Ice Age

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  • Aspects of Wicklow



More than most Irish counties, Co. Wicklow owes its topography, or landscape, to the Ice Age.


The gradual melting of the ice caps shaped the mountain lakes and glacial valleys of present-day Wicklow. These include Glenmalure and Glen O' the Downs.


Melting ice in the valleys left great heaps of rocks and debris, blocking the escape of the corrie lakes. Then, 6,000 years ago after the Ice Age was finished, Wicklow was heavily forested with trees such as hazel, oak and elm.


The county can be divided into three distinct regions: the low-lying strip along the east coast, the mountains and valleys of the centre and west, and the less mountainous south.