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Blackwood

The 11 Most Amazing Peaks around Blackwood

Best mountain peaks around Blackwood offer a range of elevations and historical significance within South Wales. The region features hills and mountains that provide extensive views across the landscape, including the Severn Estuary. Many peaks are marked by trig points or historical structures, serving as notable landmarks. Blackwood's surrounding area is characterized by its natural beauty and varied terrain, making it suitable for outdoor exploration.

Best mountain peaks around Blackwood

  • The most popular mountain peaks is Twmbarlwm Hill and Iron Age hillfort, a historical site that offers views of the Severn Estuary. It features an Iron Age hill fort on its summit and is known for its history and folklore.
  • Another must-see spot is Mynydd Machen Summit, a viewpoint offering extensive views over Newport, Cardiff, and the Severn Estuary. Its summit is marked by a trig point and a mast, providing a clear destination for hikers.
  • Visitors also love Trig point at Mynydd Twyn-glas summit, a natural monument and sprawling mountain. This 472-meter-high peak offers a rolling plateau and steep slopes, many covered with conifer plantations.
  • Blackwood is known for its historical sites, viewpoints, and natural monuments. The area offers a variety of mountain peaks to see and explore, ranging from hills with ancient forts to higher summits with panoramic vistas.
  • The mountain peaks around Blackwood are appreciated by the komoot community, with 59 upvotes and 26 photos shared across the highlights.

Last updated: June 29, 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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Mynydd Rudry

Highlight • Viewpoint

Best way up on a bike - use the lower right hand route then go up the side of the mountain from in a SE direction. You can then choose the fun route down!

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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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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

Are there any easy mountain walks suitable for families around Blackwood?

Yes, several peaks offer accessible routes. Twmbarlwm Hill and Iron Age hillfort, while an intermediate hike, is a popular choice for its historical significance and views, making it a rewarding family outing. Its summit is 419 meters high, and the path is well-trodden.

What historical sites can I find on the mountain peaks near Blackwood?

The most prominent historical site is the Twmbarlwm Hill and Iron Age hillfort. This hill is rich in history and folklore, featuring an Iron Age hill fort on its summit. It's a well-known landmark offering extensive views across the region.

Where can I find panoramic views of the surrounding landscape from the peaks?

For extensive views, consider Mynydd Machen Summit, which offers glorious vistas over Newport, Cardiff, and the Severn Estuary. Twmbarlwm Hill also provides wonderful views of the Severn Estuary from its summit.

Are there specific parking areas for mountain peak hikes near Blackwood?

For Mynydd Machen Summit, there is plenty of free parking available in Machen next to the village hall and library, providing convenient access to the trails.

What are the highest mountain peaks in the Blackwood area?

Among the notable peaks, Y Domen Fawr Summit stands at 504 meters (1,653 feet), making it one of the higher points. Mynydd Twyn-glas summit is also significant at 472 meters.

What kind of natural features can I expect to see on the peaks around Blackwood?

The peaks offer diverse natural landscapes. Mynydd Twyn-glas features a rolling plateau and steep slopes, many covered with conifer plantations. You'll also find trig points marking summits, such as on Mynydd Machen Summit, which are common landmarks.

What outdoor activities can I do near these mountain peaks?

Beyond hiking the peaks, the Blackwood area offers a variety of outdoor activities. You can explore numerous cycling routes, including the 'Blackwood to Rhymney loop' or 'Hengoed Viaduct – Chartist Bridge loop'. There are also dedicated MTB trails and running trails, such as the 'Gelligroes Mill loop', providing options for different sports.

Are there any less crowded mountain trails or hidden gems in the Blackwood area?

While specific crowd levels vary, exploring peaks like Mynydd Rudry might offer a quieter experience, especially if you venture off the most popular paths. Its tips suggest it's a good spot for cycling, which can sometimes mean fewer hikers.

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

Visitors frequently appreciate the extensive views, the rich history, and the natural beauty of the area. The presence of Iron Age hill forts, like the one on Twmbarlwm Hill, combined with panoramic vistas from summits like Mynydd Machen, makes for a rewarding outdoor experience.

Can I find circular routes for hiking the mountain peaks near Blackwood?

Many of the trails leading to the peaks can be incorporated into circular routes. For example, the area around Mynydd Twyn-glas is described as a 'cracking local walk' that can lead over to Twmbarlwm, suggesting possibilities for creating varied loops.

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