Carneddau, Capel Curig, Conwy County, Wales,
Pen yr Helgi Du (833m) is a mountain in Snowdonia, Conwy County, North Wales. Pen yr Helgi Du is located close to and south east of Carnedd Llywelyn; west of Pen Llithrig-y-wrach; and east of Carnedd Dafydd, in the Carneddau range of mountains. Pen yr Helgi Du is accessible from the A5 road between Capel Curig and Bethesda.....