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Clonlum

The 4 Most Amazing Peaks around Clonlum

Best mountain peaks around Clonlum offer diverse landscapes and historical significance. The region features prominent peaks like Slieve Gullion, an extinct volcano, and others providing extensive views. Visitors can explore ancient burial sites, unique geological formations, and panoramic vistas across the countryside. These peaks provide varied experiences for outdoor enthusiasts.

Best mountain peaks around Clonlum

  • The most popular mountain peaks is Slieve Gullion Summit, a volcano that features the highest passage tomb in the British Isles at 573 meters.…

Last updated: July 2, 2026

Slieve Gullion Summit

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The highest Passage Tomb in the British Isles is located on the summit of Slieve Gullion at 573 meters. The passage grave can be entered through a niche that is …

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The North Cairn of Slieve Gullion is somewhat smaller than the South Cairn; it measures about 18 meters in diameter. During excavations, two stone boxes from the Bronze Age were …

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At the highest point of the Black Mountain you are greeted by spectacular views of the surrounding landscape and the Irish Sea.

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Black Mountain North Side

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Tough climb to an excellent viewpoint.
This climb is very steep for the first 0.7km and then levels off, with a kick at the end. Ascend to approximately 560m and …

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Carnavaddy Summit

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Carnavaddy isn't quite an official mountain at 475 m (1,558 ft), but it's a prominent mountain and commands great views down the peninsula and out to sea.
It can be …

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51m
May 13, 2026, Carnavaddy Summit

Carnavaddy isn't quite an official mountain at 475 m (1,558 ft), but it's a prominent mountain and commands great views down the peninsula and out to sea. It can be walked from either side and is often combined with Clermont Carn to the north to make an excellent mountain day.

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As soon as you cross the gentle ridge of Slieve Gullion, the North Cairn stretches out before you - a slightly smaller hill than its southern neighbour, but no less impressive. The stones that gather here seem like silent sentinels, witnesses of the distant Bronze Age. Two ancient stone boxes were once found here during excavations, which lay hidden in the depths of history. The North Cairn, with its diameter of around 18 metres, invites you to pause for a moment and enjoy the peace. But it is not just the Cairn that is fascinating. Right next to it lies "Calliagh Beara's Lough", a quiet mountain lake that, according to legend, is the home of the witch Beara. On a clear day, the sky is reflected in the calm waters and you can almost feel the ancient magic of this place coming to life. The road here may be rocky, but the landscape rewards with sweeping views and a touch of mysticism that makes Slieve Gullion something special.

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StevieT
November 27, 2023, Slieve Gullion Summit

A tough climb but great views from the top!

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At the highest point of the Black Mountain you are greeted by spectacular views of the surrounding landscape and the Irish Sea.

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At the heart of the Ring of Gullion AONB, you'll find this beautiful mountain, which represents the highest point in the county with an elevation of 573 meters (1,880 ft). Right next to it there is a burial cairn.

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Slieve Gullion, whose name sounds as poetic in English as "Sliabh gCuillinn" in Irish, rises majestically in the "Ó Fiaich Country" in the south of County Armagh in Northern Ireland. At 573 meters high, it not only hides a geological wonder in the form of an extinct volcano, but also the highest Passage Tomb in the British Isles. This passage tomb is particularly mysterious because its entrance is aligned exactly towards the point where the sun sets on the winter solstice. The best place to start your hike is from the Slieve Gullion viewing platform, where there is not only plenty of parking, but also space to stay overnight in a motorhome. From there a clearly marked path, demarcated by a staircase of large rocks, leads to the South Cairn. The transition between the South Cairn and the North Cairn is soft and wet, making the path a true nature experience. However, it should be noted that the descent from the North Cairn back to the viewing platform is rather steep and not always clear. From the summit, hikers are treated to a breathtaking panorama. The view sweeps over the landscape all around and you quickly understand why this area has been classified as an "Area of Outstanding Natural Beauty". The "Slieve Gullion Forest Park" landscape protection area extends over large heath areas on the sunlit mountain slopes. For those who want to experience the full spectrum of this stunning area, there is the 57km long waymarked Ring of Gullion Way. A 13 km long section of this circular hiking trail, the “Slieve Gullion Walk”, leads from the car park at Meigh directly to the summit and back again.

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Wikipedia (Clermont Carn (Irish: Carnán Mhaighréid Náir), 2022-11-03): https://en.m.wikipedia.org/wiki/Clermont_Carn Wikipedia (Clermont Carn transmission site, 2022-11-03): https://en.m.wikipedia.org/wiki/Clermont_Carn_transmission_site Wikipedia (Cooley Mountains, 2022-11-03): https://en.m.wikipedia.org/wiki/Cooley_Mountains MountainViews.ie (Clermont Carn, 2022-11-03): https://mountainviews.ie/summit/434/ - Viewpoint (Carlingford Lough, Dundalk, …) - Transmission site (2RN (RTÉ Networks), Saorview, …) - Neolithic burial cairn

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The climb up the north side of Black Mountain challenges you right from the start - the first half kilometre feels like a wall before it levels out a bit. But don't be fooled, there's a final kick just before the summit that will make your legs feel what they've done. Once at the top, you'll be rewarded with impressive views of the surrounding countryside that will make you feel like you're standing on top of the world. The route itself runs right along the border between Ireland and Northern Ireland, which creates a special atmosphere. Keep warm in changing weather and be prepared for sudden showers - the wind can pick up quickly up here. The descent requires some caution, as some parts are steep and the tarmac isn't always perfect. But that's what makes it so appealing - an adventure worth it and an experience to remember.

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Frequently Asked Questions

What are the most prominent mountain peaks to visit around Clonlum?

The most prominent peaks in the Clonlum area include Slieve Gullion Summit, known for its historical significance and panoramic views, Carnavaddy Summit, offering extensive views down the peninsula, and Clermont Carn Summit, which provides additional hiking opportunities and broad vistas.

What kind of views can I expect from the mountain peaks around Clonlum?

From Slieve Gullion Summit, you can enjoy fantastic 360-degree views across the surrounding countryside. Carnavaddy Summit offers great views down the peninsula and out to sea, while Clermont Carn Summit provides spectacular views of the surrounding landscape and the Irish Sea.

Are there historical sites on the mountain peaks around Clonlum?

Yes, several peaks boast significant historical sites. Slieve Gullion Summit is home to the highest passage tomb in the British Isles. Nearby, the North Cairn of Slieve Gullion contains Bronze Age stone boxes. Clermont Carn Summit also features a Neolithic burial cairn.

What are the difficulty levels for hiking these peaks?

Hiking to Slieve Gullion Summit is generally considered intermediate to challenging, with well-defined paths but some steep sections. Carnavaddy Summit and Clermont Carn Summit are typically intermediate. For a particularly challenging ascent, the Black Mountain North Side offers a very steep climb initially, rewarding experienced hikers with excellent views.

Are there any unique natural features on these mountain peaks?

Slieve Gullion is an extinct volcano, offering a unique geological landscape. Near the North Cairn of Slieve Gullion, you'll find "Calliagh Beara's Lough," a quiet mountain lake situated on top of the ridge, adding to the area's mystique.

What outdoor activities can I do near these mountain peaks?

Beyond peak bagging, the Clonlum area offers a variety of outdoor activities. You can find numerous hiking routes, including easy and moderate options, as well as cycling tours. Explore more options in the Easy hikes around Clonlum, Hiking around Clonlum, and Cycling around Clonlum guides.

Are there family-friendly mountain walks around Clonlum?

While some peaks offer challenging ascents, there are easier hiking options in the wider Clonlum area that are suitable for families. For example, the Giant's Lair Trail and loops around Slieve Gullion Summit from Ring of Gullion AONB are listed as easy hikes in the Easy hikes around Clonlum guide.

What should I know about parking for mountain walks in Clonlum?

For Slieve Gullion Summit, there is ample parking space at the Slieve Gullion Viewing Platform, which is a common starting point for the ascent.

What is the best time to visit the mountain peaks around Clonlum?

The best time to visit is generally during drier, milder weather to fully enjoy the panoramic views and hiking conditions. Be prepared for sudden weather changes, especially at higher elevations, regardless of the season.

Can I combine hikes of different peaks?

Yes, some peaks are often combined for a more extended hiking experience. For instance, Carnavaddy Summit is frequently combined with Clermont Carn Summit for an excellent mountain day, offering diverse views and a rewarding challenge.

What do visitors enjoy most about hiking the peaks around Clonlum?

Visitors frequently highlight the breathtaking panoramic views, the sense of achievement from reaching the summits, and the rich historical and mythological significance of sites like the passage tomb on Slieve Gullion. The unique natural features, such as Calliagh Beara's Lough, also add to the memorable experience.

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