Where: Midwest · North America · approx. 46.82, -90.82 (vicinity only)
Why this spot: the Apostle Islands brownstone and fish port on Lake Superior
What turns up: 1850s-1900s Great Lakes bottles, stoneware, lumber and mining-era glass.
Access: Gray area.
Great Lakes and river frontages: the lakebed and navigable rivers are state-held below the ordinary high-water mark, and the old commercial waterfronts are largely private. Ask before you dig.
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.