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Blaenau Gwent

Llanhilleth

The 10 Most Amazing Peaks around Llanhilleth

Best mountain peaks around Llanhilleth include prominent hills and ranges in the South Wales region, offering diverse landscapes and historical significance. The area features notable hills such as Twmbarlwm Hill and Mynydd Machen, which provide extensive views. Further afield, the Black Mountains, part of the Brecon Beacons National Park, present rugged terrain and numerous summits. These locations offer opportunities for exploring natural features and enjoying mountain views.

Best mountain peaks around Llanhilleth

  • The most popular mountain peaks is Twmbarlwm Hill and Iron Age hillfort, a historical site that stands at 419 meters (1,375 feet) and features the remains of an ancient Iron Age hillfort. From its summit, visitors can experience panoramic views, including the Severn Estuary.
  • Another must-see spot is Mynydd Machen Summit, a viewpoint offering views over Newport, Cardiff, and the Severn Estuary. This 362-meter (1,188-foot) hill provides rewarding ascents and broad South Wales landscapes.
  • Visitors also love Trig point at Mynydd Twyn-glas summit, a natural monument with a trig point at 472 meters. This sprawling mountain offers extensive views and is appreciated for its local walking opportunities.
  • Llanhilleth is known for its hills, summits, and historical sites. The region offers a variety of mountain peaks to see and explore, ranging from prominent local hills to higher peaks within nearby mountain ranges.
  • The mountain peaks around Llanhilleth are appreciated by the komoot community, with 59 upvotes and 26 photos shared by visitors.

Last updated: June 20, 2026

Twmbarlwm Hill and Iron Age hillfort

Highlight • Historical Site

Twmbarlwm is a 1,375 foot (419 m) hill that is rich in beauty, history and folklore. From the summit, you are afforded wonderful views of the Severn Estuary. There is an Iron Age hill fort on the summit, too.

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Mynydd Machen Summit

Highlight • Viewpoint

Mynydd Machen is a 1,188-foot (362 m) hill in South Wales which affords glorious views over Newport, Cardiff, Steep Holm, Flat Holm, Brean Down, and the Severn Estuary. The summit is marked by the rock 10 feet (3 m) northwest of the trig point.

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Trig point at Mynydd Twyn-glas summit

Highlight • Natural Monument

Mynydd Twyn-glas is a sprawling 472-metre-high mountain extending into Caerphilly and Torfaen county boroughs in South Wales. It lies southwest of Pontypool, west of Cwmbran and east of Newbridge and taking the form of a rolling plateau the margins of which are defined by steep slopes, many of which are cloaked with conifer plantations. A broad shoulder extending south from the summit is known as Mynydd Maen whilst to the north is Mynydd Llwyd. The thickly afforested northern slopes of the hill drop down steeply into Cwm y Glyn. It is a UK listed Marilyn.

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Y Domen Fawr Summit

Highlight • Viewpoint

Y Domen Fawr 504m P135 (1653ft)
Welsh Dewey and Dodd summit

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Coity Mountain Summit

Highlight • Summit

Coity Mountain (also spelled Coety Mountain, Welsh: Mynydd Coety) is a flat-topped mountain in the South Wales Valleys, between Blaenavon and Abertillery. The highest points of both Torfaen and Blaenau Gwent unitary authorities are at the summit of Coity Mountain. The summit is also known as Twyn Ffynhonnau Goerion. Some 2 km (1 mi) to the southeast lies a major subsidiary top of the hill, Mynydd Varteg Fawr (549m) at the southeastern end of whose broad ridge is a trig point at 544m. A few hundred metres to the southeast of this summit is a memorial known as the "Dog Stone" which commemorates Carlo the Red Setter, a dog shot accidentally by his master while hunting on the 12 August 1864. It has an unmarked summit and is a UK listed Marilyn.

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Popular around Llanhilleth

Road Cycling Routes around Llanhilleth

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Tips from the Community

Peter Turner
July 9, 2025, Mynydd Machen Summit

Nice ascent from Crosskeys, but watch out for very overgrown pathways on the Machen side. Great views from the top!

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Twmbarlwm is a prominent hill and archaeological site located near the town of Cwmcarn in South Wales. It is part of the Caerphilly County Borough and is known for both its natural beauty and historical significance. Here are some key points about Twmbarlwm: Key Features: Hillfort: Twmbarlwm is home to the remains of an ancient hillfort, dating back to the Iron Age. The fortifications, which include earthworks and ramparts, suggest it was a significant settlement during that period. Celtic Connections: The name "Twmbarlwm" is thought to derive from Welsh, with "Twm" being a diminutive of "Tudur" and "barlwm" referring to a mound or hill. The site is associated with Celtic history and mythology. Natural Beauty: The hill offers stunning views of the surrounding landscape, including the nearby valleys and mountains. It is a popular destination for walkers, hikers, and outdoor enthusiasts. Archaeological Significance: Twmbarlwm has been the subject of various archaeological studies, which have revealed insights into ancient settlement patterns, defensive strategies, and daily life in prehistoric Wales. Access: The hill is accessible via footpaths, making it a popular spot for local residents and visitors. There are several trails that lead to the summit, offering a rewarding hike. Cultural Heritage: The site is connected to local folklore and legends, contributing to its cultural significance in the region. Visiting: If you plan to visit Twmbarlwm, it’s a good idea to check local resources or hiking guides for specific trails and information about the area. The site is a great way to experience the natural beauty and historical richness of South Wales.

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Our Ronnie beat me to it. For any readers information, Ronnie is a phenomenal peak bagger, and is literally hiking everything in the UK that has an uphill slope. I will join him on the rounds of all the 100m prominent peaks of the UK. Y Domen Fawr is one of those peaks. Note: Y Domen Fawr, literally means a big heap or mound.

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Y Domen Fawr 504m P135 (1653ft) Welsh Dewey and Dodd summit

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A small summit above Risca. Known locally as the "Twmp" (the hump), the pimple or the nipple, due to the shape of the mound on the summit.

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Cracking local walk, gain height for amazing views and walk over to twmbarlwm

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plenty of free parking in Machen next to the village hall and library

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Twmbarlwm is a 1,375 foot (419 m) hill that is rich in beauty, history and folklore. From the summit, you are afforded wonderful views of the Severn Estuary. There is an Iron Age hill fort on the summit, too.

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Frequently Asked Questions

What are some of the most notable mountain peaks and hills around Llanhilleth?

The region around Llanhilleth features several prominent hills and mountain ranges. Key highlights include Twmbarlwm Hill and Iron Age hillfort, known for its historical significance and panoramic views, and Mynydd Machen Summit, offering expansive vistas. Further afield, the majestic Black Mountains, part of the Brecon Beacons National Park, present rugged terrain with peaks like Waun Fach and Pen y Gadair Fawr.

Are there any historical sites among the mountain peaks near Llanhilleth?

Yes, the area is rich in history. Twmbarlwm Hill is home to the remains of an ancient Iron Age hillfort, complete with earthworks and ramparts. The Black Mountains also feature Iron Age hill forts, such as Crug Hywel (Table Mountain), and prehistoric standing stones like Maen Llwyd.

What kind of views can I expect from the mountain peaks in the Llanhilleth area?

Visitors can expect stunning panoramic views. From Twmbarlwm Hill, you can see the Severn Estuary. Mynydd Machen Summit offers glorious views over Newport, Cardiff, and the Severn Estuary, as well as the islands of Steep Holm and Flat Holm. The Black Mountains provide extensive vistas of their unique ridges and valleys.

Are there family-friendly walking options on the peaks around Llanhilleth?

While some peaks offer challenging ascents, many areas provide accessible routes suitable for families. For instance, the general walking opportunities around Mynydd Twyn-glas summit are appreciated locally. For more specific family-friendly routes, you can explore the 'Hiking around Llanhilleth' guide, which includes easy-grade options like a 5.3 km hiking loop from Aberbeeg.

What is the best time of year to visit the mountain peaks near Llanhilleth?

The best time to visit depends on your preference. The Black Mountains, for example, transform from green in summer to russet in autumn and brilliant white with snow in winter, offering diverse scenic experiences throughout the year. Generally, spring and autumn provide pleasant temperatures for hiking, while summer offers longer daylight hours.

What outdoor activities can I do near these mountain peaks?

Beyond hiking, the area around Llanhilleth offers a variety of outdoor activities. You can find numerous running trails, including moderate options like the 'Cows Grazing in a Field loop from Caerphilly County Borough'. Cycling is also popular, with routes such as the 'Big Pit Valley Cycle Path loop from Abertillery'. For more details, refer to the Running Trails around Llanhilleth, Hiking around Llanhilleth, and Cycling around Llanhilleth guides.

Are there specific hiking trails near the mountain peaks around Llanhilleth?

Yes, there are many hiking trails. For example, the 'Hiking around Llanhilleth' guide lists routes like the 'Tyleri Valley Heights – Serene Pond loop from Abertillery' (moderate) and a 'Hiking loop from Aberbeeg' (easy). These trails allow you to explore the diverse landscapes surrounding the peaks. You can find more options in the Hiking around Llanhilleth guide.

Where can I find parking when visiting the mountain peaks?

Parking availability varies by location. For Mynydd Machen Summit, there is plenty of free parking available in Machen next to the village hall and library, making it convenient for visitors.

What are some of the higher peaks in the region near Llanhilleth?

While local hills like Twmbarlwm are prominent, for higher elevations, you'll look towards the Black Mountains. The highest summit in this range is Waun Fach, reaching 811 meters (2,661 ft). Other significant peaks include Pen y Gadair Fawr at 800 meters (2,625 ft), and Mynydd Carn-y-cefn Trig Point, which reaches 550 meters (1,800 ft).

Are the mountain peaks around Llanhilleth suitable for dog walking?

Many of the walking trails and open spaces around the peaks are suitable for dog walking, offering varied terrain for you and your pet to enjoy. It's always advisable to keep dogs under control, especially near livestock, and to check local signage for any specific restrictions.

What do visitors enjoy most about the mountain peaks around Llanhilleth?

Visitors particularly enjoy the extensive panoramic views, the rich historical significance of sites like the Iron Age hillfort on Twmbarlwm Hill, and the rewarding ascents that lead to these scenic spots. The diverse landscapes, from local hills to the rugged Black Mountains, also contribute to a fulfilling outdoor experience.

Can I find amenities like cafes or pubs near the mountain trails?

While specific amenities directly on the mountain trails may be limited, you can often find cafes and pubs in the villages and towns surrounding the peaks, such as Machen or those near the Black Mountains. These establishments provide opportunities for refreshments and meals before or after your outdoor adventures.

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See even more amazing summits around Llanhilleth with these guides:

BrynmawrTredegarNantyglo And BlainaBeaufortGarnlydanBadmintonEbbw Vale NorthRassauCwmEbbw Vale SouthAbertillery

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