Where: Ontario · North America · approx. 45.05, -77.9 (vicinity only)
Why this spot: Grenville Precambrian
What turns up: Betafite, uranophane, and other radioactive minerals plus large biotite and calcite in the pegmatite dumps
Access: Gray area.
On former mine land near Bancroft; access has varied, ask locally and be aware finds are radioactive.
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.