Rockhounding in Keweenaw County, Michigan
5 mapped rockhounding spots in Keweenaw County. Most commonly produces quartz, carnelian, agate, agate nodules.
Keweenaw County rockhounding photos
Representative spot and material photos from this county, shown where verified public image records are available.
Map showing 5 rockhounding spots in Keweenaw County, Michigan
Minerals reported in Keweenaw County
- Quartz3
- Carnelian2
- Agate1
- Agate Nodules1
- Chalcedony1
- Chlorastrolite1
- Datolite1
- Jasper1
Standouts in Keweenaw County
Hand-picked spots in Keweenaw County, chosen for unusual mineralogy or documented public access. Each card opens the full coordinates and access notes.
Top pickKeweenaw Point
PublicKeweenaw County
The exposed Lake Shore Traps along the wave-washed tip of the Keweenaw Peninsula carry agate-filled amygdules and datolite, with larger Keweenaw agates working loose from a narrow gravel band at the waterline. The State of Michigan and The Nature Conservancy secured public access to roughly 6,275 acres here in 2003, keeping the Point open for shoreline collecting. Thomsonite and chalcedony round out the finds.
Keweenaw Agate, Thomsonite, Datolite, Chalcedony
Top pickManitou Island
PublicKeweenaw County
The 93-acre Manitou Island Light Station Preserve, owned by the Keweenaw Land Trust off the tip of the Keweenaw, is one of the few outer-island shores expressly open to the public for rock collecting. Its rocky Lake Superior shoreline yields Lake Superior agates and includes a visible quartz vein. The land trust acquired the preserve from the federal government in 2004.
Lake Superior Agate, Quartz
Spots in Keweenaw County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| Carnelian beachIsland Mine Trail | 47.9047, -89.0038 | Permission | |
| Keweenaw Point |
| 47.4079, -87.7115 | Public |
| Manitou Island | 47.4150, -87.6279 | Public | |
| Siskiwit Lake (South Side)Ishpeming Trail |
| 47.9887, -88.8074 | Permission |
| Tobin Harbor AreaStoll Trail | 48.1654, -88.4635 | Permission |
Neighboring counties in Michigan
Adjacent rockhounding counties, ranked by how close their centroids sit to Keweenaw County. A natural extension if Keweenaw County is already on your trip plan.
Across the state line from Keweenaw County
Rockhounding counties in neighboring states within driving range. Geology rarely respects state borders — these are often the closest mapped spots you can reach without going deeper into Michigan.
Keweenaw County FAQ
Where can I rockhound in Keweenaw County, Michigan?+
What rocks and minerals are common in Keweenaw County?+
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Plan a Keweenaw County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
