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List of lakes of Wales: Difference between revisions


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|[[Rhyd-y-blew Pond]]

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Latest revision as of 19:22, 29 August 2023

This is a list of lakes in Wales, including those created as reservoirs. The names of most lakes in Wales start with the word “Llyn“, which is Welsh for “lake“. Except where otherwise referenced, all lakes listed here are named on the relevant Ordnance Survey map at 1:25000 scale.[1]

By area[edit]

In terms of surface area, the ten largest lakes in Wales are

All of the above, with the exception of Bala Lake, are reservoirs held back by dams. Bala Lake was the largest natural lake in Wales though its level has been artificially controlled by sluices since about 1804.[2] The largest natural lake in South Wales is Llangorse Lake (Llyn Syfaddan), which is also the second largest natural lake.

By unitary authority[edit]

This list of Welsh lakes ordered by unitary authority includes lakes with a surface area of greater than 5 acres (2.0 ha), but excludes those lakes and ponds created as part of an active industrial site (i.e., works ponds) and also excludes service reservoirs used to store drinking water as part of the water supply system. Grid references identify the approximate centre of the lake or the dam in the case of artificial reservoirs. For some lakes the unitary authority boundary passes through a lake; in these cases the lake is represented in the list for each appropriate authority. Known occurrences include Llyn Brenig, Pontsticill Reservoir, Llwyn-on Reservoir, Cantref Reservoir and Dol-y-gaer Reservoir. All occurrences are marked with an asterisk (*).[3]

Anglesey[edit]

Blaenau Gwent[edit]

Bridgend[edit]

Caerphilly[edit]

Cardiff[edit]

Carmarthenshire[edit]

Ceredigion[edit]

Conwy[edit]

Denbighshire[edit]

Flintshire[edit]

Gwynedd[edit]

Merthyr Tydfil[edit]

Monmouthshire[edit]

Neath Port Talbot[edit]

Pembrokeshire[edit]

Powys[edit]

Note: Caban Coch and Garreg-ddu reservoirs are separately named but form one contiguous area of water at normal levels. The area quoted is for the two combined. At high water levels, Pentwyn Reservoir is continuous with Pontsticill Reservoir, its dam being submerged.

Rhondda Cynon Taf[edit]

Swansea[edit]

Torfaen[edit]

Vale of Glamorgan[edit]

Wrexham[edit]

By national park[edit]

Lakes and reservoirs within each of Wales’ three national parks.

Brecon Beacons[edit]

Pembrokeshire Coast[edit]

Snowdonia[edit]

By supply to England[edit]

Many Welsh lakes supply the nation itself with water, however, some lakes and reservoirs supply England.[6][7]

The main reservoirs created for this purpose include:

Former lakes[edit]

References[edit]

  1. ^ Ordnance Survey maps. 1:25000
  2. ^ “Bala Bridge Sluice Gates”. Royal Commission on the Ancient and Historical Monuments of Wales. 24 March 2010. Retrieved 2 September 2020.
  3. ^ “Bing maps”. Bing. Retrieved 4 September 2020.
  4. ^ “Blaen-y-cwm Reservoir; Blaen Clydach Reservoir Ii (291635)”. Coflein. RCAHMW. Retrieved 29 September 2021.
  5. ^ Llyn Manod
  6. ^ “UK heatwave: How much water does Wales pump to England?”. bbc.co.uk. BBC. Retrieved 2 September 2020.
  7. ^ “Elan Valley reservoirs”. People’s Collection of Wales. Retrieved 2 September 2020.
  8. ^ “Powys Digital History Project: Elan Valley Reservoirs”. Retrieved 9 May 2012.
  9. ^ “Future capacity to supply’. What Do They Know?. What Do They Know?. Retrieved 2 September 2020.
  10. ^ “Monmouthshire X.12 (Dukestown; Llechryd; Rhymni; Tredegar), Revised: 1898 to 1899, Published: 1901”. Map images. National Library of Scotland. Retrieved 4 December 2020.
  11. ^ “Brecknockshire XLVII.3 (Bryn Mawr; Llanelli; Llangatwg), Revised: 1915, Published: 1920”. Map images. Ordnance Survey at National Library of Scotland. Retrieved 4 December 2020.
  12. ^ “Glamorgan XII.6 (Merthyr Tudful), Revised: 1915, Published: 1919”. Map images. National Library of Scotland. Retrieved 4 December 2020.
  13. ^ “Glamorgan XII (includes: Gelli Gaer; Merthyr Tudful.), Surveyed: 1868 to 1875, Published: 1885”. Map images. National Library of Scotland. Retrieved 4 December 2020.
  14. ^ “Glamorgan XI.5 (Aberdar; Penderyn; Rugos), Surveyed: 1867 to 1883, Published: 1885”. Map…



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