Mountains & Hiking · Nagano
Mount Aka (Yatsugatake) Black Bear Incidents
Bear incident and sighting reports for Mount Aka (Yatsugatake), compiled from official government sources, news outlets, and community submissions. View the interactive incident map and safety information before hiking or outdoor activities.
Mount Aka (Yatsugatake) has had 6 recorded black bear sightings in the provided log, with the most recent on 2025-11-08 in Hara 上里 where one black bear was seen. Activity has been intermittent across months rather than concentrated, with single sightings in 2025-10, 2025-09, and 2025-05 as well as earlier reports in 2024-10 and 2024-08.
The current action is focused near Hara 上里, and there was also a mother and cub observed in Chino Toyohira on 2025-09-23 which stands out among the entries. Overall the log shows 6 total sightings spread over different places and months, so recent activity is present but not densely clustered.
Mount Aka (Yatsugatake) Bear Incident Map
No incidents in this time range
No incidents in this time range
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Frequently Asked Questions About Bears in Mount Aka (Yatsugatake)
How many bear incidents have been recorded in Mount Aka (Yatsugatake)?
Mount Aka (Yatsugatake) has 6 recorded bear incidents in total, but no activity has been reported in the last 30 days. Bear activity varies seasonally, so always check the latest status before hiking or spending time outdoors.
When and where was the latest bear incident in Mount Aka (Yatsugatake)?
The most recent bear sighting in Mount Aka (Yatsugatake) was on November 8, 2025 in Hara 上里, Nagano, where 1 Black Bear was reported. Detailed location and surrounding incidents are available on the incident map.
Where have bears appeared recently in Mount Aka (Yatsugatake)?
Recent bear sightings in Mount Aka (Yatsugatake) have been concentrated in Hara 上里 (1), Minamimaki 大字野辺山 (1), Chino Toyohira (1). These areas have had multiple reports within the last 30 days.
Is bear activity increasing in Mount Aka (Yatsugatake)?
No recent activity to assess.
What type of bears are in Mount Aka (Yatsugatake)?
Mount Aka (Yatsugatake) is home to Asian black bears, which weigh up to 120kg and inhabit the mountains of Honshu and Shikoku. They are generally shy but can be dangerous when surprised or protecting cubs. Carry bear bells while hiking.