Mason City, IL Mines
Mines in Mason City, Illinois
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| East Side Sand Co. | Manito Investment Co. | Private | Sand and Gravel | |
| Nelson Sand Pit | Nelson Sand Co. | Private | Sand and Gravel | |
| Otto Machine Company Pit | Otto Machine Co. | Private | Sand and Gravel |