Caldwell: Agate & Carnelian Rockhounding in Mecklenburg County, North Carolina

Updated June 2026

Caldwell is a mapped rockhounding spot in Mecklenburg County, North Carolina. Reported finds include agate, carnelian, chalcedony. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Mecklenburg County
State: North Carolina
Nearest road: Bailey Road
Postcode: 28031
Coordinates: 35.46553, -80.82696

Geology at Caldwell

This spot sits on Metamorphosed Quartz Diorite, mapped as metadiorite that formed roughly 1000 to 250 million years ago. Plutonic rock like this weathers slowly into grus and boulders, and the most productive collecting is typically in weathered zones and drainages.

Mapped unit: Metamorphosed Quartz Diorite
Age: 1000–250 Ma (Neoproterozoic to Paleozoic)
Rock types: metadiorite
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 Caldwell

Best months: August to June. Typical highs run 92°F in midsummer and 53°F in midwinter, with winter lows near 29°F.

Climate normals: NOAA 1991-2020 monthlies, CONCORD station (15 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 Caldwell

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 Caldwell.

Across the state line from Caldwell

Caldwell 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.

Caldwell FAQ

Where is Caldwell?+

Caldwell is in Mecklenburg County, North Carolina, at 35.46553, -80.82696. Nearest road: Bailey Road.

What rocks and minerals can you find at Caldwell?+

Caldwell is reported to produce Agate, Carnelian, Chalcedony.

Is collecting allowed at Caldwell?+

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 Caldwell?+

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 Caldwell?+

The most comfortable months at Caldwell are August to June.

How do I get to Caldwell?+

Open the directions link to navigate to 35.46553, -80.82696 in Google Maps. The nearest road is Bailey Road.

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