Beryllium, Mica, Feldspar Mines
13Total Sites
2Active
Top States
| State | Sites |
|---|---|
| South Dakota | 5 |
| New Hampshire | 4 |
| Colorado | 4 |
Notable Sites
| Mine | State | County | Status |
|---|---|---|---|
| Cressman Gulch | Colorado | Jefferson | Producer |
| Ford Mine | New Hampshire | Grafton | Producer |
| Boardman Mine | New Hampshire | Grafton | Past Producer |
| Chaney-sims Beryl Prospects | Colorado | Larimer | Occurrence |
| Dubuque And Royal Flush Claims | South Dakota | Custer | Past Producer |
| Evans Mine | New Hampshire | Grafton | Past Producer |
| Highland Mine | South Dakota | Custer | Past Producer |
| Phenacite Prospect | South Dakota | Custer | Occurrence |
| Pinnacle Prospects | New Hampshire | Grafton | Prospect |
| Robinson Gulch Prospect | Colorado | Jefferson | Occurrence |
| Roscoe Gulch Pegmatites | Colorado | Jefferson | Past Producer |
| Sitting Bull Group | South Dakota | Pennington | Past Producer |
| Victory Claim | South Dakota | Custer | Occurrence |