4.6
(11)
167
riders
65
rides
Gravel biking around Terwen offers a diverse landscape characterized by river valleys, such as the Moselle, and extensive forested areas. The terrain varies from relatively flat paths to routes with significant elevation gain. Gravel bike trails in the region often incorporate a mix of natural surfaces and paved sections, providing varied riding experiences. This network supports different skill levels, from moderate to difficult.
Last updated: May 22, 2026
5.0
(1)
26
riders
79.0km
05:09
770m
770m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
14
riders
98.8km
06:56
1,000m
1,000m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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11
riders
66.1km
04:47
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
7
riders
42.8km
03:17
600m
600m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
9
riders
107km
06:58
1,340m
1,340m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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The cycle path rides really well
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This is a spot with tracks going in all directions on old military trenches. There are transitions of all sizes and at least one small drop.
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with family
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If you have time, you should visit it.
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🛡️ **Ouvrage de Kobenbusch – Mighty Fortification of the Maginot Line** The **Ouvrage de Kobenbusch**, located south of Cattenom near the Luxembourg border, is one of the large underground fortifications of the **Maginot Line**. It was built between 1930 and 1935 and consisted of several combat blocks, underground connecting tunnels, a barracks, ammunition depots, and machine rooms – on several levels, anchored deep in the limestone. ⚙️ Particularly noteworthy: The technical systems were designed to be self-sufficient for months – including power generation, ventilation, a kitchen, and a hospital. The fort was occupied without a fight during World War II, continued to be used in part after the war, and is now privately owned. 🚷 It's **not open to the public**, but some ventilation towers and blockhouses are still visible in the forest near the D64 road (between Cattenom and Berg-sur-Moselle). **Tip:** For Maginot fans, a walk through the forest is worthwhile – with a little research, you'll find several bunker remains. Respect barriers, as some entrances are unstable or secured.
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🛡️ **Ouvrage du Galgenberg – A Deep Look into the Maginot Line** The **Ouvrage de Galgenberg** is a large underground fortification of the **Maginot Line**, located south of Cattenom. It was built between 1930 and 1935 and served to defend the French border against Germany. The complex consists of several **combat bunkers**, **barracks**, **tunnels**, and **supply facilities** located deep underground. During the Cold War, the fort was modernized and remained in active use until the 1980s. 🔦 Today, it is accessible for guided tours (registration only), including a view of the original equipment: rails, power supply, ventilation systems, and gun emplacements. **Tip:** Ideal for military and history buffs – bring warm clothing, as it's chilly inside! Guided tours with former soldiers or experts are particularly impressive.
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🧱 **Tour aux Puces** – Thionville's Oldest Building** The **Tour aux Puces** ("Powder Tower") is a medieval fortified tower dating back to the 11th century – and the oldest surviving building in the city. Originally part of a castle complex, it has served over time as a defense tower, a prison, and now houses a **City Museum** with an archaeological collection. 🏺 Inside, you'll find exhibits from Roman, medieval, and early modern periods – from ceramics to weapons to religious objects. The tower probably got its name from a mistranslation from German to French (“Powder Tower” became “Powder Tower”). **Tip:** The tower is cool and quiet – perfect on hot days. From the top, you have a small but excellent view over the old town. Combine it with the Belfry and the Église Saint-Maximin for a historical tour.
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💧 Plan d'Eau de la Sangsue – Small Natural Lake Tucked away in the countryside lies the Plan d'Eau de la Sangsue, a small natural lake with wild shoreline vegetation, calm waters, and a natural charm. While its name ("Leech Pond") is unusual, the body of water is a peaceful spot for walkers, nature lovers, and birdwatchers. 🌿 Surrounded by forest and meadows, the pond is a refuge for amphibians, insects, and waterfowl. A narrow path leads along the shore – ideal for a quiet break in nature. Tip: Particularly beautiful in spring or when there is light fog – then the pond appears almost mystical. Perfect for a quiet rest off the beaten track.
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There are nearly 90 gravel bike trails recorded around Terwen on komoot, offering a wide range of options for different skill levels and preferences.
Gravel biking around Terwen is defined by its diverse landscape, featuring routes along river valleys, such as the Moselle, and through forested areas. The terrain varies from relatively flat paths to routes with significant elevation gain, often incorporating a mix of natural surfaces and paved sections.
The komoot community highly rates the routes in Terwen, with an average score of 4.25 stars from over 20 reviews. Riders often praise the varied terrain, the scenic riverine landscapes, and the challenging forested sections.
While many routes in Terwen are moderate to difficult, there are a few easier options available. These trails typically feature less elevation gain and more forgiving surfaces, making them suitable for those new to gravel biking.
Advanced gravel bikers will find plenty of challenges in Terwen, with 36 difficult routes available. These trails often feature significant elevation changes, demanding climbs, and varied technical terrain through forested sections. For example, the Passerelle de ľEurope – Old Lock Bridge loop from Thionville is a challenging 99.4 km route with nearly 1000 meters of elevation gain.
Yes, Terwen offers several long-distance gravel bike routes. The longest is the Passerelle de ľEurope – Old Lock Bridge loop from Thionville, which spans 99.4 km and takes approximately 8 hours 20 minutes to complete. Another substantial option is the Bibi's Forest Corner – Plan d'Eau de la Sangsue loop from Uckange, covering 64.6 km.
While many routes are geared towards moderate to difficult riders, some of the easier trails or sections along the river valleys can be suitable for families. These often feature flatter paths and less technical terrain. It's advisable to check individual route details for specific suitability.
The best time for gravel biking in Terwen is generally during the spring and autumn months when temperatures are mild and the natural scenery is at its most vibrant. Summer can also be pleasant, though some routes might be more exposed to the sun. Winter riding is possible, but trail conditions can be variable due to rain or occasional snow.
Many of the popular gravel bike routes in Terwen are designed as loops, allowing you to start and finish at the same point. Examples include the Richemont lock – Along the Moselle loop from Yutz and the Ouvrage du Kobenbusch – Passerelle de ľEurope loop from Thionville.
Several routes pass by notable attractions. For instance, the Moselle Cycle Route – Charles le Téméraire cycle route loop from Thionville incorporates the Charles le Téméraire cycle route. Other points of interest in the wider Terwen area include the U4 - Blast Furnace Park (Uckange), the historical Ouvrage Bois-Karre, and the town of Thionville.
The gravel bike trails in Terwen offer varied conditions, ranging from natural surfaces like compacted earth and gravel to paved sections. Routes often follow riverbanks, forest paths, and rural roads. Conditions can change with weather, so it's always good to check recent activity on komoot for the latest updates.
While the guide highlights popular routes, Terwen has 87 total gravel tours, meaning there are many lesser-known paths waiting to be discovered. Exploring routes beyond the most popular ones, especially those through smaller forested areas or along less-trafficked river sections, can reveal unique experiences and quieter rides.


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