Tourism Spots · Hokkaido
Iwamatsu Dam Brown Bear Incidents
Bear incident and sighting reports for Iwamatsu Dam, compiled from official government sources, news outlets, and community submissions. View the interactive incident map and safety information before hiking or outdoor activities.
Iwamatsu Dam was set against fresh Hokkaido concern on November 25, 2025, when a brown bear weighing about 380 kilograms was trapped and euthanized after experts warned that some bears had not yet fattened for hibernation and may still be searching for food. That is the kind of late season movement that keeps this area on alert.
The activity around Iwamatsu Dam sits within a broader pattern across Hokkaido, with the busiest stretch landing in October 2025 and November 2025 still seeing strong reporting. Across this area, there have been 16 brown bear sightings in total, and the recent reports have come from places such as Shintoku Town, Shikaoi Town, and Kameda Park, showing that the pressure is spread across towns, roads, rail lines, and park edges.
Iwamatsu Dam 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 Iwamatsu Dam
How many bear incidents have been recorded in Iwamatsu Dam?
Iwamatsu Dam has 16 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 Iwamatsu Dam?
The most recent bear sighting in Iwamatsu Dam was on November 25, 2025 in Unknown (within Hokkaido), Hokkaido, where 1 Brown Bear was reported. Detailed location and surrounding incidents are available on the incident map.
Where have bears appeared recently in Iwamatsu Dam?
Recent bear sightings in Iwamatsu Dam have been concentrated in Hokkaido (5), Unknown (within Hokkaido) (1), Kameda Park (1). These areas have had multiple reports within the last 30 days.
Is bear activity increasing in Iwamatsu Dam?
No recent activity to assess.
What type of bears are in Iwamatsu Dam?
Iwamatsu Dam is home to brown bears (Ussuri brown bear), which can weigh up to 500kg and are found only in Hokkaido. They are active from spring through autumn. Always carry bear bells and bear spray when hiking.