The mountains are comprised of 12 closely grouped peaks rising to 852 metres and are unique in Northern Ireland.
Valleys intersect at varying width and depth while the mountain slopes descend to the sea and to low-lying drumlin topography to the west and North.
Unlike the rest of county down, the Mourne Mountains are made of granite.
Formed approximately 56 Million years ago, the Mournes have gone through periods of extreme heat and cold, the most recent being a series of ice ages ending 10,000 years ago.
Glacial activity has resulted in the formation of many of today’s features in the Mourne Landscape, such as U shaped valleys, drumlins, hanging valleys and moraines.
Interactive map of the Mourne AONB area
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24 August 2010
DAY 7 : Scrub Clearance for new Tree Nursery
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20 August 2010
YOUTH RANGER PROGRAMME 2010
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17 August 2010
VOLUNTEER RANGERS AT MURLOUGH
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The mountains are comprised of 12 closely grouped peaks rising to 852 metres and are unique in Northern Ireland.
Unlike the rest of county down, the Mourne Mountains are made of granite.
