Where: Japan · Asia · approx. 36.63, 139.44 (vicinity only)
Why this spot: Rockhounding locality: Cu-polymetallic vein
What turns up: chalcopyrite, quartz, malachite, calcite
Access: Gray area.
Mine closed and partly a heritage site; collecting on dumps informal.
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.