Where: Missouri · North America · approx. 37.81, -90.52 (vicinity only)
Why this spot: Rockhounding locality: Mississippi Valley-type lead-zinc chat piles
What turns up: galena, sphalerite, dolomite, calcite, chalcopyrite
Access: Prohibited / view only.
Collecting/removal is not allowed in this Missouri state park, and the mine-tailings area is a posted lead health hazard—do not collect.
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.