Explore / North America / Michigan
Michigan
Central Mine, Keweenaw, MI
Mineral locality Source-confirmed findsPermission required
What you could find
Reported finds from this ground.
Nails and fittings
Coins and tokens
Crystals and mineralsAlso reported: epidote, prehnite.
Photos via Wikimedia Commons: North Lincolnshire Museum, Martin Foreman, (CC BY 2.0), West Yorkshire Archaeology Advisory Service, Amy Downes, (CC BY-SA 2.0), Stephanie Clifford from Arlington, VA, USA (CC BY 2.0).
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Why this spot
Rockhounding locality: native copper in Portage Lake basalts
Famous Keweenaw native-copper mine with poor-rock dumps, documented on mindat and in copper-country guides.View source →
Before you go
Hazards noted for this site.
Shafts, unstable rock piles
Keep exploring nearby
More spots in this area.