| Name | Location | County | Country | Power source | Type | Function | River |
| Bryntail Lead Mine, Llanidloes Without | Llanidloes Without | Montgomeryshire | United Kingdom | Water | Watermill | Lead crushing mill, Mine mill/wheel | Clywedog |
| Crushing mill, Dyfngwm Lead Mine, Trefeglwys | Trefeglwys, Llanbrynmair | Montgomeryshire | United Kingdom | Water | Watermill | Lead crushing mill, Mine mill/wheel | Clywedog |
| Felin Lifio, Bontuchel | Bontuchel, Cyffylliog | Denbighshire | United Kingdom | Water | Watermill | Saw mill | Clywedog |
| Nant Mill, Coedpoeth | Coedpoeth | Denbighshire | United Kingdom | Water | Watermill | Corn mill | Clywedog |
| Pandy Clywedog, Dolgellau | Dolgellau | Merionethshire | United Kingdom | Water | Watermill | Saw mill, Woollen mill | Clywedog |
| Pandy Nant-yr-Ehedydd, Cwm Cewydd | Cwm Cewydd, Mawddwy | Merionethshire | United Kingdom | Water | Watermill | Fulling mill | Clywedog |
| Pulseton Mill, Wrexham | Wrexham | Denbighshire | United Kingdom | Electricity, Steam, Water | Roller flour mill, Watermill | Corn mill | Clywedog |
| Torrent Walk Mill, Dolgellau | Dolgellau | Merionethshire | United Kingdom | Water | Watermill | Fulling mill | Clywedog |