What is "cribarth"

Cribarth or Sleeping Giant is a hill in the Brecon Beacons National Park (Parc Cenedlaethol Bannau Brycheiniog) in Powys, southern Wales. The summit lies on the broken ridge at an elevation of 428m at OS grid reference SN 831143. To its west is a 426m high rounded top at SN 829144 which lies just to the northwest of a mile long ridge which forms the main bulk of the hill. The ridge attains a height of 423m high at its southwest end and this spot is marked by a trig point. Both of these latter high points are adorned by Bronze Age burial cairns.