An engraving from a Henry Gastineau drawing of the dramatic rock pinnacle of Craig-y-Dinas or Dinas Rock near Ystradfellte, close to the border of Breconshire and Glamorganshire. There are a number of impressive waterfalls, caves and limestone rock formations in the district. Craig-y-Ddinas is one of the improbably large number of locations linked to the story of King Arthur.