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  4. Matsumoto Castle to Ariake yama Hiking Route

Matsumoto Castle to Ariake yama Hiking Route

High Risk · 34.3 km · 2 stops · 14 sightings · Saved April 20, 2026 · Last updated 6 hours ago
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10
Incidents in last 7 days
14
Incidents in last 30 days
3 days ago
Latest Incident

Safety Summary

This 34.3 km route from Matsumoto Castle to Ariake yama crosses Nagano. Over the past 30 days, 14 bear sightings have been recorded within 5 km of the route, including 10 in the past week. This route runs through Asian black bear habitat (native to Honshu and Shikoku). The most recent sighting was reported 3 days ago near Azumino 穂高有明, Nagano; the location sits about 26.4 km from the start of the route and 2.5 km off the route line. The closest sighting to the route line was reported 3 weeks ago at Azumino 穂高北穂高, Nagano, sitting about 21.5 km from the start and 48 m off the route line.

At this density of recent sightings, consider rescheduling or choosing a different trail until activity quiets.

Your Route

Route Profile

Highlights Along Your Route (5)

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

Kaichi School
Moderate Risk

Kaichi School

Nagano

273 incidents

Matsumoto Castle
Low Risk

Matsumoto Castle

Nagano

271 incidents

Matsumoto City Timepiece Museum
Low Risk

Matsumoto City Timepiece Museum

Nagano

277 incidents

Japan Ukiyo-e Museum
Moderate Risk

Japan Ukiyo-e Museum

Nagano

320 incidents

Ariake yama
Low Risk

Ariake yama

Nagano

195 incidents

Kaichi School
Moderate Risk

Kaichi School

Nagano

273 incidents

Matsumoto Castle
Low Risk

Matsumoto Castle

Nagano

271 incidents

Matsumoto City Timepiece Museum
Low Risk

Matsumoto City Timepiece Museum

Nagano

277 incidents

Japan Ukiyo-e Museum
Moderate Risk

Japan Ukiyo-e Museum

Nagano

320 incidents

Ariake yama
Low Risk

Ariake yama

Nagano

195 incidents

Route Timeline

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Matsumoto Castle, Nagano
High Risk 34.3 km 14 sightings within 5 km
Azumino 穂高有明, Nagano

Size: cub

Azumino 穂高有明, Nagano

Official ·3 days ago
Azumino 豊科南穂高, Nagano

A single bear appeared in the garden of a private home in Azumino City, Nagano Prefecture, and was captured with a tranquillizer gun. Experts warn the bear is likely awake from hibernation and searching for food.

Azumino 豊科南穂高, Nagano

News ·4 days ago
Azumino 穂高有明, Nagano

On May 3 in Hotaka Ariake, Azumino City, Nagano Prefecture, a roughly 1‑meter bear stayed in the backyard of a residence for about four hours and was captured and euthanized with a tranquilizer gun by hunters around 14:30. The area mixes fields and houses, and no injuries to residents were reported.

Azumino 穂高有明, Nagano

News ·4 days ago
Show 11 more
Azumino 穂高有明, Nagano

On May 3, 2026, an adult bear (about 1 meter long) was sighted around 09:00 in the yard of a private home in Hotaka Ariake, Azumino City, Nagano. City officials, police and local hunters guarded the area, and the bear was captured with a tranquilizer gun around 14:30 and subsequently euthanized. No injuries or property damage were reported.

Azumino 穂高有明, Nagano

News ·4 days ago
Azumino 豊科南穂高, Nagano

On 2026-05-03, one bear appeared in the garden of a private home in Azumino City, Nagano Prefecture and remained there for about four hours before the hunting association captured it with a tranquillizer gun. The bear was an adult about one meter long; there were no injuries or property damage.

Azumino 豊科南穂高, Nagano

News ·4 days ago
Azumino, Nagano

Size: adult

Azumino, Nagano

Official ·5 days ago
Azumino, Nagano

Size: adult

Azumino, Nagano

Official ·5 days ago
Azumino, Nagano

Size: adult (fully grown)

Azumino, Nagano

Official ·5 days ago
Azumino 穂高有明, Nagano

Size: Adult

Azumino 穂高有明, Nagano

Official ·5 days ago
Azumino 穂高有明, Nagano

Size: Adult

Azumino 穂高有明, Nagano

Official ·5 days ago
Ikeda Nakau, Nagano

Size: juvenile

Ikeda Nakau, Nagano

Official ·2 weeks ago
Azumino, Nagano

Size: Adult

Azumino, Nagano

Official ·3 weeks ago
Azumino Kitahosono, Nagano

Bear Sighting Information This is a notice from the Azumino City Agricultural Land and Forestry Division regarding a bear sighting. On April 15, around 7:00 AM, a sighting of one cub was reported on the riverbed approximately 300m south of the Takasegawa-nishi intersection in the Hotaka Kita-Hotaka area. If you live nearby or are going out, please carry noise-making items such as a radio or bell, and avoid approaching bushes as much as possible. Also, please do not leave food or other attractants outside the house. If you sight a bear, please contact the Agricultural Land and Forestry Division (direct: 71-2432, main: 71-2000). Azumino City Hall, Agricultural Land and Forestry Division

Azumino Kitahosono, Nagano

3 weeks ago
Azumino 穂高北穂高, Nagano

Size: Adult

Azumino 穂高北穂高, Nagano

Official ·3 weeks ago
G
Ariake yama, Nagano
Total Distance: 34.3 km

When Are Bears Most Active?

Peak activity at 9:00 with 2 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.

Trip Report - Lake Biwa
Bear risk analysis map showing route with safety levels
Very High Risk
High Risk
Moderate Risk
Low Risk

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Frequently Asked Questions About This Route

How many bear sightings are on this route?

Over the past 30 days, 14 bear sightings have been recorded within 5 km of this route, including 10 in the past week. This route runs through Asian black bear habitat (native to Honshu and Shikoku).

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

The most recent sighting was reported 3 days ago near Azumino 穂高有明, Nagano; the location sits about 26.4 km from the start of the route and 2.5 km off the route line.

What time of day are bears most active here?

Recent sightings on this route peak around 9:00. Bears are generally most active at dawn and dusk.

Is this route safe to travel right now?

This 34.3 km route from Matsumoto Castle to Ariake yama crosses Nagano. Over the past 30 days, 14 bear sightings have been recorded within 5 km of the route, including 10 in the past week. This route runs through Asian black bear habitat (native to Honshu and Shikoku). The most recent sighting was reported 3 days ago near Azumino 穂高有明, Nagano; the location sits about 26.4 km from the start of the route and 2.5 km off the route line. The closest sighting to the route line was reported 3 weeks ago at Azumino 穂高北穂高, Nagano, sitting about 21.5 km from the start and 48 m off the route line. At this density of recent sightings, consider rescheduling or choosing a different trail until activity quiets.

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