Tenryū River Black Bear Incidents

Tenryū River has recorded 198 bear incidents in total, with 5 reported in the last 30 days and 2 in the last 7 days. These reports are compiled from official government sources, news outlets, and community submissions, and can be viewed on the incident map.

The most recent bear sighting in Tenryū River was on May 4, 2026 in Chino Kohigashi, Nagano, where 1 Black Bear was reported. Detailed location and surrounding incidents are available on the incident map.

Recent bear sightings in Tenryū River have been concentrated in Shiojiri (19), Shiojiri Soga (8), Shiojiri 桔梗ヶ原 (6). These areas have had multiple reports within the last 30 days.

Activity is elevated. 2 of the 5 monthly incidents occurred in the last 7 days.

Tenryū River 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.