Best natural monuments around Glenlark are found within the Sperrin Mountains, an Area of Outstanding Natural Beauty characterized by glaciated valleys, moorland, and blanket bog. This region offers a distinct natural charm, showcasing geological wonders and diverse landscapes. Visitors can explore deeply incised streams, unique loughs, and dramatic glacial formations. The area provides insights into geological processes and serves as a habitat for various flora and fauna.
Last updated: June 30, 2026
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High above Cookstown, at the foot of the impressive Sperrin Mountains, you will find the Beaghmore Stone Circles. This is one of Ireland's most fascinating archaeological sites. Only rediscovered in the 1940s during peat cutting, the bog revealed a complex of seven stone circles, ten stone rows, and numerous Bronze Age burial mounds. For a cyclist, the road to Beaghmore is an experience in itself. The route takes you away from the inhabited world into a vast, quiet landscape where the wind has free rein. The complex itself exudes an enormous sense of peace and is the perfect place to get off your bike and soak up the prehistoric atmosphere.
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Wear waterproof shoes/boots because even on the longest day of the year it's still wet underfoot
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Mullaghclogha is a 635m high summit located in the beautiful Sperrins mountains of Northern Ireland. The hilltop produces views all over the incredible mountain range of the Sperrins including the nearby Mullaghdoo, Sawel & Dart peaks.
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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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Formed from a glacial overflow, Barnes Gap is truly breathtaking. On your way up, don't forget to take in the spectacular views. The gap cuts through the east-west crest line of the southern Sperrin Mountains ridge, between the hills of Mullaghbane and Mullaghbolig.
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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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Beyond the highest peaks, you can explore the dramatic glacial formation of Barnes Gap, which cuts through the southern Sperrin Mountains ridge. Another unique site is Beaghmore Stone Circles, an ancient complex deeply intertwined with the natural landscape and celestial observations.
Glenlark is rich in geological wonders, primarily shaped by glaciation. You can observe deeply incised streams like the Glendarragh Burn and Glenlark River, which offer insights into the region's geological past. Barnes Gap is a prime example of a glacial overflow, creating a breathtaking natural cut through the mountains.
Yes, the Beaghmore Stone Circles are a significant historical site, featuring seven low stone circles, twelve cairns, and ten stone rows dating back to 2900-2600 BC. These alignments correlate with celestial movements, connecting human history with natural cycles. Additionally, the Aghascrebagh Ogham Stone is a rare ancient monument in Ulster, bearing early Irish script.
The natural monuments in Glenlark offer spectacular panoramic views. From Sawel Mountain Summit, the highest peak in the Sperrins, you can enjoy uninterrupted vistas across County Londonderry and Tyrone. Similarly, Mullaghclogha Summit provides extensive views across the incredible Sperrins mountain range.
The Beaghmore Stone Circles are considered family-friendly, offering an engaging historical and natural experience for all ages. The relatively small stones and accessible layout make it suitable for families to explore together.
The Sperrin Mountains, including the Glenlark area, are a habitat for diverse wildlife. Keep an eye out for red fox, sika deer, pine marten, and red squirrels. Birdwatchers might spot peregrine falcons, buzzards, and sparrowhawks soaring above the moorland and glaciated valleys.
The region offers a variety of outdoor activities. You can find numerous running trails, including routes like the Dart and Sawel Mountain loop. For cyclists, there are challenging road cycling routes and exciting mountain biking trails, such as those in Davagh Forest.
Yes, the Sperrin Mountains offer numerous trails for walking and exploring its natural beauty. While specific hiking routes for each monument vary, you can find many options for running and walking that will take you close to or directly through these natural sites, from gentle walks to challenging hikes.
The best time to visit is generally during the warmer, drier months from late spring to early autumn (May to September). This period offers more pleasant weather for exploring the outdoor sites and enjoying the scenic views. However, the wild, untouched character of the Sperrins can be appreciated year-round, with winter offering a different, rugged beauty.
While specific parking details vary for each site, many natural monuments and trailheads in the Sperrin Mountains, including those near Glenlark, typically have designated parking areas. It is advisable to check local signage or visitor information for specific monuments like Beaghmore Stone Circles or popular mountain access points.
Visitors frequently praise the unspoiled natural beauty and the tranquility of the area. The dramatic geological formations, such as Barnes Gap, and the panoramic views from summits like Sawel Mountain are highly appreciated. The unique blend of natural and historical significance, as seen at Beaghmore Stone Circles, also leaves a lasting impression.
Yes, Lough Lark is a notable unique natural feature. This shallow dystrophic lake, situated in a peaty depression, is of special scientific interest due to a rare population of Tall Bog-sedge (Carex magellanica) thriving in its fen habitat. It offers a glimpse into the region's distinct ecological diversity.


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