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Ireland

Donegal

The 17 Most Amazing Peaks in Donegal

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.

Best mountain peaks in Donegal

  • The most popular mountain peaks is Mount Errigal, a summit that is the highest peak in County Donegal at 751 meters. This quartzite mountain is known for its distinctive appearance and panoramic views.
  • Another must-see spot is Cnoc Ramhar (Crockrawer) Summit, a summit with sweeping ocean views. At 435.2 meters high, it offers a unique hike to the top.
  • Visitors also love View of Mount Errigal from Clady River, a viewpoint offering a perspective of the highest mountain in Donegal. This spot provides a clear view of Errigal's iconic shape.
  • Donegal is known for its quartzite mountains, flat-topped peaks, and sea cliffs. The region offers a variety of mountain peaks to see and explore, from challenging summits to scenic viewpoints.
  • The mountain peaks in Donegal are appreciated by the komoot community. The guide features 16 highlights, with 44 upvotes and 52 photos from visitors.

Last updated: May 27, 2026

Mount Errigal

Highlight • Summit

The way from the parking lot on the R251 to the Errigal is very boggy. Steep ascent over gravel. However, the effort is rewarded with a magnificent view!

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Slieve League Cliffs

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Slieve League is a mountain on the Atlantic coast of County Donegal, Ireland. At 594 metres, it has some of the highest sea cliffs on the island of Ireland. Although less famous than the Cliffs of Moher in County Clare, Slieve League's cliffs reach almost three times higher. It has a trig pointed summit and is a designated Marilyn but just below the height required for it to be a Hewitt. A superb mountain to do with world class views.

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Muckish Summit Cross

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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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At 435.2m high, Cnoc Ramhar (Crockrawer in english) is a beautiful summit to reach. With sweeping ocean views it is a unique hike to the top. Although please check the weather conditions as the hike can be dangerous when windy due its exposed clifftop location.

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The highest mountain in the Derryveagh range, Errigal peaks at 715m. It is also the tallest of the 'Severn Sisters' and in county Donegal. It's iconic shape makes it one of the most photographed places in Ireland.

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Slieve League Southeast Summit

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At 577m high, the summit of Slieve League SE commands gorgeous views over the cliffs and along to One Man's Pass. At twice the height of the Eiffel Tower, it is a truly spectacular spot.

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Mackoght (Wee Errigal)

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One of the Seven Sisters, Mackoght is also sometimes known as LIttle Errigal or Wee Errigal. At 555m tall, it makes for a nice extension of a hike up Mount Errigal if you have some extra time and energy to spare.

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Slieve Snaght Summit

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Slieve Snaght is a mountain in the middle of the Inishowen peninsula of County Donegal, Ireland. It rises to a height of 615 metres (2,018 ft), making it the highest mountain in Inishowen and is one of the northernmost mountains of Ireland. It should not be confused with the mountain of the same name in the nearby Derryveagh range. It is an Irish Hewitt and has a trig pointed summit.

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View of Slieve League Ridge

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There are three options to get up: the shuttle; by bike; on foot. Something for everyone.

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The Urris Lakes loop takes in some magnificent views. WIth Lough Fad behind you, you can see over Lenan Strand to Dunaff Hill, standing at 284m high.

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Tips from the Community

Willem VS
May 30, 2026, View of Mount Errigal from Clady River

Mount Errigal (751 m) is the highest mountain in Donegal and one of Ireland's most iconic peaks. The mountain is immediately striking with its sharp, pyramid-shaped silhouette and its quartz summit that shines almost white in sunlight. Errigal stands apart from the surrounding hills, giving it a dominant presence from all directions — especially when driving inland from Dungloe, Doochary, or Dunlewey.

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There are three options to get up: the shuttle; by bike; on foot. Something for everyone.

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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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Great path to the cliffs and it is definitely worth walking the route rather than taking the shuttle.

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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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Mary
March 31, 2024, Mount Errigal

A beautiful walk. Steep but you are up and down in two hours. Fantastic views from the top!!!

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Frequently Asked Questions

What are some of the most popular mountain peaks to visit in Donegal?

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.

Are there any family-friendly mountain walks or viewpoints in Donegal?

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.

What kind of terrain and elevation can I expect when hiking in Donegal's mountains?

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.

What historical or natural landmarks can be found near Donegal's mountain peaks?

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'.

What outdoor activities can I do near the mountain peaks in Donegal?

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.

Are there specific hiking trails near Donegal's mountain peaks?

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.

What is the best time of year to visit Donegal's mountains for hiking?

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.

What makes <strong><a href="https://www.komoot.com/highlight/5878606" target="_blank" rel="noopener">Cnoc Ramhar (Crockrawer) Summit</a></strong> a unique hike?

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.

What do visitors enjoy most about the mountain peaks in Donegal?

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.

Are there any notable viewpoints that offer great perspectives of the 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.

What is the significance of <strong><a href="https://www.komoot.com/highlight/4530142" target="_blank" rel="noopener">Muckish Mountain</a></strong>?

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.

What should I know about accessibility and parking for mountain hikes in Donegal?

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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