4.2
(78)
1,256
riders
34
rides
Mountain biking around Blaenrheidol offers a network of trails through varied Welsh landscapes. The area is characterized by rolling hills, dense woodlands, and the presence of reservoirs like Llyn Syfydrin and Nant-Y-Moch. Elevation changes are common, with routes featuring significant climbs and descents. The terrain provides a mix of forest paths, open tracks, and purpose-built mountain bike trails.
Last updated: May 11, 2026
4.3
(10)
291
riders
17.7km
02:03
460m
460m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
4.3
(13)
262
riders
34.8km
03:33
770m
770m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

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4.4
(16)
209
riders
10.3km
01:12
230m
230m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
5.0
(3)
68
riders
5.33km
00:35
100m
100m
Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.
4.0
(7)
92
riders
25.1km
02:04
420m
420m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Nant y Moch Reservoir is a significant water reservoir located in the Cambrian Mountains of Wales, specifically in the county of Ceredigion. It was constructed in the late 20th century and is primarily used for water supply. The reservoir is situated near the village of Llanidloes and is part of the larger infrastructure managed by Welsh Water. The area surrounding Nant y Moch Reservoir is known for its natural beauty, featuring rolling hills, moorland, and diverse wildlife. It is a popular destination for outdoor activities such as walking, birdwatching, and fishing. The reservoir itself is also used for recreational purposes, and there are walking trails around its perimeter that offer stunning views of the water and the surrounding landscape. In terms of ecology, the reservoir and its surroundings support various plant and animal species, making it an important area for conservation as well as recreation. The combination of natural beauty and recreational opportunities makes Nant y Moch a valued spot in the Welsh countryside.
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A great place to ride MTB or gravel bike. Be aware that the weather can change quickly
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A fun, challenging track on a gravel bike - easy going on an MTB
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Blaenrheidol offers a diverse range of mountain bike trails. Out of 34 total routes, you'll find 2 easy trails, 27 moderate trails, and 5 difficult trails. This mix ensures options for various skill levels, from those seeking a gentle ride to experienced riders looking for a challenge.
Yes, Blaenrheidol has options for beginners and families. There are 2 easy mountain bike trails available. For example, the Melindwr blue trail — Bwlch Nant yr Arian is a moderate 3.3-mile (5.3 km) route that provides a good introduction to the area's terrain without being overly demanding.
Trail lengths in Blaenrheidol vary significantly. You can find shorter routes like the Melindwr blue trail — Bwlch Nant yr Arian at 3.3 miles (5.3 km), or longer, more challenging rides such as the Syfydrin black trail — Bwlch Nant yr Arian MTB trails, which spans 21.6 miles (34.8 km).
Many of the mountain bike trails in Blaenrheidol are designed as loops or circular routes, allowing you to start and finish at the same point. An example is the Rock Slab Descents – Llyn Syfydrin loop from Nant-Y-Moch Reservoir Dam, a 15.6-mile (25.1 km) moderate trail.
The terrain around Blaenrheidol is characterized by rolling hills, dense woodlands, and the presence of reservoirs like Llyn Syfydrin and Nant-Y-Moch. You'll encounter a mix of forest paths, open tracks, and purpose-built mountain bike trails, often with significant climbs and descents through upland areas.
While riding, you can enjoy views of reservoirs and woodlands. For specific points of interest, consider routes that pass near highlights such as Pen y Garn Summit Trig Point for panoramic views, or the dramatic Devil's Bridge and Waterfalls. The area also features other waterfalls like Hafren Cascades Boardwalk and Blaen Hafren Falls.
The mountain bike trails in Blaenrheidol are highly rated by the komoot community, with an average score of 4.2 stars from over 70 reviews. Riders frequently praise the varied terrain, the scenic forest sections, and the challenging climbs and descents that define the region's routes.
Blaenrheidol's mountain biking is closely associated with the Bwlch Nant yr Arian forest, which is home to several well-known trails. Routes like the Syfydrin black trail and Summit red trail are part of the Bwlch Nant yr Arian MTB trails network, offering similar characteristics of forest riding, reservoir views, and undulating hills.
While mountain biking is possible year-round, the spring and autumn months generally offer the most pleasant conditions with milder temperatures and vibrant scenery. Summers can be warm, and winters may bring colder, wetter weather, potentially affecting trail conditions.
Yes, the Blaenrheidol area is known for its reservoirs. The Rock Slab Descents – Llyn Syfydrin loop from Nant-Y-Moch Reservoir Dam is a prime example, offering views of Llyn Syfydrin and starting near the Nant-Y-Moch Reservoir. Many routes in the region incorporate these scenic water features.
The dense woodlands and open upland areas around Blaenrheidol provide habitats for various wildlife. While specific sightings are never guaranteed, riders often report seeing local birdlife, including red kites which are prevalent in the wider Ceredigion area, and other woodland creatures.


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