Explore › Montana rockhounding
Spokane Bar / El Dorado Bar Sapphire (Missouri River)
ROCKHOUNDING
OPEN / LEGAL
DOCUMENTED
Where: Montana · North America · approx. 46.65, -111.85 (vicinity only)
Why this spot: Tertiary
What turns up: Montana sapphire (pastel alluvial)
Access: Open / legal.
Private fee-dig on Missouri River bars near Helena.
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.