Tair Onnen

Tair Onnen - Rhondda,Cynon,Taff
© Rob Woodall and licensed for reuse under this Licence

Tair Onnen is the 17120th highest peak in the British Isles and the 2282nd tallest in Wales

Also known as

Tair Onen (Pantylladron)


137.3 m (450 ft)


70.0 m (230 ft)

Survey method

Leica NA730/Leica GS15


Ground by trig point


  • Tump (100-199m)
  • Current County/UA Top

Nearest town

Porth, Rhondda,Cynon,Taff

OS map sheets

OS25: 151E (Cardiff & Bridgend / Caerdydd a Phen-y-bont ar Ogw)
OS50: 170 (Vale of Glamorgan, Rhondda & Porthcawl)

Notes & comments

Replaces hill 7821, which is 1.2m lower, as the County Top of the Vale of Glamorgan. Maes y Ward at ST034752 is 0.4m lower.