|Location||Snowdonia, North Wales|
|Primary outflows||Afon Llugwy|
|Basin countries||United Kingdom|
|Surface area||40 acres (16.19 ha)|
It lies at a height of about 1,786 feet (544 m) and covers an area of some 40 acres (16.19 ha). It has a maximum depth of 146 ft (45 m).
Since the mid 1970s the lake has additionally acted as a reservoir for Bangor and eastern Anglesey, which necessitated the laying of an 11-mile pipeline to the water treatment works at Mynydd Llandegai.
- The Lakes of Eryri, by Geraint Roberts, Gwasg Carreg Gwalch, 1985
- Cyfrinachau Llynnoedd Eryri, by Geraint Thomas, y Lolfa, 2011