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 |