Grundy County, IL Silica Mines
Silica Mines in Grundy County, IL
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Grundy Area Fire Clay | Private | Silica | ||
| Northern Illinois Area Fireclay | Private | Silica |
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Grundy Area Fire Clay | Private | Silica | ||
| Northern Illinois Area Fireclay | Private | Silica |