Gellilydan

The Catholic community in the area resulted from Irish workers on the construction of the Llyn Trawsfynydd reservoir in the 1920s, which supplied the Maentwrog hydroelectric power station.

The church is a Grade II listed building and was formerly a tannery built in late eighteenth century.

Saint John Roberts (1577–1610) was one of the Forty Martyrs of England and Wales and was born within the current parish.

[5] Ysgol Edmwnd Prys provides Welsh-medium primary education to the village and the surrounding area.

71.4 per cent of statutory school age pupils speak Welsh at home.