Where: Pennsylvania · North America · approx. 40.19, -75.74 (vicinity only)
Why this spot: Precambrian
What turns up: Magnetite, chalcopyrite, pyrite and fluorescent minerals on the dumps
Access: Gray area.
State game/park land nearby; historic mine access varies, verify current rules.
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.