Waterloo, IA Mines
Mines in Waterloo, Iowa
| Mine | Owner | Land Status | Work Type | Minerals |
|---|---|---|---|---|
| Stead Bros. and Guenther Clay Pit | Stead Brothers And Guenther | Unknown | Clays | |
| Unknown | Unknown | Sand and Gravel | ||
| Unknown | Waterloo Dredging | Unknown | Sand and Gravel | |
| Unknown | Unknown | Sand and Gravel | ||
| Waterloo Sand Plant | Martin Marietta Aggregates Co. | Unknown | Sand and Gravel |