Key facts
Pen Y Boncyn Trefeilw (646m) is in Wales, in the Berwyn range.
- Region
- Wales
- Mountain range
- Berwyn range
- Prominence
- 57m
- Nearest higher peak
- Foel Cedig · 666m, 1.9km
- Nearest hut
- Arenig Fawr · 15km
- Lakes nearby
- Lake Vyrnwy (4.3km), Llyn y Mynydd (5.3km), Llandderfel Quarry (6.7km)
- Parking
- 1.9km
- Nearest village
- Llangywer · 6.9km
