Frederika, IA Mines
Mines in Frederika, Iowa
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Frederika Quarry | Martin Marietta Aggregates Co. | Unknown | Stone, Crushed | |
| Harms Pit | Martin Marietta Aggregates Co. | Unknown | Sand and Gravel | |
| Unknown | Unknown | Sand and Gravel | ||
| Unknown | Bremer County | Unknown | Stone, Crushed | |
| Unknown | Unknown | Sand and Gravel |