Feldspar, Beryllium Mines
13Total Sites
1Active
Top States
| State | Sites |
|---|---|
| South Dakota | 12 |
| Colorado | 1 |
Notable Sites
| Mine | State | County | Status |
|---|---|---|---|
| Number Nine Lode | South Dakota | Custer | Producer |
| Bet Lode | South Dakota | Custer | Past Producer |
| Big Shot | South Dakota | Pennington | Occurrence |
| Big Smoke Group | South Dakota | Pennington | Past Producer |
| Blue Bird Lode | South Dakota | Custer | Past Producer |
| Cat Lode | South Dakota | Custer | Past Producer |
| Chipmunk No. 25 Claim | South Dakota | Custer | Past Producer |
| Cressmans Gulch Prospect | Colorado | Jefferson | Past Producer |
| Ferguson Lode Claim | South Dakota | Pennington | Past Producer |
| Maderposson | South Dakota | Pennington | Occurrence |
| Pringle Mine | South Dakota | Custer | Past Producer |
| Tom Carroll Claim | South Dakota | Custer | Past Producer |
| White Elephant Mine | South Dakota | Custer | Past Producer |