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Central Mine: Copper & Chlorastrolite Rockhounding in Keweenaw County, Michigan

Updated August 2026

Central Mine is a mapped rockhounding spot in Keweenaw County, Michigan. Reported finds include copper, chlorastrolite. Below: coordinates, access notes, nearby spots, and trip-planning links.

Map showing Central Mine in Keweenaw County, Michigan

Quick details

Access
Permission required
Nearest road
US 41
Postcode
49950

Land & collecting status

Permission required before collecting

Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

State guidance last verified:

Found at Central Mine

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Central Mine.

Across the state line from Central Mine

Central Mine is close enough to the Michigan border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Central Mine FAQ

Where is Central Mine?+
Central Mine is in Keweenaw County, Michigan, at 47.40504, -88.19570. Nearest road: US 41.
What rocks and minerals can you find at Central Mine?+
Central Mine is reported to produce Copper, Chlorastrolite.
Is collecting allowed at Central Mine?+
Permission required before collecting. Requires landowner or agency permission before any collecting. Do not enter without explicit authorization. Always confirm current rules with the managing agency before a trip.
What tools should I bring to Central Mine?+
A rock hammer, gloves, and safety glasses are enough for oxidized copper ground. Look for green and blue staining on weathered rock and in old dump piles.
How do I get to Central Mine?+
Open the directions link to navigate to 47.40504, -88.19570 in Google Maps. The nearest road is US 41.

More rockhounding in Michigan

See all 119 Michigan spots →

Open Central Mine on the map

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