These are a list of 4 mines in Onamia.
| Name | Nearest Town | Type | More |
|---|---|---|---|
| Manea Pit | Onamia Mille Lacs MN | Construction Sand and Gravel | View Details > |
| Mille Lacs Quarry | Onamia Mille Lacs MN | Construction Sand and Gravel | View Details > |
| Vivant Construction | Onamia Mille Lacs MN | Construction Sand and Gravel | View Details > |
| Wash Plant | Onamia Mille Lacs MN | Construction Sand and Gravel | View Details > |