Lake Vyrnwy
Lake Vyrnwy (Welsh: Llyn Efyrnwy, pronounced [ɛˈvərnʊɨ] or Llyn Llanwddyn) is a reservoir in Powys, Wales, built in the 1880s for Liverpool Corporation Waterworks to supply Liverpool with fresh water. It flooded the head of the Vyrnwy (Welsh: Afon Efyrnwy) valley and submerged the village of Llanwddyn.
| Lake Vyrnwy | |
|---|---|
| Welsh: Llyn Efyrnwy | |
View overlooking Lake Vyrnwy showing the full extent of the lake | |
Lake Vyrnwy | |
| Location | Wales |
| Coordinates | 52.78°N 3.50°W |
| Lake type | Reservoir |
| Primary inflows | River Vyrnwy and other small streams |
| Primary outflows | River Vyrnwy |
| Managing agency | Hafren Dyfrdwy subsidiary of Severn Trent |
| Built | 1881–88 |
| Max. length | 7.64 kilometres (4.75 mi) |
| Max. width | 0.80 kilometres (0.5 mi) |
| Surface area | 4.54 square kilometres (1,121 acres) |
| Max. depth | 26 metres (84 ft) |
| Water volume | 59.7 gigalitres (13.125×109 imp gal) |
| Shore length1 | 19 kilometres (12 mi) |
| 1 Shore length is not a well-defined measure. | |
The Lake Vyrnwy Nature Reserve and Estate that surrounds the lake is jointly managed by the Royal Society for the Protection of Birds (RSPB) and Hafren Dyfrdwy and is a popular destination for ornithologists, cyclists and hikers. The reserve is designated as a national nature reserve, a Site of Special Scientific Interest, a Special Protection Area, and a Special Area of Conservation.
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