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Gellilydan
Gellilydan (Welsh pronunciation) is a village in the Welsh county of Gwynedd, in Maentwrog community. It lies 4 miles (6 km) south-south-east of Blaenau Ffestiniog and 1.2 miles (2 km) north of Llyn Trawsfynydd and the disused Trawsfynydd nuclear power station.
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