Where: Michigan · North America · approx. 46.55, -87.39 (vicinity only)
Why this spot: 1900 historic-map era
What turns up: Iron-shipping-era bottle glass, ceramic and lake-glass in the cobble beaches below the historic ore docks.
Access: Gray area.
Public shoreline and state-owned lakebed; loose lake-glass picking common, historic removal restricted.
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.