4.6
(5)
56
riders
8
rides
Mountain biking around Cwmamman offers diverse landscapes, characterized by re-landscaped natural features and verdant hillsides. The region, nestled in the Amman Valley, features extensive woodland blocks and the River Amman. Its location at the foot of the Black Mountain and proximity to Bannau Brycheiniog National Park provides access to rugged terrain and panoramic views. This varied terrain makes Cwmamman a compelling destination for mountain bikers.
Last updated: May 7, 2026
3
riders
52.8km
04:54
1,390m
1,390m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.
2
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

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2
riders
44.8km
03:01
690m
690m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
5
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
5
riders
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
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A lovely little cafe for a quick pit stop en route
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Doable on a gravel bike in the dry. Foot down once Lol.
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The Black Mountain Category 3 Climb from Brynaman is a 5.5km climb with a total ascent of 312m, topping out at 495m. The average gradient is 5.8% with the steepest 100m section reaching 8.4%. Grind out the best gear you can on the consistent slope and gradually as you rise above the valley towards the plateau you are rewarded with some of the best scenery in Wales. You've earnt the descent.
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You can enjoy lovely views of the town and Afon Valley from this high up viewpoint on Pontrhydyfen Viaduct. The viaduct itself was build in 1898 by the Port Talbot Railway.
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Herbert’s Quarry is part of the Black Mountain and Mynydd Myddfai Registered Landscape of Outstanding Historic Interest in Wales. Unlike in other lime producing areas where canals and tramroads could be built, the industry at Herbert’s Quarry was served solely by road transport. The lime trade was a factor in the development of Turnpike roads, and the network of tracks and roads over the mountain is closely associated with the activity at Herbert’s Quarry. As you walk through the site you are taking a journey through time, and walking in the footsteps of many hundreds and thousands of people before you, people whose hard work, sweat and drudgery shaped this landscape and left a rich industrial legacy.
2
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Check out the Afan Valley Bike Shed - great helpful staff and they sell a selection of souvenirs - tees, hoodies, mud guards & stem caps (always good to support the local shop).
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There are 8 mountain bike trails around Cwmamman listed on komoot. These routes offer a variety of experiences, from moderate rides to challenging, technical routes.
The terrain around Cwmamman is diverse, featuring re-landscaped natural features and verdant hillsides. You'll find extensive woodland blocks, particularly along the Afon Amman, and rugged terrain as the region is at the foot of the Black Mountain and close to Bannau Brycheiniog National Park. This mix provides varied and scenic riding.
The trails around Cwmamman cater to various skill levels. You'll find 1 easy route, 5 moderate routes, and 2 difficult routes. Some routes, especially those in the Black Mountain area, require very good fitness and advanced riding skills, with portions potentially requiring you to push your bike.
The mountain bike trails in Cwmamman are highly rated by the komoot community, with an average score of 4.6 stars from over 5 reviews. Riders often praise the varied terrain, the scenic views, and the challenging nature of some of the routes, especially those venturing into Bannau Brycheiniog National Park.
Yes, there is at least one easy mountain bike route available, which can be suitable for families or those looking for a less strenuous ride. The re-landscaped hillsides and river trails also offer accessible green spaces for recreation.
Many of the mountain bike routes around Cwmamman are designed as loops. For example, you can explore the Black Mountain loop from Brynamman or the Herbert's Quarry – View of Carreg Cennen Castle loop from Gwaun-Cae-Gurwen, both offering a full circular experience.
While riding, you'll encounter verdant hillsides, extensive woodlands, and the River Amman. The region's proximity to the Black Mountain and Bannau Brycheiniog National Park also means access to rugged terrain and panoramic views. You might also pass by the Lower Lliw Reservoir on some routes.
Yes, the area is rich in history. The Herbert's Quarry – View of Carreg Cennen Castle loop from Gwaun-Cae-Gurwen offers views of the impressive Carreg Cennen Castle. Other nearby historical sites include Dinefwr Castle and Newton House.
Cwmamman's re-landscaped hillsides and verdant landscapes make it appealing for outdoor activities throughout much of the year. Spring and autumn offer pleasant temperatures and beautiful scenery, while summer provides longer daylight hours. Always check local weather conditions before heading out, especially for routes in higher elevations.
Absolutely. Cwmamman offers 2 difficult mountain bike routes, including the challenging Black Mountain loop from Brynamman. This route features significant elevation gain and rugged terrain within Bannau Brycheiniog National Park, demanding good fitness and advanced riding skills.
While specific establishments aren't detailed for every route, the wider Carmarthenshire county offers various leisure facilities. Some routes, like the Lower Lliw Reservoir and Café – Mynydd Pysgodlyn loop from Mynydd Garn-fach, explicitly mention a café along the way, providing a convenient stop for refreshments.
Yes, the region's location at the foot of the Black Mountain and its proximity to Bannau Brycheiniog National Park means many trails offer stunning panoramic views. The Black Mountain loop from Brynamman is particularly noted for its rugged terrain and expansive vistas.


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