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Ireland

Donegal

Top 7 Mountain Passes in Donegal

Best mountain passes in Donegal traverse rugged landscapes and dramatic scenery, offering routes through the region's natural beauty. These ancient passages weave through hills, providing access to diverse geographic features and historical sites. The area is characterized by mountains, valleys, and coastal views, making it a notable destination for outdoor exploration.

Best mountain passes in Donegal

  • The most popular mountain passes include Mount Errigal, a summit that offers a magnificent view. The ascent can be steep, but the effort…

Last updated: April 28, 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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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 …

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Mamore Gap

Highlight • Mountain Pass

One of the the toughest climbs in Ireland, and it's worse from the Northern side!

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Glengesh Valley

Highlight • Mountain Pass

Glengesh ('Glen of the Swans') is a high mountain pass that passes through the Glengesh and Mumosog mountains linking Ardara and Glencolumbkille.

It is often referred to as the 'Donegal …

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Granny's Pass

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Granny's Pass is off the beaten track when it comes to mountain, yet it is so spectacular. The road runs though the Slievetooey mountain range and if traveling north west, is a glorious way to reach Maghere Beach and Caves.

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Mamore Gap

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Driving or cycling up to the Gap of Mamore takes you up a 30% climb. Running over from Dunree is the ideal way to enjoy the spectacular panoramic views without the steep tarmac ascents.

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View of Glengesh Pass

Highlight • Mountain Pass

Glengesh (which means ‘Glen of the Swans’) is a high mountain pass that cuts through the Glengesh and Mulmosog mountains and links the towns of Ardara and Glencolumbkille.

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Hiking Collection by

Alex Foxfield

Tips from the Community

Robin fitton
September 1, 2025, Mamore Gap

Great loop with a nice climb and views.

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Ev Ot
September 29, 2024, View of Glengesh Pass

Glengesh (which means ‘Glen of the Swans’) is a high mountain pass that cuts through the Glengesh and Mulmosog mountains and links the towns of Ardara and Glencolumbkille. Often referred to as the ‘Donegal Pass’, the road at Glengesh snakes through the valley and provides a very unique experience, regardless of whether you’re driving or on foot. https://www.theirishroadtrip.com/glengesh-pass/

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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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Wolf Beyenburg
February 3, 2024, Mount Errigal

A magnificent mountain, but the climb is quite boggy at first, but later you need to be sure-footed.

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Natalie
July 26, 2023, Mamore Gap

Driving or cycling up to the Gap of Mamore takes you up a 30% climb. Running over from Dunree is the ideal way to enjoy the spectacular panoramic views without the steep tarmac ascents.

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Natalie
July 25, 2023, Granny's Pass

Granny's Pass is off the beaten track when it comes to mountain, yet it is so spectacular. The road runs though the Slievetooey mountain range and if traveling north west, is a glorious way to reach Maghere Beach and Caves.

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Frequently Asked Questions

Which mountain passes in Donegal offer the most spectacular views?

For breathtaking panoramic views, Mamore Gap is highly recommended, especially overlooking Lough Swilly and the Fanad peninsula. Glengesh Valley, often called the 'Donegal Pass', also provides stunning vistas of the valley as it snakes through the Glengesh and Mumosog mountains. Additionally, the ascent to Mount Errigal rewards with magnificent views in all directions.

Are there any mountain passes in Donegal with significant historical or cultural importance?

Yes, Muckish Gap features the poignant 'Bridge of Tears' (Droichead na nDeor), a historical spot where families bid farewell to loved ones emigrating from Donegal. Barnesmore Gap, while historically a challenging route in the 1700s, remains a significant passage through Donegal's rugged interior today.

What are the most challenging mountain passes for experienced hikers or cyclists?

Mamore Gap is known for its challenging climb, particularly from the northern side, featuring a 30% gradient. The ascent to Mount Errigal can also be steep and boggy, offering a rewarding challenge for hikers.

Are there any less crowded or off-the-beaten-track mountain passes to explore in Donegal?

Granny's Pass, running through the Slievetooey mountain range, is considered spectacular yet remains off the beaten track. It offers a glorious route to reach Maghera Beach and Caves, providing a more secluded experience.

What kind of outdoor activities can I do near Donegal's mountain passes?

Beyond exploring the passes themselves, Donegal offers a variety of outdoor activities. You can find numerous hiking trails, including easy options like the Glenveagh Castle walk or more moderate routes such as the Sliabh Liag/Slieve League Pilgrim Path. For runners, there are dedicated running trails like the Lakeside Walk. You can explore more options in the guides for Hiking in Donegal, Easy hikes in Donegal, and Running Trails in Donegal.

Are there family-friendly options among Donegal's mountain passes or nearby trails?

While some passes like Mamore Gap are challenging, many areas around Donegal offer family-friendly walks. For instance, the Bridle Path is an eight-kilometer walking route through the Derryveagh mountains, suitable for families, passing by oak woods and waterfalls. Easy hikes like the Glenveagh Castle along Lough Veagh are also great options for families, found in the Easy hikes in Donegal guide.

What natural features can I expect to see when visiting mountain passes in Donegal?

Donegal's mountain passes showcase diverse natural beauty. You'll encounter rugged mountains, deep valleys, and often stunning coastal views. Glengesh Pass, for example, offers views of the Glengesh Valley and is dotted with sheep. Passes often lead to remote countryside, hidden beaches, and waterfalls, with some providing access to impressive sea cliffs like Slieve League.

What is the best time of year to visit Donegal's mountain passes?

The best time to visit Donegal's mountain passes is generally during the warmer, drier months from late spring to early autumn (May to September). During this period, the weather is more favorable for driving, cycling, and hiking, and the views are typically clearer. However, the rugged beauty can be appreciated year-round, with each season offering a different atmosphere.

Can I find viewpoints or picnic spots along the mountain passes?

Yes, several passes offer dedicated viewpoints. Glengesh Pass has a viewpoint with picnic benches and a refreshment caravan, making it an ideal spot to take a break and enjoy the scenery. Many passes, including Mamore Gap and Mount Errigal, are renowned for their panoramic vistas, providing excellent photo opportunities.

What is Mackoght (Wee Errigal) and how does it relate to Mount Errigal?

Mackoght, also known as Little Errigal or Wee Errigal, is one of the Seven Sisters mountains in Donegal. Standing at 555m, it offers amazing views and can be a great extension to a hike up Mount Errigal if you have additional time and energy.

Are there any specific tips for hiking Mount Errigal?

When hiking Mount Errigal, be aware that the path from the parking lot on the R251 can be very boggy, and the ascent is steep over gravel. Despite the challenge, the effort is well rewarded with magnificent panoramic views from the summit. Proper footwear is highly recommended.

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Find even more amazing mountain passes in Donegal organized by region:

Glenties Municipal District

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