Thrislington National Nature Reserve
Thrislington National Nature Reserve
3.3
(3)
102
riders
7
rides
No traffic gravel bike trails in Thrislington National Nature Reserve traverse a unique landscape characterized by Magnesian Limestone grassland, formed on ancient rock. The terrain features rolling, open grasslands interspersed with pockets of woodland, providing varied surfaces for gravel cycling. Natural depressions known as "shake holes" add to the geological interest, while well-marked paths offer a mix of open countryside and shaded sections. This environment supports a diverse ecosystem, making it suitable for exploring on gravel bikes.
Last updated: May 13, 2026
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
51.3km
03:04
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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6
riders
40.5km
02:23
390m
390m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
4.0
(1)
3
riders
Moderate gravel ride. 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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A lovely traffic free off road ride. Great views and lots of history too.
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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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This track has recently been tarmacked from "South Hetton" to "Shotton" the restriction in the photo is not there now
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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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Newton Cap Viaduct is Grade II listed and was built in 1857 to carry the Bishop Auckland to Durham City railway across the River Wear. The viaduct fell into disuse when the railway closed in 1968. However, work began to strengthen the viaduct and convert it for road use. It was completed in 1995 and the busy A689 road was rerouted over the viaduct.
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The trails primarily traverse the unique Magnesian Limestone grassland, offering a mix of rolling, open grasslands and sections through pockets of woodland. You'll encounter varied surfaces, including open countryside paths and concessionary paths, which are well-suited for gravel biking, providing a rugged yet less technical experience than mountain biking.
There are 7 dedicated no-traffic gravel bike routes available in and around Thrislington National Nature Reserve. These routes range in difficulty from easy to moderate, ensuring options for various skill levels.
Yes, there is at least one easy gravel bike trail. For a more relaxed ride, consider the Woodland Pond – National Cycle Network Route 1 loop from Charity Land SSSI, which offers a gentle introduction to gravel biking in the reserve.
While the reserve is a natural habitat, specific rules for dogs on cycling paths can vary. Generally, dogs are welcome on public rights of way if kept under close control. Given the rich biodiversity, including ground-nesting birds and sensitive flora, it's crucial to keep dogs on a lead to protect the wildlife and ensure a pleasant experience for all visitors. Always check local signage for the most current regulations.
Yes, many of the routes are designed as loops. For example, the Old Railway Remnants – Bone-Shaker Bridge loop from Cassop-cum-Quarrington is a popular circular option, allowing you to start and finish at the same point.
Thrislington National Nature Reserve is renowned for its rare Magnesian Limestone grassland, supporting over 50 species of wildflowers, including the fragrant orchid. You might also spot diverse insect species like the northern brown argus butterfly and glow-worms, as well as various birds. The landscape features unique geological 'shake holes' and a mix of open grasslands and woodlands.
Spring and summer are particularly rewarding for gravel biking in the reserve, as the Magnesian Limestone grassland bursts with wildflowers. Autumn offers beautiful foliage, while winter can provide a crisp, quiet experience, though paths may be muddier. Always check weather conditions before heading out.
While the reserve itself is focused on natural preservation and doesn't have internal facilities, you'll find cafes and pubs in nearby villages and towns such as Spennymoor or Cassop-cum-Quarrington, which are often starting points for many routes. It's advisable to plan your refreshment stops in advance.
Many routes start from accessible points in surrounding areas. For instance, the Deerness path – River Deerness loop begins near Spennymoor, and the National Cycle Route – Croxdale Viaduct loop also starts from Spennymoor. Parking is generally available in these nearby towns, and some routes connect to public transport links.
The komoot community rates the routes in Thrislington National Nature Reserve with an average of 3.5 stars. Riders often praise the peaceful, traffic-free nature of the trails and the unique natural beauty of the Magnesian Limestone landscape.
Yes, for those seeking a longer challenge, the National Cycle Route – Croxdale Viaduct loop from Spennymoor covers over 51 kilometers and is rated as moderate difficulty, offering an extensive ride through the region's varied landscapes.
The trails in Thrislington National Nature Reserve often connect with broader public footpath systems and national cycle networks, allowing for extended rides that can link to other natural areas or points of interest in County Durham. The reserve itself is a significant ecological site, as detailed by the government's information on Durham's National Nature Reserves.


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