Cook County, IL Silver Mines
Silver Mines in Cook County, IL
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| (Facility) Simmons Precious Metals Refinery | Simmons Refining Co. | Private | Silver |
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| (Facility) Simmons Precious Metals Refinery | Simmons Refining Co. | Private | Silver |