Best mountain peaks in Donegal are found within a rugged landscape in the northwest of Ireland. The county features two main mountain ranges: the Derryveagh Mountains and the Bluestack Mountains. These areas offer a variety of peaks, from quartzite mountains to sea cliffs. Donegal's mountains provide diverse experiences for exploration.
Last updated: April 25, 2026
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A beautiful view of the Irish Fujijama. Near the hotel on the road there are a few archaic round stone posts which, together with the water, provide a beautiful foreground.
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The cliffs of Slieve League (Irish: Sliabh Liag; translated: Stone Mountain) in the west of the Irish county of Donegal on the Atlantic Ocean are one of the main attractions in this region. The cliffs, which drop steeply into the sea, are 601 meters high and are among the highest cliffs in Europe. (Source: Wikipedia.org) The first part of the cliffs is fenced off, so you don't need to be afraid of heights. But even further up you can keep a few meters away from the cliff and explore a lot before the hiking trail gets really narrow.
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Unfortunately, the pictures of the unique landscape do not show the unbridled wind that almost wanted to push us off the path, but at least it managed to get the omnipresent sheep shit rolling on the stones. The well-developed hiking trail made of rough boulders is not for hikers with knee problems, as it is basically just steps up or down.
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From the sea side, Muckish Mountain looks like a giant lying wild boar in silhouette. It can be climbed well and safely and offers a great view.
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Errigal, standing tall at 751 meters in County Donegal, Ireland, beckons hikers with its stunning vistas and challenging trails. While the ascent demands physical prowess and sturdy footwear, the panoramic views from the summit are unparalleled. For a more leisurely experience, the circular route around the mountain offers equally captivating scenery. Whether you seek adventure or tranquility, Errigal promises an unforgettable journey through Ireland's natural splendor.
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A beautiful walk. Steep but you are up and down in two hours. Fantastic views from the top!!!
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A magnificent mountain, but the climb is quite boggy at first, but later you need to be sure-footed.
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Donegal offers a range of impressive peaks. Among the most popular is Mount Errigal, the highest peak in the county, known for its distinctive appearance and panoramic views. Another highly regarded spot is Slieve League Cliffs, which boast some of Europe's highest sea cliffs with staggering ocean vistas.
Yes, for a family-friendly experience, consider visiting the View of Mount Errigal from Clady River. This viewpoint offers a clear perspective of Errigal's iconic shape without a strenuous climb. While many mountain trails can be challenging, some areas offer gentler paths or scenic drives to viewpoints.
Donegal's mountains feature diverse terrain. Peaks like Mount Errigal involve boggy sections and steep scree ascents, while Muckish has a distinctive flat-topped summit with a large scree area. The Slieve League Cliffs offer trails along dramatic coastal edges. Elevations vary, with Errigal reaching 751 meters and Slieve League's cliffs soaring to nearly 600 meters.
Near Slieve League Cliffs, you can find remains of an early Christian monastic site, including a chapel and beehive huts, indicating its historical significance as a pilgrimage site. Muckish is known for its history of quartz sand mining, with remnants of old mine workings visible along the 'Miner's Path'.
Beyond hiking, Donegal's mountainous regions offer excellent opportunities for cycling and gravel biking. You can explore routes like the 'Gravel loop to Glenveagh National Park' or 'Loop around Taobh an Leithid peak' for gravel biking, or try cycling routes such as the 'Rossguill Peninsula loop'. For more details, check out the Gravel biking in Donegal and Cycling in Donegal guides.
Yes, there are numerous hiking trails. For instance, you can hike the 'Sliabh Liag/Slieve League from Teelin on the Pilgrim Path' or take on the 'Mount Errigal & Mackoght loop'. Another option is the 'Crockrawer/Cnoc Ramhar Summit' trail. You can find more hiking options in the Hiking in Donegal guide.
The best time to visit Donegal's mountains for hiking is generally during the warmer, drier months from late spring to early autumn (May to September). During this period, you'll experience longer daylight hours and more stable weather conditions, making for more enjoyable and safer climbs. However, always be prepared for changeable weather in Ireland.
Cnoc Ramhar (Crockrawer) Summit, at 435.2 meters high, offers sweeping ocean views, making it a unique hike. Its exposed clifftop location provides a distinct experience, though it's important to check weather conditions as it can be dangerous when windy.
Visitors frequently praise the magnificent panoramic views from summits like Mount Errigal, which offers stunning vistas in all directions. The dramatic landscapes, the sense of solitude, and the rewarding challenge of the climbs are also highly valued by those exploring Donegal's mountains.
Absolutely. The View of Mount Errigal from Clady River provides an iconic perspective of Donegal's highest mountain. Additionally, the View of Lenan Strand and Dunaff Hill from Urris Lakes offers magnificent scenery, looking out over the coast.
Muckish Mountain is distinctive for its flat-topped profile, which locals say resembles a 'pig's back'. It's also historically significant for its quartz sand mining, used in optical glass manufacturing. The 'Miner's Path' offers insights into this industrial past, and its summit provides broad views of the coast and surrounding landscape.
For popular peaks like Mount Errigal, there is parking available, though the initial path from the R251 can be boggy. Recent infrastructure improvements, including new pathways, have made the climb more accessible. For Slieve League, a paved road leads to an upper car park and viewing platform, making it accessible for those who prefer not to hike the full trail.


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