The Mourne Mountains Special Area of Conservation is a prominent upland landscape in County Down, Northern Ireland, known for its rugged peaks, diverse habitats, and extensive outdoor recreational opportunities including hiking and climbing.
The Mourne Mountains Special Area of Conservation (SAC) covers approximately 12,520 hectares in County Down, Northern Ireland. It includes the Mourne Mountains, a granite mountain range featuring the highest peaks in Northern Ireland, including Slieve Donard at 850 meters. The SAC designation reflects the area's importance for rare upland habitats and species. Notable habitats include heathland, blanket bog, and montane grassland that support a range of wildlife such as red grouse, peregrine falcon, and rare plant species like the Irish eyebright. The mountains form a dramatic landscape of rocky tors, steep slopes, and glacial valleys. The region is steeped in history, with ancient cairns and the iconic Mourne Wall built to enclose the catchment area for the Silent Valley Reservoir, an important water supply. Recreationally, the Mournes offer numerous hiking routes ranging from challenging summit ascents to gentle valley walks, attracting hillwalkers, climbers, and nature watchers. The area also hosts the Mourne Wall Challenge, a popular endurance walk. Visitor appeal includes panoramic views across the Irish Sea, opportunities for birdwatching, and the cultural heritage linked with the mountains. The SAC status ensures conservation measures that protect the landscape’s natural features while encouraging sustainable recreation.
Slieve Donard – Highest peak in Northern Ireland with panoramic views
The Mourne Wall – Historic 22-mile dry stone wall crossing 15 summits
Silent Valley Reservoir – Iconic water reservoir with scenic walking routes
Hen Mountain – Remote trail offering solitude and expansive vistas
The tallest peak in Northern Ireland at 850 meters, offering extensive views across the Mournes and out to the Irish Sea.
An historic 22-mile dry stone wall built in the early 20th century that crosses 15 mountain summits and marks the water catchment boundary.
A key water supply reservoir surrounded by walking trails, set in a deep glacial valley amidst rugged mountain scenery.