| Name | Location | County | Country | Power source | Type | Function | River |
| Bodcoll Mill, Ystumtuen | Ystumtuen, Blaenrheidol | Cardiganshire | United Kingdom | Water | Watermill | Woollen mill | Mynach |
| Woollen Factory, Cefn-ddwysarn, Bala | Bala, Llandderfel | Merionethshire | United Kingdom | Water | Watermill | Woollen mill | Mynach |