Tourism Spots · Hokkaido
Lake Mashū Brown Bear Incidents
Brown Bear sighting and incident data compiled from official government records, news outlets, and community reports.
Latest Bear Activity in Lake Mashū
Lake Mashū had a Brown Bear report in Teshikaga Kussharo on June 20, 2026. All 2 incidents from the past 30 days were reported within the past 7 days. New reports appeared within the past week. Recent reports include Teshikaga and Teshikaga Kussharo. The area has 50 recorded incidents in total.
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Lake Mashū Bear Incident Map
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Frequently Asked Questions About Bears in Lake Mashū
How many bear incidents have been recorded in Lake Mashū?
Lake Mashū has recorded 50 bear incidents in total, with 2 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.
When and where was the latest bear incident in Lake Mashū?
The most recent bear sighting in Lake Mashū was on June 19, 2026 in Teshikaga Kussharo, Hokkaido, where 1 Brown Bear was reported. Detailed location and surrounding incidents are available on the incident map.
Where have bears appeared recently in Lake Mashū?
Recent bear sightings in Lake Mashū have been concentrated in Shibecha (22), Shibecha 字虹別原野 (8), Kiyosato (4). These areas have had multiple reports within the last 30 days.
Is bear activity increasing in Lake Mashū?
Activity is elevated. 2 of the 2 monthly incidents occurred in the last 7 days.
What type of bears are in Lake Mashū?
Lake Mashū 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.