Thrislington National Nature Reserve
Thrislington National Nature Reserve
3.3
(3)
102
riders
10
rides
Gravel biking in Thrislington National Nature Reserve offers a unique experience on the western edge of the Durham Magnesian Limestone Plateau, approximately 10 km south of Durham City. The reserve is characterized by its rare Magnesian Limestone grassland, diverse ecosystems, and a network of trails suitable for exploration. Riders can navigate a mix of challenging climbs and scenic paths, often incorporating old railway lines converted into traffic-free routes. The terrain features gentle hills and river valleys, providing varied landscapes for…
Last updated: May 6, 2026
7
riders
51.3km
03:04
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
6
riders
40.5km
02:23
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(1)
32
riders
45.3km
02:46
430m
430m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.5
(2)
55
riders
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Thrislington National Nature Reserve
Hard packed former railway, now a popular walkway for cyclists and walkers. A good route to Bishop Auckland and beyond. Can get busy on weekends.
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From Hownsgill Viaduct you can see for miles around whilst standing on the old railway bridge. The actual bridge has elevated side wall protector barriers, this to stop anything going over the side, the drop below is considerably higher than a house. There were high winds on the bridge on the day I rode over, the barriers also protect from the weather. You get very good views over both sides of the bridge.
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Viaduct is now open, the paving is slightly bumpy though!
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Great off-road route with an extremely gentle slope in a westerly direction!
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Croxdale Viaduct, which takes the East Coast Main Line over the River Wear near Croxdale and Sunderland Bridge, is an impressive 11-arch span built by the North Eastern Railway in 1872.
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Willington is a former mining town based on the Brandon to Bishop Auckland disused railway, which use to serve the coal mining industry. It's colliery closed in 1967. There are some local shops and plenty of benches, so serves as a good rest stop.
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Thrislington National Nature Reserve offers a selection of 12 gravel bike trails. These routes cater to various skill levels, including 1 easy, 10 moderate, and 1 difficult option, ensuring there's something for every rider.
The trails in Thrislington National Nature Reserve feature a mix of terrain, including sections of former railway lines converted into paths, river valleys, and areas within the unique Magnesian Limestone grassland. You'll encounter gentle hills and varied surfaces, with some routes requiring good fitness and potentially advanced riding skills.
Yes, for experienced riders seeking a challenge, the View of Lanchester Valley – Consett to Waskerley Cycleway loop from Spennymoor is a difficult 64.6 km route with significant elevation gain, offering expansive views across the landscape.
While many routes are moderate, the reserve's network of former railway lines often provides smoother, traffic-free sections that can be suitable for families. Always check individual route details for specific difficulty and surface information to ensure it aligns with your family's abilities.
Yes, dogs are generally permitted on public and concessionary paths within the reserve. However, due to the presence of grazing livestock, especially in winter, it is advised to keep dogs on leads at all times to ensure their safety and that of the animals.
Thrislington National Nature Reserve is renowned for its rare Magnesian Limestone grassland, which supports a diverse array of wildflowers, particularly vibrant in season. You might spot unique flora like blue moor-grass and small scabious, along with various butterfly species such as Marbled White and Common Blue. The reserve is also home to rare invertebrates like the least minor moth and the common glow-worm.
Yes, many of the gravel bike routes in the area are designed as loops. For example, the National Cycle Route – Croxdale Viaduct loop from Spennymoor is a moderate 51.4 km circular path that incorporates sections of the National Cycle Route and passes the historic Croxdale Viaduct.
The reserve's unique Magnesian Limestone grassland is particularly beautiful when wildflowers are in bloom. Spring and summer offer the most vibrant displays of flora and generally favorable weather conditions for cycling. However, the trails are accessible year-round, with autumn providing scenic foliage and winter offering a quieter experience, though conditions may be colder and wetter.
The gravel biking routes in Thrislington National Nature Reserve are highly regarded by the komoot community, with an average rating of 3.9 stars from 5 reviews. Riders often praise the unique natural landscapes, the variety of terrain, and the opportunity to explore former railway lines.
Yes, some routes incorporate historical elements. For instance, the National Cycle Route – Croxdale Viaduct loop from Spennymoor passes by the historic Croxdale Viaduct. The reserve itself is adjacent to a working Magnesian limestone quarry, offering a glimpse into the region's industrial past alongside its preserved natural beauty.
Among the moderate options, the National Cycle Route – Croxdale Viaduct loop from Spennymoor is one of the longer choices, covering 51.4 km with an elevation gain of approximately 393 meters.
Yes, several routes utilize river valleys. The Dearness Valley Railway Path – River Deerness loop from Tudhoe Grange is a 40.5 km trail that leads through river valleys and along former railway lines, offering a scenic ride.


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