Pen y Boncyn Trefeilw is a subsidiary summit of
Cyrniau Nod in north east
Wales
Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...
. It forms a part of the
Berwyn range
The Berwyn range ( Welsh: ''Y Berwyn'' or ''Mynydd y Berwyn'') is an isolated and sparsely populated area of moorland in the northeast of Wales, roughly bounded by Llangollen in the northeast, Corwen in the northwest, Bala in the southwest, a ...
called the Hirnantau. It has two tops:
Stac Rhos and Pen y Cerrig Duon. Pen y Cerrig Duon is now listed as a deleted Nuttall due to re-surveying.
The views from the summit are extensive, if unremarkable due to the featureless, flat moorland surroundings. The summit is marked by a small cairn, is which located only a few metres from a track road that continues on to the pass between
Cyrniau Nod and
Y Groes Fagl.
[Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. .]
References
Llangywer
Mountains and hills of Gwynedd
Mountains and hills of Snowdonia
Hewitts of Wales
Nuttalls
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