Portsmouth Mine
Minnesota
Latitude: 46.490793
Longitude: -93.97144
Potential Finds: Agates, Chalcedony, Jasper, Binghamite, Manganese, Iron minerals
State: Minnesota
Longitude: -93.97144
Potential Finds: Agates, Chalcedony, Jasper, Binghamite, Manganese, Iron minerals
State: Minnesota
General Tips for Portsmouth Mine
When visiting Portsmouth Mine, always ensure you have enough water and appropriate tools. Best times to visit are usually Spring and Fall to avoid extreme temperatures. Check local regulations before digging.
Loading Map...
Location Details
Coordinates
46.49079, -93.97144
Potential Finds
Agates, Chalcedony, Jasper, Binghamite, Manganese, Iron minerals
Data Source
Information for Portsmouth Mine is provided by the Stone Identifier AI app. You can find thousands of additional rockhounding locations and AI recommendations not available on this website by downloading the app.
Find 100+ more sites in MinnesotaNearby in Minnesota
Arco Mine
Agates, Chalcedony, Jasper, Binghamite, Manganese, Iron minerals
Brainerd
Lake Superior Agate
Little Falls
Lake Superior Agate, Garnet, Staurolites
Charles Lindbergh State Park
Staurolites
Royalton
Staurolites
Pine City
Chalcocite
General Area
Lake Superior Agate, Iron minerals, Jasper
Hibbing
Iron minerals, Agate, Jasper, Marcasite, Pyrite, Goethite