MUDLARK MAP

Explore › Michigan rockhounding

Grand Marais Agate Beaches

ROCKHOUNDING OPEN / LEGAL DOCUMENTED

Where: Michigan · North America · approx. 46.67, -85.98 (vicinity only)

Why this spot: Lake Superior basalt derived agates

What turns up: Lake Superior agates, jaspers, and datolite pebbles along the shore

Access: Open / legal.

Public Lake Superior shoreline; surface hand collecting is allowed.

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.