Pen Cerrig-calch Pen Cerrig-calch Pen Cerrig-calch is a subsidiary summit of Waun Fach in the Black Mountains in the Brecon Beacons National Park in southern Powys, Wales. Its summit, at a height of 701m (2,300 ft), is marked by a trig point. The peak sits high above the River Usk valley as it narrows above the small town of Crickhowell.The views from here are wide-ranging and extend as far as the Beacons themselves to the west. A ridge runs off to the northwest and the shoulder of Pen Gloch-y-pibwr then turns north to the secondary top of Pen Allt-mawr whose peak at
Pen-y-ghent language, exactly as in today's Welsh, "Pen" meant 'top' or 'head', and "y" is most likely the definite article ("the"), exactly as in Modern Welsh "y". These elements are common in placenames throughout the island, and especially in Wales (compare Penyberth 'end of the hedge/copse', or Penyffordd 'head of the road/way', etc.). The element "ghent" is more obscure, however: it could be taken to be 'edge' or 'border'. The name "Pen-y-ghent" could therefore mean 'Hill on the border' (compare Kent). Alternatively, "ghent" could mean 'wind' or 'winds' – from the closest Welsh transliteration, "gwynt" ('wind'). Thus it might mean simply