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Trawsfynydd Nuclear Power Plant.jpg
The lake with the nuclear power station
Grid reference: SH707356
Location: 52°54’8"N, 3°55’26"W
Population: 949  (2001)
Post town: Blaenau Ffestiniog
Postcode: LL41
Dialling code: 01766
Local Government
Council: Gwynedd
Dwyfor Meirionnydd

Trawsfynydd is a village and parish in Merionethshire, adjacent to the A470 road north of Bronaber and Dolgellau near Blaenau Ffestiniog. Its name is from the Welsh language for "across [the] mountain".

The total parish area is 31,700 acres with a population of just under 1,000 – the area is sparsely populated with each acre inhabited by an average 0.03 persons. There is one grocery shop, one public house, a newsagent, a chemist, garage, petrol service station, and a branch of a large agricultural merchants.

General information

During the Second World War, the War Office used a site near Trawsfynydd for training exercises.

Trawsfynydd used to be served by a section of the Great Western Railway branch line, which ran from Bala to Blaenau Ffestiniog. To the north of the station, the army built its own station to serve the large camp nearby.(camp detail) Today Trawsfynydd railway station is a private home. (pictures). The line closed to all traffic in 1961, and the trackbed at the Bala end was subsequently severed by the Llyn Celyn reservoir, but the section between Blaenau and Trawsfynydd Power Station reopened in 1964 for nuclear flask traffic. Access from the Bala end being no longer possible, a new section of track – the so-called "Trawsfynydd Link" – was constructed to link the previously separate ex-GWR and ex-LNWR stations in Blaenau Ffestiniog. It finally closed in 1998, although the track remains in situ.

Llyn Trawsfynydd, and power stations

The village is close to Llyn Trawsfynydd, a large man-made reservoir, which was originally built between 1924 and 1928 to supply water for Maentwrog hydro-electric power station.

The original flooding of the area in the 1920s to create the lake involved the drowning of some two dozen properties, some of historical significance, but there was little objection at the time. The new power station was regarded as a good thing, and indeed on its completion was capable of supplying the whole of North Wales' electricity needs.
Llyn Trawsfynedd.
Llyn Trawsfynydd footbridge
However, there was certain objection to the loss of rights of way across the former land, necessitating long detours round the new lake. In response to this, a small road was built along its western shore, and a footbridge (still standing) across the narrowest part of the lake.

The lake was subsequently also supplied cooling water to the twin reactor Trawsfynydd nuclear power station used for the commercial generation of electricity for the UK National Grid.

Four dams were built to create the lake, one of these being subsequently rebuilt after construction of the nuclear power plant. Whereas previously the Maentwrog power station had access to all of the water in the lake, the needs of the nuclear plant dictated that from then on, the hydro plant should only use the top five feet of water.

Hedd Wyn

Trawsfynydd was the home of the Welsh bard Hedd Wyn, who died on the battlefields of Flanders during World War I, just before he was to receive the winning prize at the National Eisteddfod. Y Gadair Ddu (The Black Chair) can now be found at his home farm Yr Ysgwrn. He is buried in Flanders.

Church of St Madryn

Trawsfynydd Parish Church
Trawsfynydd Parish Church

The church is dedicated to St Madryn, was burned down in 1978 and re-opened in 1981 (it remains the only listed building in the village).

The parish of Trawsfynydd was home to Saint John Roberts, one of the Forty Martyrs of England and Wales, canonised in 1970: he was baptised in the church. Descended from Welsh saints and princes, he gained great respect helping the plague sufferers in London, but was found guilty of high treason and hanged, drawn and quartered on 10 December 1610.

In popular culture

The film First Knight had scenes filmed around Lake Trawsfynydd.[1]

The film Hedd Wyn was filmed in and around Trawsfynydd.

Notable people

  • Morgan Lloyd, Liberal politician and MP, was born in the parish of Trawsfynydd.
  • Dewi Prysor, novelist and poet, was raised in the parish of Trawsfynydd.
  • Iwan Roberts, actor, lyricist and singer, was raised in the village.
  • Saint John Roberts, Benedictine monk and missionary priest, was born in the parish of Trawsfynydd.
  • John Rowlands, novelist and academic, was born in the parish of Trawsfynydd.
  • Hedd Wyn, poet, was born in the village.


Outside links

("Wikimedia Commons" has material
about Trawsfynydd)