Vermiculite Mines in Montana
17Total Sites
4Active
Vermiculite Mining in Montana
Montana has 17 vermiculite-related mine and mineral deposit locations recorded in federal databases. Of these, 4 are currently active operations. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| Ravalli County | 6 |
| Lincoln County | 5 |
| Madison County | 4 |
| Gallatin County | 2 |
Vermiculite Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Constellation Deposit | Madison | Surface | Producer |
| Gilliam Vermiculite Deposit | Madison | Producer | |
| Vermiculite Mountain Mine | Lincoln | Producer | |
| Vermiculite Mountain Mine | Lincoln | Surface | Producer |
| Ellade | Ravalli | Underground | Prospect |
| Gilliam Mine | Madison | Underground | Unknown |
| Gird's Creek Vermiculite | Ravalli | Occurrence | |
| Hamilton Vermiculite Deposit | Ravalli | Occurrence | |
| Last Chance Group | Lincoln | Occurrence | |
| Mica Creek Deposit | Gallatin | Surface | Occurrence |
| Mica. Creek Deposit | Gallatin | Occurrence | |
| Pony Vermiculite | Madison | Occurrence | |
| Skalkaho Vermiculite Deposit | Ravalli | Surface | Prospect |
| Universal Zonolite Corp. Property | Lincoln | Surface | Past Producer |
| Unnamed Location | Ravalli | Occurrence | |
| Vermiculite | Ravalli | Occurrence | |
| Zonolite Mine | Lincoln | Surface | Past Producer |