Hillsborough: Moss Agate & Quartz Rockhounding in Orange County, North Carolina

Updated June 2026

Hillsborough is a mapped rockhounding spot in Orange County, North Carolina. Reported finds include moss agate, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Orange County
State: North Carolina
Nearest road: Ben Johnston Road
Postcode: 27278
Coordinates: 36.07128, -79.13140

Geology at Hillsborough

This spot sits on Intermediate Metavolcanic Rock, mapped as metaandesite that formed roughly 1000 to 485 million years ago. Volcanic ground like this is where agate, jasper, and other chalcedony typically form, filling old gas pockets and fracture seams in the flow rock.

Mapped unit: Intermediate Metavolcanic Rock
Age: 1000–485 Ma (Neoproterozoic to Cambrian)
Rock types: metaandesite
Elevation: 540 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 Hillsborough

Conditions here are workable year-round, with typical highs from 50°F in winter to 88°F in summer.

Climate normals: NOAA 1991-2020 monthlies, DURHAM 11 W station (7 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.

State guidance last verified: April 1, 2026

North Carolina Geological Survey
Nantahala/Pisgah National Forests
Emerald Hollow Mine (fee-dig operator)
Community submissions reviewed against published agency rules

Found at Hillsborough

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 Hillsborough.

Across the state line from Hillsborough

Hillsborough is close enough to the North Carolina border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Hillsborough FAQ

Where is Hillsborough?+

Hillsborough is in Orange County, North Carolina, at 36.07128, -79.13140. Nearest road: Ben Johnston Road.

What rocks and minerals can you find at Hillsborough?+

Hillsborough is reported to produce Moss Agate, Quartz.

Is collecting allowed at Hillsborough?+

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 Hillsborough?+

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.

When is the best time to visit Hillsborough?+

Hillsborough is workable year-round.

How do I get to Hillsborough?+

Open the directions link to navigate to 36.07128, -79.13140 in Google Maps. The nearest road is Ben Johnston Road.

More rockhounding in North Carolina

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Open Hillsborough on the map

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