Seneca, IL Mines
Mines in Seneca, Illinois
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Holderman Pit | Penoyer Trucking Co. | Private | Sand and Gravel | |
| M. H. Spicer Pit | Spicer Gravel Co., Inc. | Private | Sand and Gravel | |
| Penoyer Pit | Otto Machine Co. | Private | Sand and Gravel | |
| Spicer Pit | Spicer Gravel Co. | Private | Sand and Gravel |