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Mount Tengu to Mount Aka (Yatsugatake) Hiking Route

Hiking · Low Risk · 8.1 km · 2h 13m · 4 stops · Saved May 26, 2026 ·
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Incidents in last 30 days
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Safety Summary

This 8.1 km route runs from Mount Tengu to Mount Aka (Yatsugatake), passing through Nagano and Yamanashi. No bear sightings were reported within 5 km of the route in the past 30 days.

Standard precautions are enough. Stay alert and tell someone your plans.

Your Route

Route Profile

Highlights Along Your Route (6)

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

Mount Tengu
Low Risk

Mount Tengu

Nagano

5 incidents
Mount Iō (Yatsugatake)
Low Risk

Mount Iō (Yatsugatake)

Nagano

6 incidents
Mount Yoko (Southern Yatsugatake)
Low Risk

Mount Yoko (Southern Yatsugatake)

Nagano

7 incidents
Mount Aka (Yatsugatake)
Low Risk

Mount Aka (Yatsugatake)

Nagano

7 incidents
Yatsugatake Mountains
Low Risk

Yatsugatake Mountains

Nagano

7 incidents
Southern Yatsugatake Volcanic Group
Low Risk

Southern Yatsugatake Volcanic Group

Nagano

7 incidents

Route Timeline

|
S
Mount Tengu, Nagano
Low Risk 3.9 km 57m No incidents
1
Mount Iō (Yatsugatake), Nagano
Low Risk 2.0 km 29m No incidents
2
Mount Yoko (Southern Yatsugatake), Nagano
Low Risk 2.3 km 46m Includes steps No incidents
G
Mount Aka (Yatsugatake), Nagano
Total Distance: 8.1 km

When Are Bears Most Active?

Time data not available

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.

Bear risk analysis map showing route with safety levels

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Frequently Asked Questions About This Route

How many bear sightings are on this route?

No bear sightings were reported within 5 km of the route in the past 30 days.

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

No recent bear sightings within 5 km of this route.

What time of day are bears most active here?

No time-of-day data available for this route.

Is this route safe to travel right now?

This 8.1 km route runs from Mount Tengu to Mount Aka (Yatsugatake), passing through Nagano and Yamanashi. No bear sightings were reported within 5 km of the route in the past 30 days. Standard precautions are enough. Stay alert and tell someone your plans.

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