Best mountain peaks around Bronllys are found within the Black Mountains, which are part of the Brecon Beacons National Park in Powys, Wales. Bronllys serves as a base for exploring the diverse mountains in its vicinity. The area features a range of peaks, each with distinct characteristics and attractions. These mountains offer varied experiences, from challenging climbs to scenic walks.
Last updated: May 6, 2026
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A fine viewpoint, but the cairn has gone (was getting a bit big).
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Brilliant viewpoint and lots of route choices that run you south through the Black Mountains
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In terms of height, Pen y Gadair Fawr plays second fiddle only to Waun Fach as the Black Mountains' second highest summit. However, where Waun Fach's top is broad and relatively uninspiring, Pen y Gadair Fawr's is a little more like a peak in character. The summit is at a junction of paths: head east for Chwarel y Fan and the Mynydd Du Forest, venture south to Pen Twyn Mawr, or stride northeast to Waun Fach.
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Great walk that's pretty accessible for most people to achieve, challenging but doable! The route I took incorporated Lord Hereford's Knob. I published it on Komoot here: https://www.komoot.com/tour/1576268965 And on my blog here (with extra commentary for my own entertainment!): https://weekendwalk.co.uk/route/hay-bluff-walk/
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Hay Bluff is a prominent hill at the northern tip of the Black Mountains, an extensive upland massif which straddles the border between south-east Wales and England. The mountain sits at the point where the main northeast-facing escarpment of the Black Mountains meets the northwest facing escarpment, the next peak to the west being Twmpa. The flat summit of Hay Bluff which is marked by a beautiful welsh dragon trig pillar at a height of 677 metres (2,221 ft) overlooks the middle Wye Valley and the book town of Hay-on-Wye.
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Pen Y Gadair Fawr has a big cairn on its summit at 800m. It's a subsidiary peak of Waun Fach but probably offers better views standing at the head of the Grwyne Fechan valley. Normally run as part of the excellent Waun Fach horseshoe from either Llanbedr or Crickhowell.
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Mynydd Troed has a high ridgeline summit with a trig point at 1,998 feet (609 m). It's a good run combined with Mynydd Llangorse and is also part of the Back Mountains Round.
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The most popular mountain peaks around Bronllys, highly appreciated by the komoot community, include Hay Bluff, known for its panoramic views over the Wye Valley, and Twmpa (Lord Hereford’s Knob), which offers extensive views and is easily accessible from the Gospel Pass. Another favorite is Mynydd Llangorse Summit, an outlier of the Black Mountains with accessible trails and broad views.
The highest mountain in the Black Mountains, which are part of the Brecon Beacons National Park near Bronllys, is Waun Fach. It stands at 811 meters (2,661 ft) and is characterized by a heavily eroded peat plateau, offering challenging walks.
Yes, Hay Bluff is a super place for family picnics and walks, with ample parking available. Its flat summit and accessible common make it suitable for families. Mynydd Llangorse also offers accessible trails popular with hikers of various levels.
For stunning vistas, Twmpa (Lord Hereford’s Knob) provides extensive views, especially when the cloud clears. Pen y Gadair Fawr, while a subsidiary peak of Waun Fach, is noted for potentially better views, particularly overlooking the Grwyne Fechan valley. Mynydd Llangorse Summit also offers glorious views on a clear day.
The terrain varies across the peaks. Waun Fach's summit is a heavily eroded peat plateau, while Pen y Gadair Fawr has a more 'peak-like' character. Hay Bluff features a flat summit. Generally, you can expect a mix of broad tops, ridgelines, and some challenging ascents, typical of the Black Mountains.
Yes, the area around Bronllys offers various trails for mountain biking and running. For mountain biking, you can explore routes like the Talgarth, Grwyne Fawr and Y Grib loop or the Gospel Pass – Login Brook Trail loop. Runners can enjoy trails such as the Blaen Grwyne Fawr – Rhos Dirion summit loop. You can find more details on these activities in the MTB Trails around Bronllys and Running Trails around Bronllys guides.
Yes, circular walks are popular in the region. The excellent Waun Fach horseshoe walk is a well-known option, often including Pen y Gadair Fawr. Additionally, Mynydd Troed Summit is often combined with Mynydd Llangorse as part of the Black Mountains Round, offering a rewarding circular experience.
Mynydd Troed, literally meaning 'Foot Mountain,' is a beautiful hill in the Black Mountains area. Its name comes from its appearance when viewed from the Allt Mawr ridge. Its summit, crowned by a trig point at 609m, offers nice views, especially towards Mynydd Llangorse, and it's freely accessible to walkers.
The mountain peaks around Bronllys offer rewarding experiences throughout the year. Spring and autumn provide pleasant temperatures and vibrant scenery, ideal for hiking. Summer is great for longer days and family outings. While winter hiking is possible, be prepared for colder conditions and potentially challenging terrain.
Yes, the area caters to various hiking abilities. For easier walks, routes like the Glasbury on the River Wye loop are available. Moderate trails include the Pwll y Wrach Waterfall loops from Talgarth. For more challenging hikes, you can explore routes that ascend peaks like Waun Fach. More details can be found in the Hiking around Bronllys guide.
Bronllys serves as an excellent base for exploring the mountains. Nearby villages like Llangors, with its large natural lake, and towns such as Talgarth and Hay-on-Wye, offer various options for accommodation, cafes, and pubs to refuel after your mountain adventures.
Hay Bluff is a very popular area for a variety of activities. It draws hikers, paragliders, and cyclists. Its accessible common and ample parking make it a favorite spot for family picnics and walks, with its flat summit marked by a Welsh dragon trig pillar.


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