Salem County: Amber Rockhounding in Salem County, New Jersey

Quick details

Access

Public area

County

Salem County

State

New Jersey

Nearest road

New Bridge Road

Postcode

08079

Coordinates

39.52954, -75.44986

Geology at Salem County

This spot sits on Lower Member of the Kirkwood Formation, mapped as clay and sand that formed roughly 23 to 16 million years ago. Loose deposits like these are float-collecting ground: erosion keeps moving durable rocks and minerals into gravel bars, cutbanks, and washes.

Mapped unit

Lower Member of the Kirkwood Formation

Age

23–16 Ma (Early Miocene)

Rock types

clay and sand

Elevation

-10 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Salem County

Best months: March to December. Typical highs run 87°F in midsummer and 42°F in midwinter, with winter lows near 25°F.

Climate normals: NOAA 1991-2020 monthlies, SEABROOK FARMS station (13 mi away).

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.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Salem County

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

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