Muskallonge Lake SP MI: Yooperlite beach

ROCKHOUNDING OPEN / LEGAL DOCUMENTED

Where: Midwest · North America · approx. 46.67, -85.62 (vicinity only)

Why this spot: Rockhounding locality: fluorescent sodalite-bearing syenite cobbles (Yooperlites, found 2017) on the Lake Superior shore of the eastern Upper Peninsula

What turns up: Yooperlites (fluorescent sodalite syenite), Lake Superior agates, basalt and granite beach stones

Access: Open / legal.

Michigan state park: Recreation Passport required for entry, collecting limited to 25 lbs per person per year on state land; nearby Whitefish Point (Seney NWR) and Pictured Rocks NL prohibit collecting

Open in Mudlark Map →

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.

Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.