Madison County, IA Clays Mines
Clays Mines in Madison County, IA
| Mine |
Owner |
Land Status |
Work Type |
Minerals |
| Clark Brickyard |
|
Unknown |
|
Clays |
| Earlham Quarry |
The Monarch Cement Co |
Private |
|
Clays |
| Unknown |
Mardis, T. F. |
Unknown |
|
Clays |
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