Mercer County, OH Mines
Mines in Mercer County, OH
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| John W. Karch Quarry | Private | Limestone | ||
| John W. Karch Quarry | John W. Karch Stone | Private | Stone, Crushed | |
| Rockford Stone Quarry | Private | Limestone | ||
| Rockford Stone Quarry | Rockford Stone Co. | Private | Stone, Crushed |