Where: Japan · Asia · approx. 40.22, 140.8 (vicinity only)
Why this spot: Rockhounding locality: Cu-Au vein
What turns up: chalcopyrite, pyrite, quartz, gold
Access: Permission required.
Now a mine-tour attraction; collecting only where sanctioned.
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.