Michigan fisher records are notably Upper Peninsular, with clusters around the Keweenaw Peninsula, Pictured Rocks, and Seney National Wildlife Refuge. These localities connect mature northern forest with rocky Lake Superior terrain and the wetland-forest mosaic of the eastern U.P., while roads and trails provide many of the actual observation opportunities.
Records exist across the calendar but peak in December, when snow can preserve tracks and leaf-off improves sight lines. That December signal and the named clusters describe reporting, not fisher abundance; remote forest away from public access is much less likely to generate a record.
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