| Llyn Celyn | |
|---|---|
 | |
  Llyn Celyn | |
| Location | Wales |
| Coordinates | 52°57′0″N 3°41′38″W / 52.95000°N 3.69389°W |
| Type | Reservoir |
| Basin countries | United Kingdom |
| Max. length | 2.5 mi (4.0 km) |
| Surface area | 320 hectares (790 acres) |
| Max. depth | 140 ft (43 m) |
Llyn Celyn (Welsh pronunciation: [ɬɨ̞n ˈkɛlɨ̞n]) is a reservoir constructed between 1960 and 1965 including the highly controversial Tryweryn flooding in the valley of the River Tryweryn in Gwynedd, Wales. This included the forcible removal of the Capel Celyn village residents despite protest and opposition of Welsh MPs.
With an area of 320 hectares (1.2 sq mi),[1] it measures roughly 2.5 miles (4.0 km) long by 1 mile (1.6 km) wide, and has a maximum depth of 140 ft (43 m). It has the capacity to hold 71,200,000 cubic metres (93,100,000 cu yd) of water.[2]
It was originally to be named Llyn Tryweryn Mawr (meaning "great Tryweryn lake"), but in September 1964 Liverpool Corporation agreed to the name change following a letter from the Tryweryn Defence Committee.[3]
- ^ "Llyn Celyn, Tryweryn Valley". coflein. RCAHMW. Retrieved 8 October 2024.
- ^ National Library of Wales page, "Celyn lake held a capacity of 71,200 mega litres of water, the biggest dam in Wales" Archived 27 October 2005 at the Wayback Machine
- ^ Capel Celyn, Ten Years of Destruction: 1955–1965, by Einion Thomas, published by Cyhoeddiadau Barddas & Gwynedd Council, 2007, ISBN 978-1-900437-92-9