Pen yr Ole Wen

Pen yr Ole Wen stands in Snowdonia, the seventh highest mountain in Wales and the most southerly of the Carneddau range. The peak rises north of Idwal Cottage youth hostel beside the A5 road, where its sharp outline looks like a pyramid. Walkers can start from the hostel along a steep path that climbs 675 metres in about 1.5 kilometres up the south-west corner. A gentler route begins at Tal-y-Llyn Ogwen, follows the stream past Ffynnon Lloer lake, then turns left onto the ridge. The mountain’s name once puzzled people, translated for years as ‘Head of the White Light’. In 2004 Professor Hywel Wyn Owen at Bangor University showed that ‘Ole’ comes from the Welsh word ‘Goleddf’, meaning slope or hillside, giving the correct reading ‘Head of the White Slope’. Pen yr Ole Wen is often climbed as part of a longer journey across the Carneddau. Its summit shares the same height as Scafell Pike, England’s highest point. On the summit visitors find wide views across the Carneddau and Snowdonia. The average temperature at the top stays around 5 °C, so walkers need layers even in summer. The ridge offers rocky scrambles and gentle slopes, while the stream route from Tal-y-Llyn Ogwen passes through quiet upland scenery. The mountain’s sharp shape and open slopes make it a striking landmark on the skyline.