Cities & Towns · Nagano
Achi Black Bear Incidents
Bear incident and sighting reports for Achi, compiled from official government sources, news outlets, and community submissions. View the interactive incident map and safety information before hiking or outdoor activities.
Achi's latest black bear report came on March 11, 2026, when a mother and cub were seen in Achi. That keeps the area active into spring, after a run of sightings that also included December 7, 2025 in Achi and several reports through November 2025.
Most of the activity has centered on Achi itself, with additional sightings in Achi Maruyama and Achi Sonohara. The pace peaked in November 2025 with 16 reports, then eased to 3 in October 2025, 1 in December 2025, and 1 in March 2026, for a total of 26 black bear sightings overall.
Achi Bear Incident Map
No incidents in this time range
No incidents in this time range
Places in Nagano
Comments (1)
11月だけで8件報告されてるのか、相当な頻度で出没してるんだな。
Hiking in bear country
Safety picks and trail essentials, top-rated on Amazon and Rakuten.
Frequently Asked Questions About Bears in Achi
How many bear incidents have been recorded in Achi?
Achi has 26 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 Achi?
The most recent bear sighting in Achi was on March 10, 2026 in Achi, Nagano, where 1 Black Bear was reported. Detailed location and surrounding incidents are available on the incident map.
Where have bears appeared recently in Achi?
Recent bear sightings in Achi have been concentrated in Achi Takinozawa (4), Achi 矢越 (3), Achi 横川 (2). These areas have had multiple reports within the last 30 days.
Is bear activity increasing in Achi?
No recent activity to assess.
What type of bears are in Achi?
Achi 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.