Where: Ohio · North America · approx. 39.98, -82.36 (vicinity only)
Why this spot: Pennsylvanian
What turns up: Flint Ridge flint (Ohio state gem), colorful chalcedony/chert at fee pits
Access: Permission required.
Flint Ridge: state memorial is no-collect; adjacent private pits offer fee digging.
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.