Best natural monuments around Killowen Mountains are characterized by a landscape shaped by ancient geological processes, including features from the last ice age. The region, often associated with the broader Mourne Mountains, offers a diverse natural environment. Visitors can explore dramatic topography, valleys, and coastal formations. This area provides a tangible link to the region's ancient past and the forces that shaped its natural environment.
Last updated: October 16, 2026
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Silent Valley Reservoir, nestled in the Mourne Mountains, is a peaceful retreat surrounded by sweeping granite peaks and heathered slopes. Built in the early 20th century to supply water to Belfast and much of County Down, the reservoir combines striking engineering with natural beauty. Visitors can stroll along well-kept paths, admire the Victorian-style dam and impressive Mourne Wall, or simply enjoy the quiet atmosphere by the lakeshore.
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The well-maintained trails take you through impressive scenery, surrounded by the striking peaks of the Mournes. The view of the Mourne Wall, which stretches for 35 kilometers and connects 15 peaks, is particularly impressive. However, some sections can become slippery in wet weather, so caution is advised. A highlight is a visit to Ben Crom Reservoir, which can be reached via an extension of the route. Note that there is a fee to enter the park.
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The Long Woman's Grave car park is located right at the top of a gentle incline, offering you the perfect opportunity to let your gaze wander over the hilly landscape. Whether you are coming from the north or the south, the roads lead you through varied terrain that reveals new panoramas with every turn. It is worth taking a moment to read the story of the "Long Woman" at the monument – somehow this mystical atmosphere fits perfectly into the surroundings. On the way up, you will encounter hardly any traffic, which allows you to focus entirely on nature and your own line in the curves. The fresh breeze and the smell of damp grass give the ascent that little bit extra. However, the roads are not always in the best condition – some sections definitely require attention, especially after a rain shower. Once you reach the summit, there is a small rest area, ideal for catching your breath and refueling for the next stage. A perfect spot to take a short break before continuing with renewed momentum.
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The hike to the Cloghmór Stone feels like a journey through time. Over 10,000 years ago, the ice brought this massive granite block from Scotland here, and now, weighing an estimated 50 tons, it towers majestically over the landscape. But it's not just the geology that's fascinating - according to legend, it was the giant Finn McCool who threw this enormous stone over Carlingford Lough. To be honest, the legend is a much more exciting explanation, isn't it? Once you've reached the top, you'll not only be greeted by the imposing boulder, but also by a fantastic view of Carlingford Lough and the surrounding hills. It's the perfect place to pause for a moment, take in the vastness and enjoy the peace that this place exudes.
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Here it is worth climbing the mountain
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Wikipedia (Slieve Foy (Irish: Sliabh Feá), 2023-12-02): https://en.m.wikipedia.org/wiki/Slieve_Foy Wikipedia (Lists of mountains in Ireland, 2023-12-02): https://en.m.wikipedia.org/wiki/Lists_of_mountains_in_Ireland MountainViews.ie (Slieve Foye, 2023-12-02): https://mountainviews.ie/summit/298/ TheIrishRoadtrip (“A Guide To The Slieve Foye Loop: Trail, Parking + Handy Info”, 2023-12-02): https://www.theirishroadtrip.com/slieve-foye-loop/
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A beautiful round stone, there is a legend about it but unfortunately we could not find out
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A beautiful secluded clearing in the Oak forest. The message on the bench is pretty apt for any trail runners who have slogged up the hill!
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The region is home to several notable natural monuments. Among them is the impressive Cloughmore Stone, a massive glacial erratic overlooking the sea. Another significant site is Slieve Foye Summit, offering panoramic views across Carlingford Lough to the Mourne Mountains. You can also visit the serene Silent Valley Reservoir, which combines natural beauty with impressive engineering.
Yes, the Silent Valley Reservoir is considered family-friendly, offering well-kept paths and a peaceful environment. Another great option is Fiddlers Green, a beautiful and somewhat hidden forest spot perfect for a picnic.
The Killowen Mountains area is characterized by a landscape shaped by ancient geological processes, particularly from the last ice age. You'll encounter dramatic topography, valleys, coastal formations, and significant glacial erratics like the Cloughmore Stone, which was deposited over 10,000 years ago.
While primarily known for natural beauty, the region does have points of historical interest. The Long Woman's Grave Memorial is a historical site with a mystical atmosphere and offers fantastic views. The Silent Valley Reservoir also features the impressive Victorian-style dam and parts of the Mourne Wall, which has its own historical significance.
The area around Killowen Mountains offers various outdoor activities. You can find numerous hiking trails, including easy options like the Cloughmore Trail, and more challenging routes around the summits. For cyclists, there are several road cycling routes available. You can explore more options on the Hiking around Killowen Mountains and Road Cycling Routes around Killowen Mountains guide pages.
Yes, there are several easy hiking trails. For example, the Cloughmore Trail is an easy route that takes you to the Cloughmore Stone. Other easy options include loops around the Cloughmore Stone and trails within Kilbroney Park leading to spots like Fiddlers Green. Find more details on the Easy hikes around Killowen Mountains guide page.
Many natural monuments double as excellent viewpoints. The Cloughmore Stone offers great views over Carlingford Lough. Slieve Foye Summit provides extensive panoramas of the Lough and the Mourne Mountains. Additionally, the Long Woman's Grave Memorial car park also boasts fantastic views of the rolling landscape.
Yes, for some locations, parking is available. For instance, there is a car park at the Long Woman's Grave Memorial. For other natural monuments, parking may be found at nearby trailheads or visitor centers, such as those associated with Kilbroney Park for access to Fiddlers Green.
Visitors frequently highlight the breathtaking panoramic views, especially from spots like the Cloughmore Stone and Slieve Foye Summit. The unique geological formations, such as the glacial erratic, and the peaceful, tranquil atmosphere of places like the Silent Valley Reservoir are also highly appreciated.
While specific rules can vary, many outdoor areas in the Killowen Mountains, including trails leading to natural monuments, are generally dog-friendly. Always ensure dogs are kept on a lead, especially in areas with livestock or wildlife, and remember to clean up after them. For example, Fiddlers Green in Kilbroney Park has facilities like dog poop bins.
The Killowen Mountains can be enjoyed year-round, but each season offers a different experience. Spring and autumn provide pleasant temperatures for hiking and vibrant scenery. Summer is ideal for longer days and outdoor activities, while winter can offer dramatic, stark landscapes, though some paths might be more challenging due to weather conditions.
For additional information on monuments and heritage sites in the broader Mourne Gullion Strangford region, you can visit the official tourism website: visitmournegullionstrangford.com.


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