Feldspar, Beryllium, Mica Mines
10Total Sites
1Active
Top States
| State | Sites |
|---|---|
| South Dakota | 8 |
| Colorado | 2 |
Notable Sites
| Mine | State | County | Status |
|---|---|---|---|
| Hyatt Ranch Mine | Colorado | Larimer | Producer |
| Burroughs Feldspar Mine | Colorado | Jefferson | Past Producer |
| King Mica Mine | South Dakota | Pennington | Past Producer |
| Monkey Lode | South Dakota | Pennington | Past Producer |
| Mountain Beryl Claim | South Dakota | Custer | Past Producer |
| Mountain Rose Mine | South Dakota | Custer | Past Producer |
| New England Prospect | South Dakota | Pennington | Occurrence |
| Red Spar Mine | South Dakota | Custer | Past Producer |
| Soda Spar Mine | South Dakota | Custer | Past Producer |
| Warren Draw Mine | South Dakota | Custer | Past Producer |