Superior Stone Company: Copper & Iron Rockhounding in Guilford County, North Carolina

Updated June 2026

Superior Stone Company is a mapped rockhounding spot in Guilford County, North Carolina. Reported finds include copper, iron, quartz. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Guilford County
State: North Carolina
Nearest road: Agate Road
Postcode: 27249
Coordinates: 36.11616, -79.61796

Geology at Superior Stone Company

This spot sits on Metamorphosed Granitic Rock, mapped as metagranite that formed roughly 720 to 495 million years ago. Granitic ground like this typically carries quartz veins and pockets, and weathered crystals tend to collect in the soils and drainages below.

Mapped unit: Metamorphosed Granitic Rock
Age: 720–495 Ma (Neoproterozoic to Middle Cambrian)
Rock types: metagranite
Elevation: 710 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 Superior Stone Company

Conditions here are workable year-round, with typical highs from 52°F in winter to 90°F in summer.

Climate normals: NOAA 1991-2020 monthlies, BURLINGTON ALAMANCE RGNL AP station (9 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 Superior Stone Company

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 Superior Stone Company.

Across the state line from Superior Stone Company

Superior Stone Company 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.

Superior Stone Company FAQ

Where is Superior Stone Company?+

Superior Stone Company is in Guilford County, North Carolina, at 36.11616, -79.61796. Nearest road: Agate Road.

What rocks and minerals can you find at Superior Stone Company?+

Superior Stone Company is reported to produce Copper, Iron, Quartz.

Is collecting allowed at Superior Stone Company?+

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 Superior Stone Company?+

A rock hammer, a small pry bar, gloves, and safety glasses cover most crystal ground. A screen helps in loose pocket soil, and newspaper protects points on the way out.

When is the best time to visit Superior Stone Company?+

Superior Stone Company is workable year-round.

How do I get to Superior Stone Company?+

Open the directions link to navigate to 36.11616, -79.61796 in Google Maps. The nearest road is Agate Road.

More rockhounding in North Carolina

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Open Superior Stone Company on the map

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