Llyn Alaw
Encyclopedia
Llyn Alaw is a man-made reservoir
on Anglesey
, North
Wales
. It is used to supply drinking water to the northern half of the island and does so at a rate of 35 million litres a day. It was created in 1966 on existing marshland.
The catchment is largely agricultural
and few notable rivers feed into the lake. The storage capacity is largely generated through trapping winter rainfall and drawing down the level in the summer months. The reservoir itself is 4.3 kilometres long with a surface area of 3.6 km² making it the largest body of water on the island. It does however only ever reach a depth of 5.2 metres.
Recent developments have included the provision of nature conservation facilities and way-marked
walks around the margin.
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...
on Anglesey
Anglesey
Anglesey , also known by its Welsh name Ynys Môn , is an island and, as Isle of Anglesey, a county off the north west coast of Wales...
, North
North Wales
North Wales is the northernmost unofficial region of Wales. It is bordered to the south by the counties of Ceredigion and Powys in Mid Wales and to the east by the counties of Shropshire in the West Midlands and Cheshire in North West England...
Wales
Wales
Wales is a country that is part of the United Kingdom and the island of Great Britain, bordered by England to its east and the Atlantic Ocean and Irish Sea to its west. It has a population of three million, and a total area of 20,779 km²...
. It is used to supply drinking water to the northern half of the island and does so at a rate of 35 million litres a day. It was created in 1966 on existing marshland.
The catchment is largely agricultural
Agriculture
Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...
and few notable rivers feed into the lake. The storage capacity is largely generated through trapping winter rainfall and drawing down the level in the summer months. The reservoir itself is 4.3 kilometres long with a surface area of 3.6 km² making it the largest body of water on the island. It does however only ever reach a depth of 5.2 metres.
Recent developments have included the provision of nature conservation facilities and way-marked
Waymarking
Waymarking is an activity where people locate and log interesting locations around the world, usually with a GPS receiver and a digital camera. Waymarking differs from geocaching in that there is no physical container to locate at the given coordinates. Waymarking identifies points of interest for...
walks around the margin.