4.1
(8)
54
riders
11
rides
Mountain bike trails around Quarter Bach are situated at the foot of the Black Mountain, within the Brecon Beacons National Park. The region features rugged terrain, open moorland, and significant elevation changes, providing diverse landscapes for mountain biking. Riders can expect deep-sided valleys, river crossings, and expansive open hillsides. The Amman Valley also offers scenic backdrops for routes.
Last updated: August 3, 2026
3.0
(1)
1
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4
riders
52.8km
04:54
1,390m
1,390m
Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary.

Sign up for free
2.5
(2)
5
riders
37.5km
03:23
940m
940m
Hard mountain bike ride. Very good fitness required. Suitable for all skill levels.
5.0
(1)
11
riders
72.8km
03:56
330m
330m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
2
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
Lots of wide pavement around the water, wasn't too busy on a Sunday afternoon but I imagine it gets rammed with people sometimes.
0
0
Great road for cycling up/down. The surface has degraded a bit over recent years, but still a great climb/descent.
0
0
Interesting ruins of a time gone by, with spectacular views over the Carmarthen countryside
0
0
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.
0
0
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
0
Quarter Bach offers a selection of 12 mountain bike trails, catering to various skill levels, from moderate paths to challenging loops.
Yes, for those seeking a less strenuous ride, the Amman Valley Riverside Path (Sustrans Route 437) provides a traffic-free, 7-mile route ideal for families or those preferring a relaxed pace. While most komoot routes are moderate to difficult, there is 1 easy trail available.
The trails in Quarter Bach, situated at the foot of the Black Mountain, feature rugged mountainous terrain, open moorland, and significant elevation changes. You'll encounter deep-sided valleys, river crossings, and expansive open hillsides, with some routes navigating through forest tracks and lakeside paths.
For experienced riders seeking a demanding route, the Black Mountain loop from Brynamman is a 52.8 km trail with significant elevation gain. Another challenging option is the Banwen Gwys & Swansea Valley loop from Dan-yr-Ogof, which is 26.5 km long and leads through the Bannau Brycheiniog National Park.
Yes, the region offers breathtaking panoramic views across the Brecon Beacons National Park. You can find highlights such as View of the Central Beacons from the Cattle Grid. The Herbert's Quarry – View of Carreg Cennen Castle loop from Gwaun-Cae-Gurwen also provides views of the surrounding mountains and the historic Carreg Cennen Castle.
Yes, the area around Quarter Bach features several beautiful waterfalls. You can explore highlights like Henrhyd Falls, Nant Tawe Fechan Waterfalls, and a Waterfall Along the Boardwalk in the Bannau Brycheiniog National Park.
The mountain bike routes in Quarter Bach are highly rated by the komoot community, with an average score of 3.8 stars from over 9 reviews. More than 60 mountain bikers have used komoot to explore the varied terrain, often praising the rugged mountainous landscapes and scenic river valleys.
The Black Mountain area, including Quarter Bach, can be enjoyed throughout the year, but conditions vary seasonally. Spring and autumn often offer pleasant temperatures and vibrant scenery. During winter, be prepared for potentially challenging conditions due to snow or ice at higher elevations.
Yes, there are several moderate loops. The Herbert's Quarry – View of Carreg Cennen Castle loop from Gwaun-Cae-Gurwen is a popular 32.8 km moderate path. Another option is the Footbridge Over Afon Llwchwr loop from Llandybie, which covers 45.3 km.
Quarter Bach is nestled in Carmarthenshire, Wales. While specific public transport options directly to trailheads may be limited, main settlements like Upper Brynamman and Ammanford are generally served by local bus routes. It's advisable to check local transport schedules for the most up-to-date information when planning your trip.
Parking is typically available in or near the main settlements within Quarter Bach, such as Upper Brynamman, which serves as a starting point for several trails. Specific parking details for individual trailheads may vary, so it's recommended to check route descriptions on komoot for precise information.
Yes, for those looking for longer rides, the Swansea Canal Towpath – Swansea Bay loop from Ystradgynlais is a substantial 72.2 km route, offering a different kind of experience with less elevation gain compared to the mountain loops.


Browse the best MTB trails in other regions.