Aerial view of Llyn Brenig

Llyn Brenig is a reservoir located in North Wales, in the heart of the Denbigh moors, on the border between the counties of Conwy and Denbighshire. It is used to manage the flow in the River Dee, Wales as part of the River Dee regulation systemwhich is designed to protect the water supply for North West England and North East Wales, particularly Liverpool and the surrounding area. Image File history File links Llynbrenig. ... Image File history File links Llynbrenig. ... Generally, a reservoir is something that can hold matter or energy. ... North Wales is the northernmost region of Wales, bordered to the south by Mid Wales. ... Denbigh (Welsh: Dinbych) is the county town of the traditional county of Denbighshire, Wales. ... Conwy (formerly anglicised as Conway) is a town in Conwy county borough, North Wales, UK, which faces the resort of Llandudno across the Conwy Estuary. ... Denbighshire (Welsh: Sir Ddinbych) is a county in North Wales. ... Old Dee Bridge, River Dee, Chester, England (2002) The River Dee (Welsh: Afon Dyfrdwy) is a 70 mile (110 km) long river, which rises in Snowdonia, Wales and discharges to the sea a few miles west of Liverpool. ... River Dee Regulation Scheme The water demands of North West England including Liverpool and The Wirral far exceed the locally available sources of clean water. ... North West England is one of the regions of England. ... National motto: Cymru am byth (Welsh: Wales for ever) Waless location within the UK Official languages English, Welsh Capital Cardiff Largest city Cardiff First Minister Rhodri Morgan Area  - Total Ranked 3rd UK 20,779 km² Population  - Total (2001)  - Density Ranked 3rd UK 2,903,085 140/km² Ethnicity: 97. ... Liverpool is a city and metropolitan borough in Northwest England, on the north side of the Mersey estuary. ... Merseyside is a metropolitan county, located in the North West of England. ...

Construction began in 1973 and was completed in 1976. It has a capacity of 60 million m³ and was first filled in 1979. Whilst it is not the largest lake in Wales in terms of volume (that title belongs to Bala Lake/ Llyn Tegid), it is the largest in terms of area covered, around 920 acres. It has a perimeter of some 14 miles. 1973 was a common year starting on Monday. ... 1976 (MCMLXXVI) is a leap year starting on Thursday (link will take you to calendar). ... The cubic metre (symbol m³) is the SI derived unit of volume. ... This page refers to the year 1979. ... Bala Lake (Llyn Tegid in Welsh) was the largest natural body of water in Wales prior to the level being raised to help support the flow of the Llangollen canal. ... This article is about the unit of measure known as the acre. ...

The catchment of the reservoir is very significantly over-reservoired. This means that the reservoir cannot fill from its own catchment within one annual hydrological cycle. When the reservoir level is drawn down it can take several years for it to completely re-fill again. Llyn Brenig is therefore only used during drought conditions when the capacity of Llyn Celyn and Llyn Tegid are no longer predicted to be capable of maintaing the flow in the river Dee. Llyn Celyn is a large reservoir constructed in 1961 in the valley of the River Tryweryn in North Wales. ...

Archaeology

During construction of the lake, a number of Bronze Age artifacts were found, as was a camp used by Mesolithic hunter/gatherers. This has been dated by radiocarbon analysis of the charcoal from their fires to around 5700 BC. There are a number of archaeoligical trails around Llyn Brenig; the relics visible include a ring cairn (a bronze age burial mound), and several barrows. The Bronze Age is a period in a civilizations development when the most advanced metalworking has developed the techniques of smelting copper from natural outcroppings and alloys it to cast bronze. ... The Mesolithic (Greek mesos=middle and lithos=stone or the Middle Stone Age) is the period between the Paleolithic and Neolithic periods. ... Carbon-14 is the radioactive isotope of carbon discovered February 27, 1940, by Martin Kamen and Sam Ruben. ... Charcoal is the blackish residue consisting of impure carbon obtained by removing water and other volatile constituents of animal and vegetable substances. ... (7th millennium BC – 6th millennium BC – 5th millennium BC – other millennia) // Events c. ... Importance and applicability Most of human history is not described by any written records. ... A cairn to mark the way along a glacier A cairn is a manmade pile of stones. ... Alternate meanings of barrow: see Barrow_in_Furness for the town of Barrow in Cumbria, England; also Barrow, Alaska in the U.S.; also River Barrow in Ireland. ... Barrow may refer to: Barrow 1 n 1 A flat rectangular tray or cart with handles at each end. ...

A visitor centre to the south of the lake displays a lot of archaeological information about the area.

Watersports

A number of watersports take place on the lake, including sailing, windsurfing, rafting and canoeing. The Trust enforces a 10 mph limit on the lake, restricting the use of jet-skis and power boats. Water sport most commonly refers to a sport which is played in the water. ... Wooden sailing boat Sailing is the skillful art of controlling the motion of a sailing ship or smaller boat, across a body of water using wind as the source of power. ... Windsurfing in Essex, England Windsurfing (also called boardsailing) is a sport involving travel over water on a small 2-4. ... Rafting in Brazil. ... Canoeing is the recreational or sporting activity of paddling a canoe or kayak. ... Miles per hour is a unit of speed, expressing the number of international miles covered per hour. ... Jet-ski is the brand name of Kawasaki Heavy Industries personal water craft. ...

Access

Access is via the B4501, turning north off the A5 at Cerrigydrudion. Marble Arch - the start of the A5 road The A5 is a major road in the United Kingdom. ...

External links

• Clwyd-Powys Archaeological Trust
• Llyn Brenig Sailing Club