Bergen County: Agate & Amethyst Rockhounding in Bergen County, New Jersey

Updated June 2026

Bergen County is a mapped rockhounding spot in Bergen County, New Jersey. Reported finds include agate, amethyst, carnelian, chalcedony, datolite, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Bergen County
State: New Jersey
Nearest road: Soldier Hill Road
Postcode: 07676
Coordinates: 40.96535, -74.05417

Geology at Bergen County

This spot sits on Passaic Formation Conglomerate and Sandstone facies, mapped as conglomerate sandstone that formed roughly 200 to 145 million years ago. Tough silica like agate, jasper, and chert typically weathers out of beds like these and collects as float in drainages and on deflation surfaces.

Mapped unit: Passaic Formation Conglomerate and Sandstone facies
Age: 200–145 Ma (Early Jurassic to Late Jurassic)
Rock types: conglomerate sandstone
Elevation: 100 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.

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 Bergen County

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

Nearby rockhounding spots

Other rockhounding spots within driving distance of Bergen County.

Across the state line from Bergen County

Bergen County is close enough to the New Jersey border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Bergen County FAQ

Where is Bergen County?+

Bergen County is in Bergen County, New Jersey, at 40.96535, -74.05417. Nearest road: Soldier Hill Road.

What rocks and minerals can you find at Bergen County?+

Bergen County is reported to produce Agate, Amethyst, Carnelian, Chalcedony, Datolite, Natrolite, Common Opal, Fire Opal.

Is collecting allowed at Bergen County?+

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. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Bergen County?+

Most agate and jasper is surface float: bring a spray bottle, a pick or small shovel, and a sturdy bag. Wet stones show their banding and translucence.

How do I get to Bergen County?+

Open the directions link to navigate to 40.96535, -74.05417 in Google Maps. The nearest road is Soldier Hill Road.

More rockhounding in New Jersey

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Open Bergen County on the map

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