5.0
(6)
98
riders
9
rides
Gravel biking around Machynlleth offers diverse terrain within the Dyfi Valley, situated on the edge of Snowdonia (Eryri) and the Cambrian Mountains. This area is part of the UNESCO-designated Dyfi Biosphere Reserve, characterized by a landscape of mountains, valleys, and forests. The region features established gravel routes, often utilizing former mountain biking trails, and is known for its slate tracks and rocky terrain.
Last updated: April 25, 2026
5.0
(1)
10
riders
51.4km
04:59
960m
960m
Embark on the Nant y Moch loop from Machynlleth, a difficult gravel biking adventure spanning 31.9 miles (51.4 km) with a significant 3164 feet (964 metres) of elevation gain. This…
5.0
(1)
8
riders
48.8km
04:45
930m
930m
Embark on the Mach 1, 2, and 3 Loop, a difficult gravel biking adventure spanning 30.4 miles (48.8 km) with a significant 3067 feet (935 metres) of elevation gain. This…

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5.0
(1)
41
riders
43.7km
03:41
960m
960m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(2)
15
riders
69.5km
05:09
1,490m
1,490m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
20.1km
01:57
590m
590m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Machynlleth
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If you smile sweetly you don’t have to pay. There are also public toilets just after this.
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First, a somewhat adventurous ride on the single track to the parking lot, which costs £5. The easy loop around the lake is very beautiful and relaxing – the sheep roam freely, but they keep their distance. Dogs must be on a leash, of course, but that's not a problem. Enjoy it – and if you're up for more, go for a longer loop. There are a few tables and benches above the parking lot for your picnic. You won't find any litter baskets, so you'll have to take them with you – which is perfectly fine, as it's a nature reserve. Highly recommended.
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Card payments are accepted. The bridge is open to cyclists and walkers 24/7. There is a slot for the toll in the door outside of operating hours.
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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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They do take card payments so that’s been an update but it’s not open 24 hrs
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Make sure you have cash for the toll - no card payment here😉
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A lovely track to ride along the estuary. Suitable for any bike
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Great mountain road, rideable on a gravel, comfortable on an MTB
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Machynlleth offers a diverse network of over 10 gravel bike trails, catering to various skill levels. While many are challenging, they all provide stunning views of the Dyfi Valley, Snowdonia (Eryri), and the Cambrian Mountains.
You can expect a varied landscape of mountains, valleys, and forests. The region is particularly known for its unique slate tracks and rocky terrain, which often means good riding conditions year-round, as it tends to be rocky rather than muddy. You'll encounter everything from 'balcony' gravel roads to thrilling forested descents.
The gravel routes around Machynlleth are generally considered moderate to difficult. Out of the 10 routes listed, 8 are rated as difficult, requiring good fitness and potentially some bike-pushing on challenging sections. There are also 2 moderate routes available for those looking for a slightly less strenuous ride.
Yes, many of the prominent gravel routes in Machynlleth are designed as loops. For example, the Mach 1, 2, and 3 Loop and the Nant y Moch loop from Machynlleth — Cambrian Mountains are both popular circular options, offering extensive exploration of the region's landscapes.
Absolutely. Machynlleth serves as an excellent starting point for significant bikepacking adventures. It's a key location for routes like the 'Traws Eryri — Bikepacking Snowdonia from Machynlleth to Conwy'. The historic Sarn Helen route also passes through the area, offering another challenging long-distance option with substantial climbs.
Many trails offer stunning views of the Dyfi Valley and the surrounding mountains. You might pass by landmarks such as the Machynlleth Clock Tower, or experience the unique terrain of the Tony the Tiger Trail. The Nant y Moch loop, for instance, features a spectacular 'balcony' gravel road and a rocky doubletrack around the Nant-y-Moch reservoir.
Beyond the trails, Machynlleth is nestled within the UNESCO-designated Dyfi Biosphere Reserve, offering rich natural beauty. You can explore the expansive Coedwig Dyfi Forest, or visit the Corris village. The area is also close to the Cambrian Mountains and Snowdonia National Park (Eryri), providing a dramatic backdrop to your rides.
The area is highly rated by the komoot community, with an average score of 5.0 stars from over 6 reviews. Gravel bikers frequently praise the expansive mountain and valley views, the thrilling forested descents, and the unique slate tracks that define the riding experience in the Dyfi Valley.
While many of the listed routes are challenging, the Coedwig Dyfi Forest offers multi-use trails, including dirt and gravel roads like the 5 km 'Forest Road', which might be more suitable for families or those seeking a less strenuous ride. These areas provide a gentler introduction to gravel biking amidst beautiful woodland scenery.
Many routes start directly from Machynlleth town, which offers various parking options. Other routes, such as the Black Road Gravel Pass – Cregennan Lakes loop, begin from nearby villages like Esgairgeiliog Ceinws, where local parking may be available. It's advisable to check specific starting points for detailed parking information.
Machynlleth town itself, being a vibrant base for outdoor activities, offers various cafes, pubs, and eateries where you can refuel before or after your ride. While specific establishments directly on the trails are less common, the town provides ample options for refreshments and meals.
Machynlleth's gravel trails, characterized by rocky rather than muddy terrain, generally offer good riding conditions year-round. However, for the most pleasant experience with expansive views and milder weather, spring and autumn are often ideal. Summer can also be excellent, though be prepared for potentially warmer temperatures and more visitors.


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