Rockhounding in Somerset County, New Jersey

9 mapped rockhounding spots in Somerset County. Most commonly produces quartz, agate, prehnite, albite.

Minerals reported in Somerset County

Spots in Somerset County

Spot	Minerals	Coordinates	Access
3M QuarryRidge Trail	Quartz Agate Jasper	40.4583, -74.7135	Public
BarnardsvilleOld Quarry Road	Agate Geodes Quartz	40.7095, -74.5740	Public
Bound BrookFire Road	Agate Bornite Calcite Chalcocite Copper Silver Prehnite Quartz +3 more	40.5890, -74.5678	Public
HopewellLong Hill Road	Calcite Stilbite Prehnite Malachite Chalcopyrite Copper	40.4578, -74.7207	Public
KingstonGeorgetown-Franklin Turnpike	Agate Prehnite Quartz	40.3971, -74.6095	Public
Rock Hill QuarryGeorgetown-Franklin Turnpike	Albite Chalcocite Chrysocolla Galena Goethite Malachite Prehnite Quartz +1 more	40.3969, -74.6168	Public
SomervilleChimney Rock Road	Agate Albite Datolite Copper Silver Quartz Serpentine	40.5847, -74.5672	Public
Union CountyValley Road	Agate Apophyllite Albite Bornite Chalcedony Datolite Galena Hematite +1 more	40.6602, -74.4091	Public
Warren TownshipRed Hill Road	Banded Agate Moss Agate Chalcedony Jasper Petrified Wood Quartz Amethyst Citrine +1 more	40.6298, -74.5312	Public

Other rockhounding counties in New Jersey

Somerset County FAQ

Where can I rockhound in Somerset County, New Jersey?+

RockHoundR tracks 9 rockhounding spots in Somerset County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.

What rocks and minerals are common in Somerset County?+

Spots in Somerset County most often produce Quartz, Agate, Prehnite, Albite, Copper. Individual spots can vary widely.

Are these Somerset 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 Somerset County rockhounding trip

Open RockHoundR to see these spots on the map alongside land overlays, weather, geology, and your saved finds.