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Northern Ireland

Glenviggan

Top 4 Natural Monuments around Glenviggan

Best natural monuments around Glenviggan are situated within County Londonderry, Northern Ireland, nestled in the Sperrin Mountains, an Area of Outstanding Natural Beauty. This region features a landscape shaped by the ice age, characterized by heather-clad hills, gentle valleys, and picturesque fields. The area offers a variety of natural features, from mountain peaks to ancient woodlands and unique geological formations. Visitors can explore diverse natural settings and historical sites within this tranquil environment.

Best natural monuments around Glenviggan

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Last updated: May 19, 2026

Sawel Mountain Summit

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Sawel Mountain stands at 678m and is the highest peak in the Sperrins range, and the 8th highest in Northern Ireland. The vegetation around the summit consists of montane heathland, …

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Beaghmore Stone Circles

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Beaghmore is a complex of early Bronze Age megalithic features, stone circles and cairns, 8.5 miles north west of Cookstown, on the south-east edge of the Sperrin Mountains.

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Aghascrebagh Ogham Stone

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This ogham stone, which stands only 1,22 m in height, 0,46 m, in width and 0,53 m, in depth.
It is one of the few ogham stones still to be …

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There is an info board here near the peak of Crockmore that highlights some fascinating facts about blanket bog and the importance of it in terms of wildlife habitat.

There …

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View from Slieve Gallion

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Slieve Gallion is 528 metres high and sits on the western shore of Lough Neagh. The mountain is a volcanic plug meaning it is formed from volcanic igneous rock and …

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Feargal McEneaney
June 23, 2025, Sawel Mountain Summit

Wear waterproof shoes/boots because even on the longest day of the year it's still wet underfoot

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There is an info board here near the peak of Crockmore that highlights some fascinating facts about blanket bog and the importance of it in terms of wildlife habitat. There is also some information about how historically the Irish have used blanket bog as fuel to heat the home and cooking!

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Beaghmore (Bheitheach Mhór), meaning ‘big place of birch trees’. The stones speak of ancient rituals and to a people who understood astronomy. When you visit this ancient site look up in wonder at the sky and reflect, that the people that built these monuments observed the same sky, sun, moon and stars.

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There are 7 stone circles, 12 cairns and 10 rows of stones here at Beaghamore. In total 1269 stones were discovered under the peat during the 1930s. The site dates back to 2900 - 2600 BC.

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Ogham Stones are rare in Northern Ireland and this is the only one in County Tyrone. It is marked with an ancient alphabet, thought to be the earliest form of the Irish language. It reads; 'Do Te Tto Maqi Maglant'. This refers to two males. 'Maqi' means 'son of'.

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Sawel Mountain stands at 678m and is the highest peak in the Sperrins range, and the 8th highest in Northern Ireland. The vegetation around the summit consists of montane heathland, featuring a medley of plant life including heather, bilberries and cowberries. From the summit, you can enjoy uninterrupted views across the countryside of County Londonderry and Tyrone. It's all downhill from this point on, so you can enjoy a scenic descent back to the carpark.

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Sawel Mountain stands at 678m and is the highest peak in the Sperrins range, and the 8th highest in Northern Ireland. The vegetation around the summit consists of montane heathland, featuring a medley of plant life including heather, bilberries and cowberries. From the summit, you can enjoy uninterrupted views across the countryside of County Londonderry and Tyrone.

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Slieve Gallion is 528 metres high and sits on the western shore of Lough Neagh. The mountain is a volcanic plug meaning it is formed from volcanic igneous rock and granite on the southern slopes. There is plenty of wildlife in the area with the Irish hare, the curlew and red grouse to spot.

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Frequently Asked Questions

What natural features can I explore near Glenviggan?

The region around Glenviggan, nestled within the Sperrin Mountains, offers a variety of natural features. You can explore the highest peak, Sawel Mountain Summit, offering panoramic views. Other notable natural areas include Gortin Glen Forest Park with its serene woodlands, Drumnaph Nature Reserve known for its diverse habitats and wildlife, and Banagher Glen Nature Reserve, a wooded river valley. Ness Country Park also features Northern Ireland's highest waterfall.

Are there historical or archaeological sites among the natural monuments?

Yes, the area beautifully blends natural landscapes with significant historical sites. The Beaghmore Stone Circles are a prime example, featuring early Bronze Age megalithic structures aligned with celestial movements. Additionally, the Aghascrebagh Ogham Stone, one of the few ogham stones in Ulster, provides a glimpse into ancient Irish language and history.

What outdoor activities can I do near these natural monuments?

The region around Glenviggan is excellent for various outdoor activities. You can find numerous trails for running, such as the challenging Dart and Sawel Mountain loop, or more moderate options like the Derrynoyd Forest loop. For hiking, there are easy trails like the Lough Fea Walk or the Solar Walk Boardwalk. Mountain biking enthusiasts can explore routes like the Davagh Forest trails or the Banagher Dam and Moydamlaght Forest loop. You can find more details on these activities in the running trails, easy hikes, and MTB trails guides for Glenviggan.

Are there family-friendly natural spots around Glenviggan?

Absolutely. Gortin Glen Forest Park offers color-coded trails suitable for families, where you might even spot deer. Ness Country Park is another great option with picnic areas and diverse wildlife habitats. The Beaghmore Stone Circles also provide an engaging historical and natural experience for all ages.

What is the best time to visit Glenviggan's natural heritage?

The Sperrin Mountains, where Glenviggan is located, offer beauty year-round. Spring and summer provide lush landscapes and longer daylight hours, ideal for hiking and exploring. Autumn brings vibrant colors to the woodlands. Even in winter, the natural monuments can be stunning, though some trails might be wet underfoot, so waterproof footwear is recommended.

Can I find easy hiking trails near Glenviggan's natural monuments?

Yes, there are several easy hiking options. The Lough Fea Walk is a gentle 4 km trail, and the Solar Walk Boardwalk near Beaghmore offers a pleasant 6 km loop. Derrynoyd Forest also has an easy 3 km loop. These trails are perfect for a relaxed exploration of the natural surroundings. More details can be found in the easy hikes around Glenviggan guide.

What kind of wildlife can I expect to see at natural monuments near Glenviggan?

The diverse habitats around Glenviggan support a variety of wildlife. In Drumnaph Nature Reserve, you can observe a rich array of species in its ancient woodland, wetlands, and bog. At Sawel Mountain Summit, the montane heathland is home to diverse plant life. Slieve Gallion is known for wildlife such as the Irish hare, curlew, and red grouse. Gortin Glen Forest Park is also a good place to spot deer.

Are there any unique geological formations in the Glenviggan area?

The landscape of the Sperrin Mountains, including the Glenviggan area, was significantly shaped by the ice age, carving out features like Barnes Gap and Gortin Glen. Slieve Gallion is a notable geological feature, being a volcanic plug formed from igneous rock and granite. You can also find information boards near Crockmore Peak highlighting the importance of blanket bog formations.

What do visitors enjoy most about the natural monuments around Glenviggan?

Visitors particularly appreciate the uninterrupted, panoramic views from peaks like Sawel Mountain Summit. The historical significance and ancient mystery of sites like the Beaghmore Stone Circles are also highly valued. The tranquil natural environments, opportunities for wildlife spotting, and the sense of immersion in a wild, remote landscape are frequently highlighted.

Is there a specific natural monument that highlights the unique ecosystem of the Sperrins?

Yes, the Blanket Bog and Turf Information Boards Near Crockmore Peak specifically highlight the unique blanket bog ecosystem. These information boards explain the fascinating facts about blanket bog and its importance as a wildlife habitat, as well as its historical use by the Irish for fuel.

Are there opportunities for stargazing near Glenviggan's natural monuments?

The wild and remote character of the Sperrin Mountains, coupled with minimal light pollution, makes it an excellent location for stargazing. While not a natural monument itself, the OM Dark Sky Park and Observatory in Davagh Forest offers unique astronomical experiences within the broader natural setting of the Sperrins.

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