Mynydd Llangatwg or Llangattock Mountain is a hill in the Brecon Beacons National Park mostly in the county of Powys, south Wales but also extending into both Monmouthshire and Blaenau Gwent. It is na
Looking south east across Mynydd Llangatwg from Ty Aderyn with periglacial boulder stream in foreground. (November 2005)