Concept

Llyn Conwy

Résumé
Llyn Conwy (SH780462) is a lake in the county of Conwy in central north Wales. It is the source of the River Conwy which, on flowing south out of the lake, swings round to then generally flow in a northerly direction for a distance of some to its discharge in Conwy Bay. Llyn Conwy lies at a height of about 1,488 ft, with a maximum depth of 16 feet, and is by far the biggest lake of the Migneint moors, an extensive area of blanket mire with high rainfall - about 260 cm p.a. There is a view of Arenig Fawr. Geology This is an area of Ordovician rocks, lending its name to the "Llyn Conwy Formation", which is identified by its yellowish rhyolitic tuffs. This Formation also reappears in Afon Tryweryn to the south-east, where the hard rock was utilized in the construction of Llyn Celyn dam. Water quality and soil Llyn Conwy is owned by the National Trust and, whilst a natural lake, is managed as a reservoir by Welsh Water. It supplies some of the water needs of
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