Cadair Berwyn
 Cadair Berwyn or Cader Berwyn is a mountain summit in north east Wales. It is the highest point in the Berwyn range and the highest significant summit in Wales outside the National Parks. Cadair Berwyn and Cyrniau Nod to the west are the two Marilyns that form the Berwyn range.The mountain lies on main ridge of the Berwyns which runs north–south. The eastern side of the ridge is characterised by steep drops and crags including Craig Berwyn north of the summit and Craig y Llyn to the south.