4.6
(35)
512
riders
53
rides
Gravel biking around Altthann offers diverse landscapes within the Thann-Cernay region, situated near the Vosges Mountains. The terrain features a mix of dense forests, exposed ridge paths, and mountain passes, providing varied conditions for gravel cyclists. The area includes the Grand Ballon, the highest peak in the Vosges, and sections of the historic Route des Crêtes, which offers extensive views. This environment combines paved and unpaved roads, forest trails, and mountain paths, creating an ideal setting for gravel biking.
Last updated: November 2, 2026
4.2
(6)
56
riders
52.7km
03:56
1,260m
1,260m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
3.7
(3)
38
riders
41.0km
02:51
790m
790m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.

4.5
(2)
19
riders
25.4km
01:59
720m
720m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.
5.0
(1)
18
riders
74.2km
05:09
1,300m
1,300m
Hard gravel ride. Very good fitness required. Mostly paved surfaces.
4.5
(2)
7
riders
34.7km
01:56
100m
100m
Hard gravel ride. You may need to push your bike for some segments of this route.
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When you drive from the Route des Crêtes towards Le Grand Ballon, you pass the Col du Haag (1233 m) almost unnoticed. Yet, this pass marks a special point on the southern flank of the highest mountain in the Vosges. Here, steep roads from the Thurdal leave the wooded slopes and reach the open heights of the massif. From the col, a typical Vosges landscape unfolds with mountain meadows, scattered farms, and sweeping views. The proximity of the Grand Ballon is felt everywhere: the imposing summit towers above the pass and forms the natural goal of the final climbing kilometers. For cyclists, the Col du Haag is mainly known as the point where difficult climbs from the valleys converge before the road continues to rise to the highest point of the Vosges.
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sights again and again towards Cernay
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The 14th stage led up here to Le Haag and on to the finish at Le Markstein. You could experience the athletes up close.
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beautiful view there at the spot
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The Tour de France passed through there on July 18, 2026.
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Lovingly nicknamed "the Autobahn" by me, it leads from Geishouse up to the Col du Haag, and is designed so that there is rarely a gradient over 10%. The Tour de France also rides up here 😬
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The Cernay National Cemetery is a memorial dedicated to the soldiers who fell during the battles of Vieil-Armand and Steinbach in the summer of 1914. Created in 1920, it was designed to house the bodies exhumed from temporary military cemeteries in the region and was reorganized after World War II to include soldiers who died between 1940 and 1945. This cemetery contains 2,238 French bodies, as well as Czech, Russian, British, and Serbian combatants. Two ossuaries contain the remains of 938 combatants.
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There are nearly 50 gravel bike routes around Altthann, offering a wide range of experiences. Most of these routes are considered difficult, with a good selection of moderate options, and a few easier trails for those seeking a more relaxed ride.
The terrain around Altthann is incredibly diverse, ranging from dense forests and exposed ridge paths to scenic mountain passes. You'll encounter a mix of paved and unpaved roads, as well as forest trails, all set against the stunning backdrop of the Vosges Mountains.
While many routes are challenging, Altthann does offer some easier gravel biking trails suitable for families or beginners. These routes typically feature less elevation gain and more gentle paths, allowing for a pleasant experience for all skill levels. For a moderate option, consider the Michelbach Dam – Michelbach Lake loop from Aspach-le-Bas.
Many gravel routes in Altthann offer spectacular views, especially those ascending towards the Grand Ballon, the highest peak in the Vosges Mountains. The historic Route des Crêtes also provides continuous panoramic views of the wooded slopes, the Rhine plain, and even the Black Forest on clear days. The Grand Ballon – Col Amic Pass loop from Steinbach is known for its mountain vistas.
Yes, many of the gravel bike routes around Altthann are designed as loops, allowing you to start and finish at the same point. Examples include the challenging Grand Ballon – Hohneck loop from Cernay, which takes you through the high Vosges, or the Molkenrain - Cernay – Chapelle de la Loh loop from Cernay.
The gravel biking routes in Altthann are highly regarded by the komoot community, with an average rating of 4.6 stars from over 20 reviews. Many riders praise the diverse landscapes, the challenging climbs, and the rewarding panoramic views, especially around the Grand Ballon and along the Route des Crêtes.
Yes, the region has several historical sites. For example, the Hartmannswillerkopf Crypt – Molkenrain - Cernay loop from Wattwiller passes by the Hartmannswillerkopf Crypt. You can also explore nearby historical sites like the Adlerhorst Command Post – World War I or the Veilchenstein German WW1 Bunker, which are part of the 'Caves around Altthann' guide.
Yes, particularly along routes like the historic Route des Crêtes, you'll find traditional 'Fermes' (cozy Alsatian country inns). These establishments offer convenient opportunities for refreshment and a taste of local cuisine during your ride.
The Altthann area is home to several well-known mountain passes that are excellent for gravel biking. These include the Col du Grand Ballon, Col Amic, and Judenhut Pass. These passes offer varying gradients, from steady climbs to more demanding ascents, providing a good challenge for cyclists. You can find more details in the 'Mountain Passes around Altthann' guide, which features highlights like Climb to Col Amic and Judenhut Pass (976 m).
The region's diverse landscapes, including the Vosges Mountains, are generally best enjoyed from spring through autumn. During these seasons, the weather is typically more favorable, and the trails are clear of snow, offering optimal conditions for exploring the forests and ridge paths. Winter conditions can make higher altitude routes challenging due to snow and ice.
Beyond the stunning mountain scenery, you can explore unique natural features like the Lower Rehfelsen Tunnels or the Schletzenbourg Mine, both listed in the 'Caves around Altthann' guide. The Grand Ballon itself, as the highest peak, is a major natural landmark offering incredible panoramic views.


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