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), 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.
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.