Flag Pond: Unakite Rockhounding in Unicoi County, Tennessee

Quick details

Access

Public area

County

Unicoi County

State

Tennessee

Nearest road

James H. Quillen Parkway

Postcode

37657

Coordinates

36.01643, -82.54790

Geology at Flag Pond

This spot sits on Roan Gneiss, mapped as gneiss that formed roughly 4600 to 540 million years ago. Metamorphic rock like this weathers into resistant float, and minerals that survive transport typically concentrate in nearby drainages.

Mapped unit

Roan Gneiss

Age

4600–540 Ma (Precambrian)

Rock types

gneiss

Elevation

2,590 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 Flag Pond

Best months: February to December. Typical highs run 82°F in midsummer and 44°F in midwinter, with winter lows near 21°F.

Climate normals: NOAA 1991-2020 monthlies, ERWIN 1 W station (11 mi away), adjusted for elevation.

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 Flag Pond

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

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