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MINNESOTA CITY ROCKHOUNDING HUB

Rockhounding Near Grand Marais, Minnesota

Upper North Shore geological exposures and protected/permit-sensitive coast.

Open this area on the main mapBrowse nearby records
31records within 90 mi
5core atlas
26USGS Research
0Ready
1Conditional

LOCAL INTERACTIVE MAP

Rockhounding map near Grand Marais

Explore nearby Minnesota records without leaving this hub. Status, coordinate precision and access evidence determine whether a pin is a realistic field destination.

31records within 90 mi
Map
Land intelligence
Precision
This hub map shows nearby records only.Land and claim layers are planning aids, not collecting permission.
Agate-family silica comparison. General comparison image, not a photograph of this specific field region.
Agate-family silica comparison

Reference photograph used for rock and mineral identification. It is not from this exact location or a guarantee that collecting is permitted.

What is this area strongest for?

This hub uses Grand Marais as a geographic base, while the material mix is calculated from the records actually mapped around it.

Thomsonite & North Shore Zeolites2 nearby recordsLake Superior Agates3 nearby recordsQuartz, Jasper & Chalcedony2 nearby records

Field regions around Grand Marais

Grand Marais & Upper North ShoreLake Superior basalt, agate, zeolite and protected shoreline contexts.Border Lakes & Protected Wilderness GeologyBedrock and glacial geology where wilderness restrictions override casual collecting assumptions.

Nearby records worth opening individually

Records are ordered by evidence status first, then distance. Open the detailed guide before treating any pin as a trip destination.

USA Rockhounding

A 50-state field atlas for finding places, understanding current status, and navigating carefully.

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Field principle

A map marker helps you investigate a place. It does not replace current land ownership, posted rules, permits, claims, closures, or local restrictions.

Metal detecting

USA Rockhounding · 50-state field discovery

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