Cors Goch National Nature Reserve



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The Cors Goch NNR lies in the bed of an ancient glacial lake which filled with peat as plant life thrived and died over the past 10,000 years. In addition to the rarer lowland fen habitat, there are also areas of open water, heath and grassland. The swamp supports plants such as great pond sedge, bottle brush sedge and common reed, while the lime-rich fen is characterised by species such as black bog rush and blunt-flowered rush. On the drier heathland and grassland areas, flowers among the heather and cross-leaved heath include bog asphodel, western gorse, pale heath violet and fragrant orchid. The reserve is also an important for both breeding and overwintering birds, and a particularly rich insect and invertebrate population, including dragonflies, butterflies and over 250 species of moth. This exceptional mixture of habitats is important for much of the wildlife, which also includes great crested newts and adders.

Cors Goch National Nature Reserve


About the area

Discover Isle of Anglesey

Some of the oldest rocks in Britain form the 125-mile coastline of the 85 square mile Anglesey Area of Outstanding Natural Beauty, which includes Holy Island with its busy port of Holyhead, the terminus for the Dublin ferry. The terrain inland is mainly a fertile plateau worn flat by the action of the sea, with low ridges and shallow valleys, while the sheer limestone cliffs of the east coast and on the north coast at Holyhead Mountain represent some of the most spectacular sea cliffs in Britain. 

On the steep northern and eastern cliffs, guillemots, choughs, cormorants and razorbills nest, while on the huge precipice of Gogarth Bay on lighthouse-topped South Stack (Ynys Lawd) on Holyhead Mountain, expert rock climbers now find their sport where local people formerly harvested gulls’ eggs from the vertiginous ledges.

Anglesey has a wealth of prehistoric remains. On the slopes of Holyhead Mountain, a collection of over 50 hut circles and rectangular enclosures, known as Cytiau’r Gwyddelod (Irishmen’s Huts), are thought to date from the Bronze Age and were still in use in Romano-British times, and many finds indicate the wealth of Iron Age culture on the island.

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