Rockhounding in Plymouth County, Massachusetts
2 mapped rockhounding spots in Plymouth County. Most commonly produces agate, chalcedony, jasper.
Map showing 2 rockhounding spots in Plymouth County, Massachusetts
Minerals reported in Plymouth County
Spots in Plymouth County
| Spot | Minerals | Coordinates | Access |
|---|---|---|---|
| MarshfieldPorter Street | 42.1141, -70.6695 | Public | |
| MiddlesboroughWalnut Street | 41.8503, -70.8904 | Public |
Neighboring counties in Massachusetts
Adjacent rockhounding counties, ranked by how close their centroids sit to Plymouth County. A natural extension if Plymouth County is already on your trip plan.
- Essex County~52 mi3 spotsTop: Amazonite, Chalcopyrite, Galena
- Worcester County~66 mi4 spotsTop: Beryl, Chalcopyrite, Muscovite
- Franklin County~102 mi10 spotsTop: Agate, Chalcopyrite, Garnet
- Hampshire County~107 mi12 spotsTop: Beryl, Rhodonite, Smoky Quartz
- Hampden County~107 mi4 spotsTop: Amethyst, Beryl, Chromite
- Berkshire County~129 mi3 spotsTop: Asbestos, Green Quartz, Smoky Quartz
Across the state line from Plymouth 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 Massachusetts.
- Providence County~38 miRhode Island · 8 spotsTop: Quartz, Agate, Jasper
- Southeastern Connecticut Planning Region~77 miConnecticut · 3 spotsTop: Apatite, Corundum, Iron Ore
- Capitol Planning Region~96 miConnecticut · 9 spotsTop: Prehnite, Rose Quartz, Staurolite
- Lower Connecticut River Valley Planning Region~96 miConnecticut · 10 spotsTop: Beryl, Aquamarine, Rose Quartz
Plymouth County FAQ
Where can I rockhound in Plymouth County, Massachusetts?+
RockHoundR tracks 2 rockhounding spots in Plymouth County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Plymouth County?+
Spots in Plymouth County most often produce Agate, Chalcedony, Jasper. Individual spots can vary widely.
Are these Plymouth County rockhounding spots on public land?+
Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.
Plan a Plymouth County rockhounding trip
Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.
