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Michigan

Ontonagon copper-era Lake Superior port

Tidal foreshore Documented siteGray area

What you could find

Reported finds from this shoreline.

Old bottlesOld bottles
Nails and fittingsNails and fittings
Sea potterySea pottery

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

Why this spot

1893 historic-map era

Boca of the copper country in the 1850s and a lumber port until the 1896 fire leveled the town; river-mouth fill and rebuilt waterfront hold both layers.

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.