Mountains & Hiking · Yamanashi
Hiryuusan Black Bear Incidents
Bear incident and sighting reports for Hiryuusan, compiled from official government sources, news outlets, and community submissions. View the interactive incident map and safety information before hiking or outdoor activities.
Hiryuusan has been watching a run of black bear reports around Mitsumine Shrine and Otaki, Chichibu City, and the sharpest recent alarm came on March 12, 2026 at 23:50, when a bear about 1.5 meters long was reported near the shrine and again near the Takizawa Dam management office. Another sighting followed in Otaki, Chichibu City on March 16, 2026, with a bear about 1.5 meters tall reported there as well.
The busiest ground has been around Chichibu Mitsumine and Otaki, Chichibu, with activity also turning up in Chichibu 麻生. Reports peaked in October 2025 with 12 incidents and stayed high in November 2025 with 11, while March 2026 and January 2026 each showed 4 incidents; this area has now recorded 145 black bear sightings overall.
Hiryuusan 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 Hiryuusan
How many bear incidents have been recorded in Hiryuusan?
Hiryuusan has 145 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 Hiryuusan?
The most recent bear sighting in Hiryuusan was on March 15, 2026 in Otaki, Chichibu City, Saitama, where 1 Black Bear was reported. Detailed location and surrounding incidents are available on the incident map.
Where have bears appeared recently in Hiryuusan?
Recent bear sightings in Hiryuusan have been concentrated in Tokyo (19), Chichibu Mitsumine (17), Chichibu 栃本 (7). These areas have had multiple reports within the last 30 days.
Is bear activity increasing in Hiryuusan?
No recent activity to assess.
What type of bears are in Hiryuusan?
Hiryuusan 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.