Union County, OH Mines
Mines in Union County, OH
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Rockhold Quarry | L. G. Rockhold And Sons | Private | Stone, Crushed | |
| Union Aggregates Company | Union Aggregates Co. | Private | Stone, Crushed | |
| Union Quarry | Private | Stone, Crushed |