Manganese past producer · Unicoi County, Tennessee
discovered 1942
Drawn as an open-pit mine, dug down in benches from the surface. The ore color stands for manganese. Federal records note the kind of operation and its status, not its depth or layout, so this is a typical example rather than a survey of this site.
| State | Tennessee |
| County | Unicoi |
| Coordinates | 36.23679, -82.30625 |
| Tertiary | Manganese |
| Status | Past Producer |
| Type | Surface |
| Discovery Year | 1942 |
| Data Source | USGS MRDS |
| Source ID | 10129487 |
| Site | Distance | Commodity | Status |
|---|---|---|---|
| Unicoi Quarry | 0.3 mi | Crushed, Broken Limestone NEC | Intermittent |
| Sam Brummett Prospect | 0.8 mi | Past Producer | |
| Gaddy Prospect | 1.2 mi | Past Producer | |
| Sam Brummett Mine | 1.2 mi | Past Producer | |
| Head Prospect | 1.3 mi | Prospect | |
| Sam Brummett Mine | 1.5 mi | Manganese | Past Producer |
| John and Susan Brummett Mine | 1.6 mi | Past Producer | |
| Sam McCracken Spring | 1.6 mi | Mercury | Occurrence |
| Marbleton Quarry & Mill | 1.6 mi | Stone, Crushed/Broken | Plant |
| Marbleton Holston Quarry | 1.6 mi | Stone, Crushed/Broken | Producer |
| Holston Land Co. - Marbleton Quarry | 1.6 mi | Stone, Crushed/Broken, Limestone, General | Producer |
| Holston Land Co. - Marbleton Quarry | 1.6 mi | Stone, Crushed/Broken | Producer |
This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.