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  4. Karuizawa to Yanba Dam Drive

Karuizawa to Yanba Dam Drive

Driving · Moderate Risk · 41 km · 57m · 2 stops · 9 sightings · Saved May 17, 2026 · Last updated 49 minutes ago
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Incidents in last 7 days
9
Incidents in last 30 days
1 week ago
Latest

Safety Summary

This 41 km route runs from Karuizawa to Yanba Dam, passing through Nagano and Gunma. In the past 30 days, 9 bear sightings were reported within 5 km of the route. No reports were recorded in the past 7 days. The latest sighting was reported 1 week ago near Tsumagoi Saikubo, Gunma.

With activity this close, slow through forested stretches and stay alert at dawn and dusk when bears cross roads.

Your Route

Route Profile

Highlights Along Your Route (1)

1 places within 1 km of your route, passing through Nagano, Gunma.

Yanba Dam
Moderate Risk

Yanba Dam

Gunma

419 incidents

Yanba Dam
Moderate Risk

Yanba Dam

Gunma

419 incidents

Route Timeline

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S
Karuizawa, Nagano
Moderate Risk 41 km 57m 9 sightings within 5 km
Tsumagoi Saikubo, Gunma

Tsumagoi Saikubo, Gunma

Official ·1 week ago

Size: juvenile

Karuizawa 大字長倉, Nagano

Official ·1 week ago

Size: adult

Karuizawa 軽井沢, Nagano

Official ·1 week ago
Show 6 more
Karuizawa, Nagano

A bear was crossing the road.

Karuizawa, Nagano

2 weeks ago

Tsumagoi Saikubo, Gunma

Official ·2 weeks ago
Karuizawa, Nagano

While proceeding along the Romantic Road from Mine-no-chaya, I saw a bear larger than one meter in the stand of mixed trees on my left.

Karuizawa, Nagano

2 weeks ago
Tsumagoi, Gunma

Tsumagoi, Gunma

Official ·3 weeks ago
Karuizawa 中軽井沢, Nagano

Karuizawa Town in Kitasaku District has temporarily shifted its policy from releasing captured bears after 'learning' to euthanizing them for a limited period. The change responds to repeated human injuries and appearances of bears in residential areas across the prefecture and concerns that bears' wide-ranging movements could cause harm to neighboring municipalities.

Karuizawa 中軽井沢, Nagano

News ·3 weeks ago
Higashiagatsuma Matsuya, Gunma

Along National Route 145 in Tōgōzuma Town. The area includes hot spring facilities, a roadside station, and a rail-bike facility, and an animal believed to be an Asiatic black bear (Tsukinowaguma) was sighted.

Higashiagatsuma Matsuya, Gunma

1 month ago
G
Yanba Dam, Gunma
Total Distance: 41 km

When Are Bears Most Active?

Peak activity at 18:00 with 3 incidents

Asian black bears on your route

Asian Black Bear

Asian Black Bear

Ursus thibetanus japonicus

Range
Honshu, Shikoku
Size
80–120 kg
Active
Dawn & dusk

Sharing space safely

  • ·Make noise as you walk; carry bear spray
  • ·If charged, stand firm and use the spray
  • ·If contact happens, resist firmly. They retreat when met with resistance
  • ·Don't climb. They climb better than you

Safety Checklist

Hiking in bear country

Safety picks and trail essentials, top-rated on Amazon and Rakuten.

Emergency Contacts

110
Police
119
Fire/Ambulance

For mountain rescue, call 110 (police). They will coordinate with local rescue teams.

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Frequently Asked Questions About This Route

How many bear sightings are on this route?

In the past 30 days, 9 bear sightings were reported within 5 km of the route. No reports were recorded in the past 7 days.

When and where was the most recent bear sighting near this route?

The latest sighting was reported 1 week ago near Tsumagoi Saikubo, Gunma.

What time of day are bears most active here?

Recent sightings on this route peak around 18:00. Bears are generally most active at dawn and dusk.

Is this route safe to travel right now?

This 41 km route runs from Karuizawa to Yanba Dam, passing through Nagano and Gunma. In the past 30 days, 9 bear sightings were reported within 5 km of the route. No reports were recorded in the past 7 days. The latest sighting was reported 1 week ago near Tsumagoi Saikubo, Gunma. With activity this close, slow through forested stretches and stay alert at dawn and dusk when bears cross roads.

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