Llwyn-on is the largest and southernmost of the three reservoirs in the Taf Fawr valley in South Wales

---

The reservoir is owned by Welsh Water and is located in the Brecon Beacons National Park. The eastern half is in the Merthyr Tydfil unitary authority area and the western half is in the Rhondda Cynon Taf unitary authority area. The reservoir is within the historic county boundaries of Breconshire. The dam is adjacent to Llwyn-On village. On the River Taf Fawr, it is also fed by the streams Nant Gwinau, Nant Car and Garwnant.

---

Size: 4628px × 6425px
Location: Llwyn-on, Wales
Photo credit: © Philip Chapman / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: beacons, brecon, breconshire, car, cynon, cyrmru, dam, dwr, fawr, garwnant, gwinau, llwyn-, llwynn, merthyr, nant, national, onn, park, reservoir, rhondda, sparkle, taf, valley, wales, water, waterfall, welsh