Where: Portugal · Europe · approx. 40.16, -7.55 (vicinity only)
Why this spot: Rockhounding locality: tin-lithium cupola
What turns up: cassiterite, montebrasite, quartz
Access: Gray area.
Hilltop outcrops and old workings; check land access.
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.