Llyn Trawsfynydd

Llyn Trawsfynydd is a large artificial reservoir situated near the village of Trawsfynydd in Gwynedd, North Wales. With a total surface area of 4.8 km² the reservoir is slightly more extensive than Wales's largest natural lake, Bala Lake at 4.5 km².
  • Location: Gwynedd, North Wales
  • Built: 1928
  • Primary outflows: Afon Prysor
  • Max. length: 4.39 km (2.73 mi)
  • Max. width: 2.3 km (1.4 mi)
  • Surface area: 4.8 km² (1.9 sq mi)
  • Average depth: 4 m (13 ft)
Data from: en.wikipedia.org