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Michigan

McLain State Park beach

Agate beach or gravel Documented siteLegal to collect
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What you could find

Reported finds from this ground.

Agates and jasperAgates and jasper
Nails and fittingsNails and fittings

Also reported: datolite.

Photos via Wikimedia Commons: Teerui (Public domain), North Lincolnshire Museum, Martin Foreman, (CC BY 2.0).

Why this spot

Superior shoreline west of Hancock where longshore drift concentrates copper-range gravels

Popular pick in Michigan state park rockhounding write-ups.

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.
Calumet Waterworks Park beach9 km away · Agate beach or gravel
›
Calumet MI: Copper Country dumps11 km away · Old dump ground
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Keweenaw Peninsula copper / datolite dumps, Michigan11 km away · Mineral locality
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Keweenaw MI: copper & Lake Superior agate12 km away · Mineral locality
›