Montour Preserve PA: Mahantango fossil pit

Where: East · North America · approx. 41.11, -76.65 (vicinity only)

Why this spot: Rockhounding locality: one-acre pit in Devonian Mahantango Formation shale, opened as a public collecting site beside the Lake Chillisquaque preserve

What turns up: brachiopods, crinoid columnals, bryozoans, corals, gastropods, cephalopods, occasional trilobites

Access: Open / legal.

Free, open dawn to dark year round, visitors may keep fossils; foot traffic only, no pets in the pit

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.