Size: Adult (fully grown)
Karuizawa, Nagano
Size: adult
Nagano Wakatsuki-Nishijo, Nagano
Size: Adult (fully grown)
Nagano Shinonoi-Okada, Nagano
Size: adult
Karuizawa 大字追分, Nagano
Peak activity at 7:00 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, 45 bear sightings were reported within 5 km of the route. The past 7 days account for 6 of them.
The latest sighting was reported 3 days ago near Karuizawa 大字発地, Nagano.
Recent sightings on this route peak around 7:00. Bears are generally most active at dawn and dusk.
This 254 km route runs from Egota-no-Mori Park to Mount Madarao, passing through Tokyo, Nagano, Gunma, Niigata, and Saitama. In the past 30 days, 45 bear sightings were reported within 5 km of the route. The past 7 days account for 6 of them. The latest sighting was reported 3 days ago near Karuizawa 大字発地, Nagano. This is an active bear corridor. Drive through with full caution, but rerouting is the safer choice.
