Where: Pennsylvania · North America · approx. 39.72, -76.19 (vicinity only)
Why this spot: Rockhounding locality: State Line serpentine barrens yielding rare chromium and serpentine minerals
What turns up: chromite, brucite, kammererite, serpentine, magnetite
Access: Gray area.
Within protected State Line serpentine-barrens/conservation land; collecting requires permission and is often restricted.
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.