Pen y Fan same noun "ban", in its plural form "bannau", is found in the Welsh name for the Brecon Beacons: "Bannau Brycheiniog". There is no one standard translation of "Pen y Fan", but 'the mountain's peak' or 'the beacon's summit' are both possible translations. Pen y Fan is formed from various units of the Old Red Sandstone which were laid down during the Devonian period. The lower slopes of the mountain are formed from the sandstones and mudstones of the Senni Formation whilst the upper slopes are formed from those of the Brownstones Formation. The very summit, like that of neighbouring Corn
Pen-y-fai, Bridgend Pen-y-fai, Bridgend Pen-y-fai is a village in the county borough of Bridgend Wales falling within the Bridgend electoral ward area. The ward population taken at the 2011 census was 2,447. It has a population of about 2,000, one village shop, a chapel and All Saints parish church (Church in Wales). It also has a popular village pub, The Pheasant, which was once an old farmhouse. Pen-y-fai was once a village for employees of the Llewellyn estate. There is a school called "Pen-y-fai CIW primary school" hence its location, that takes children from age 3 through to age 11. The school