Where: Montana · North America · approx. 46.27, -105.84 (vicinity only)
Why this spot: Rockhounding locality: river gravels carrying Montana (moss) agate
What turns up: Montana moss agate, chalcedony, jasper
Access: Gray area.
Gravel bars below the ordinary high-water line are collectible under Montana stream-access law, but reaching them often crosses private land requiring permission.
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.