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Showing results for ( River equals Gamallt ):
Mills
See all of these mills on a map
| Title | Location | County | Country | Power source | Type | Function | River |
| Slate mill, Drum Slate Quarry, Blaenau Ffestiniog | Blaenau Ffestiniog, Ffestiniog | Merionethshire | Wales | Water | Watermill | Quarry mill/wheel, Slate mill | Gamallt |