Cwm Dewi is a Site of Special Scientific Interest (or SSSI) in Pembrokeshire, South Wales. It has been designated as a Site of Special Scientific Interest since January 2010 in an attempt to protect its important geological elements.[1] The site has an area of 22.02 hectares (54.4 acres) and is managed by Natural Resources Wales.

Cwm Dewi
Site of Special Scientific Interest
The Cwm in January 2005
Cwm Dewi is located in Wales
Cwm Dewi
Location within Wales
LocationPembrokeshire
Grid referenceSN0074739845
Coordinates52°01′16″N 4°54′18″W / 52.021°N 4.905°W / 52.021; -4.905
InterestGeological
Area22.02 hectares (54.4 acres)
Notification2010

Type

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This site is designated due to its geological qualities: a spectacular landform created during the Ice Age.

Cwm Dewi SSSI is one of the most important sites in Britain where Quaternary landforms and deposits can be studied. The valley which separates Dinas Island from the adjacent plateau was formed by the meltwater produced when an ice sheet which covered north Pembrokeshire thawed.

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References

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