Minnesota Lake Superior Shoreline — Agate / Beach-Rock Context
Lake Superior agates, basalt, rhyolite, amygdaloids and beach cobbles
Core atlasMINNESOTA LOCAL FIELD REGION
Iron formation, taconite and historic mining research; operator access required.
LOCAL INTERACTIVE MAP
Explore nearby Minnesota records without leaving this hub. Status, coordinate precision and access evidence determine whether a pin is a realistic field destination.

Reference photograph used for rock and mineral identification. It is not from this exact location or a guarantee that collecting is permitted.
The records below may represent collecting sites, managed programs, protected resources or research-only geology. Their individual status is more important than proximity.
Lake Superior agates, basalt, rhyolite, amygdaloids and beach cobbles
Core atlasIron
USGS ResearchIron
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USGS ResearchIron
USGS Researchbanded iron formation, hematite, magnetite and taconite
Core atlas