Where: Rhode Island · North America · approx. 41.97, -71.46 (vicinity only)
Why this spot: The only significant outcrop of cumberlandite, Rhode Island's state rock
What turns up: cumberlandite float, magnetite-rich rock
Access: Gray area.
Town open space; hand samples from loose float are customary, leave the outcrop intact.
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.