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This 12 km route runs from Karuizawa to Tsumagoi, passing through Nagano and Gunma. In the past 30 days, 22 bear sightings were reported within 5 km of the route. The past 7 days account for 1 of them. The latest sighting was reported 1 day ago near Karuizawa 中軽井沢, Nagano.
At this density of recent sightings, be ready to brake at any moment and avoid stopping in flagged stretches.
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 (fully grown)
Karuizawa 大字長倉, Nagano
Karuizawa, 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
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)
Karuizawa 大字追分, Nagano
Tsumagoi, Gunma
One bear was sighted in Oiwake, Karuizawa Town. A nearby resident reported seeing a large black object moving in the forest.
Karuizawa 大字追分, 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
Tsumagoi Kanbara, Gunma
Size: unknown
Karuizawa 大字追分, 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
Size: Adult
Karuizawa 大字長倉, Nagano
Size: Adult (fully grown)
Karuizawa 大字追分, Nagano
Around 5 PM on 2026-05-25, a bear was sighted in Oiwake, Karuizawa Town, Nagano Prefecture.
Karuizawa 大字追分, Nagano
Size: adult
Karuizawa 軽井沢, Nagano
Peak activity at 17:00 with 2 incidents
Ursus thibetanus japonicus
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For mountain rescue, call 110 (police). They will coordinate with local rescue teams.
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In the past 30 days, 22 bear sightings were reported within 5 km of the route. The past 7 days account for 1 of them.
The latest sighting was reported 1 day ago near Karuizawa 中軽井沢, Nagano.
Recent sightings on this route peak around 17:00. Bears are generally most active at dawn and dusk.
This 12 km route runs from Karuizawa to Tsumagoi, passing through Nagano and Gunma. In the past 30 days, 22 bear sightings were reported within 5 km of the route. The past 7 days account for 1 of them. The latest sighting was reported 1 day ago near Karuizawa 中軽井沢, Nagano. At this density of recent sightings, be ready to brake at any moment and avoid stopping in flagged stretches.
