Pen y Boncyn Trefeilw

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Pen y Boncyn Trefeilw
Pen y Boncyn Trefeilw from Foel y Geifr
Highest point
Elevation646 m (2,119 ft)
Prominence57 m (187 ft)
ListingHewitt, Nuttall
Language of nameWelsh
LocationGwynedd, Wales
Parent rangeBerwyn range
Topo mapOS Landranger 125
Listed summits of Pen y Boncyn Trefeilw
Name Grid ref Height Status
Stac Rhos SJ085335 630 metres (2,067 ft) sub Hewitt, Nuttall

Pen y Boncyn Trefeilw is a subsidiary summit of Cyrniau Nod in north east Wales. It forms a part of the Berwyn range 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.[1]


  1. ^ Nuttall, John & Anne (1999). The Mountains of England & Wales - Volume 1: Wales (2nd edition ed.). Milnthorpe, Cumbria: Cicerone. ISBN 1-85284-304-7.

External links[edit]

Coordinates: 52°52′48″N 3°22′55″W / 52.88011°N 3.38191°W / 52.88011; -3.38191