Sayreville — Rockhounding in Middlesex County, New Jersey
Sayreville is a mapped rockhounding spot in Middlesex County, New Jersey. Reported finds include marcasite, pyrite, petrified wood. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Sayreville in Middlesex County, New Jersey
Quick details
- Access
- Public area
- County
- Middlesex County
- State
- New Jersey
- Nearest road
- Bordentown Avenue
- Postcode
- 08879
- Coordinates
- 40.43869, -74.32979
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
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.
Found at Sayreville
Each chip links to all spots in the U.S. that produce that material.
Nearby rockhounding spots
Other rockhounding spots within driving distance of Sayreville.
- KingstonSomerset County · 15 mi awayAgate, Prehnite, Quartz
- Rock Hill QuarrySomerset County · 15 mi awayAlbite, Chalcocite, Chrysocolla
- Union CountySomerset County · 16 mi awayAgate, Apophyllite, Albite
- SomervilleSomerset County · 16 mi awayAgate, Albite, Datolite
- Bound BrookSomerset County · 16 mi awayAgate, Bornite, Calcite
- Warren TownshipSomerset County · 17 mi awayBanded Agate, Moss Agate, Chalcedony
- Houdaille QuarryUnion County · 19 mi awayAgate, Prehnite, Amethyst
- General Area (Hudson/Passaic)Hudson County · 19 mi awayBanded Agate, Albite, Amethyst
