Bently Tin Mine: Cassiterite & Tantalite Rockhounding in Coosa County, Alabama

Plan your visit

Confirm rules before collecting

County

Coosa County

State

Alabama

Postcode

35136

Coordinates

32.89139, -86.24658

Coordinates are approximate. Confirm the exact ground in the RockHoundR app, where land overlays show which agency manages the area.

Land & collecting status

Confirm rules before collecting

Land status here is not confirmed. Verify with the managing agency before collecting, federal, state, and tribal rules differ.

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.

Best time to visit Bently Tin Mine

Comfortable months (45 to 90°F highs)

Conditions here are workable year-round, with typical highs from 54°F in winter to 88°F in summer.

Climate normals: NOAA 1991-2020 monthlies, ROCKFORD 3 ESE station (4 mi away).

Geology at Bently Tin Mine

This spot sits on Wedowee Group; Wedowee Group undifferentiated, mapped as mica schist and phyllite that formed roughly 4600 to 250 million years ago. Metamorphic belts like this often host pegmatite dikes, the coarse-crystal bodies that typically carry beryl, tourmaline, and sheet mica.

Mapped unit

Wedowee Group; Wedowee Group undifferentiated

Age

4600–250 Ma (Precambrian to Paleozoic)

Rock types

mica schist and phyllite

Elevation

740 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.

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.

• Geological Survey of Alabama
• National Forests in Alabama
• Alabama State Parks rules
• Community submissions reviewed against published agency rules