Best natural monuments around Glasdrummond include ancient woodlands and significant geological formations. The region features a diverse landscape, including an extinct volcano and high-altitude loughs. These natural features offer opportunities to explore ancient sites and enjoy expansive views. The area provides a range of natural attractions for outdoor enthusiasts.
Last updated: June 30, 2026
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The Ballymacdermot Court Tomb is a window into the past, waiting for you at the top of Ballymacdermot Mountain. As you look at the ancient stones, you can almost feel the thousands of years that have passed since they were built. These stone sentinels, erected between 4000 and 2500 BC, have seen countless sunrises over the valley and speak of a time when this place may have been sacred. The views from up here stretch far over the rolling hills of County Armagh and it's easy to imagine why Stone Age people chose this spot. Just three kilometres from Newry, the court tomb not only offers a glimpse into ancient history, but also a wonderful opportunity to enjoy the surrounding countryside. Other Neolithic sites nearby include the Ballykeel Dolmen and the Clontigora Cairn, which together paint a picture of the early cultures of this region. A visit here is more than just a hike – it is a journey back to the roots of human history.
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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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Ballymacdermot Court Tomb is a megalithic tomb on Ballymacdermot Mountain, two miles outside Newry. The site is a scheduled monument in State care. The site dates from between 4000 and 2500 BC and is located close to other neolithic monuments such as Ballykeel Dolmen and Clontigora Cairn. - https://en.wikipedia.org/wiki/Ballymacdermott_Court_Tomb - https://discovernorthernireland.com/things-to-do/ballymacdermot-court-tomb-p697471
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This lough, located between the northern and southern burial cairns of Slieve Gullion, is the highest in Northern Ireland.
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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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There are great views of Newry City, The Mourne Mountains, Carlingford Lough and The Cooley Moiuntains from up here. Flags were raised here to announce arriving boats coming into the lough, hence the name Flagstaff.
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Glasdrummond is home to diverse natural features, including an extinct volcano, high-altitude loughs, and ancient woodlands. You can visit Slieve Gullion Summit, an extinct volcano featuring the highest Passage Tomb in the British Isles, or explore the serene Calliagh Beara Lough, the highest lough in Northern Ireland.
Yes, the region is rich in historical natural monuments. The Slieve Gullion Summit hosts the highest Passage Tomb in the British Isles. Additionally, the North Cairn of Slieve Gullion contains Bronze Age findings, and Ballymacdermot Court Tomb is a significant megalithic tomb dating from between 4000 and 2500 BC.
For panoramic vistas, the Slieve Gullion Summit offers fantastic views all around from the extinct volcano. Another excellent spot is Flagstaff Viewpoint, which provides great views over the Mourne Mountains, Carlingford Lough, and the Cooley Mountains.
While many natural monuments can be enjoyed year-round, visiting in spring is particularly recommended. This is when the ancient woodlands, such as Glasdrum Wood National Nature Reserve, are carpeted with wildflowers like bluebells and violets, and butterflies are active.
Yes, Flagstaff Viewpoint is considered family-friendly, offering accessible views. The Glasdrum Wood National Nature Reserve also features short walking trails suitable for families to explore its ancient woodlands and observe butterflies.
The natural monuments offer a range of hiking experiences. Trails to Slieve Gullion Summit can be challenging, with well-defined paths in some sections but steeper, softer ground in others. The Glasdrum Wood National Nature Reserve provides shorter, tranquil trails through ancient woodlands. You can find more hiking options in the running trails guide around Glasdrummond.
Beyond exploring the natural monuments themselves, the Glasdrummond area offers various outdoor activities. You can find numerous running trails, road cycling routes, and MTB trails to suit different preferences and fitness levels.
The difficulty varies. For instance, the ascent to Slieve Gullion Summit is rated as challenging, especially the descent from the north cairn. Other areas, like the trails within Glasdrum Wood, are generally easier and more accessible for a leisurely walk.
For Slieve Gullion Summit, ample parking space is available at the Slieve Gullion Viewing Platform, which serves as a convenient starting point for hikes to the summit and cairns.
Glasdrum Wood is notable for its ancient Western Atlantic oakwoods, rich biodiversity, and exceptional bryophytes and lichens. It's also a vital habitat for over 20 species of butterflies, including rare ones like the pearl-bordered fritillary and the chequered skipper, making it a significant site for nature enthusiasts.
Yes, Glasdrum Wood National Nature Reserve is particularly known for its rare butterflies, such as the pearl-bordered fritillary and the chequered skipper. The ancient woodlands also host a rich flora, including bluebells, violets, and marsh thistle, especially vibrant in spring.
The loughs around Slieve Gullion hold both natural and historical significance. Calliagh Beara Lough is notable as the highest lough in Northern Ireland, nestled between ancient burial cairns. The nearby Calliagh Beara's Lough, next to the North Cairn, is a quiet mountain lake steeped in local legend.


Extend your search for the best caves by checking out these guides of the top ones around Glasdrummond: