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-garn, Ceredigion Pen-y-garn, Ceredigion Pen-y-garn is a small village in the Tirymynach district of Ceredigion, Wales, approximately 4 miles (6 km) north-east of Aberystwyth. Along with the hamlet of Rhydypennau, Pen-y-garn is now often considered to be part of the neighbouring larger village of Bow Street. All three places stretch in a long narrow strip along the main Aberystwyth to Machynlleth road (A487). As well as the houses on the main road from Cross Street (Y Lon Groes) up to Ysgol Rhydypennau, Pen-y-garn also includes the housing estates of Maes Ceiro, Bryn Meillion, Maes y Garn and Cae'r Odyn. Pen-y-garn ("head of