4.4
(123)
645
riders
42
rides
Mountain biking around Montjaux offers a diverse landscape for riders. The region, situated in Aveyron, is characterized by its deep river valleys, limestone plateaus (causses), and green, rolling hills. Riders can expect varied terrain, from paths winding through agricultural areas to trails offering views of the Tarn River. The area provides a mix of challenging ascents and flowing descents suitable for mountain biking.
Last updated: October 11, 2026
5.0
(6)
25
riders
44.6km
04:24
1,130m
1,140m
A difficult 27.7-mile mountain biking loop through the diverse landscapes and challenging terrain of the Parc naturel régional des Grands Ca
5.0
(5)
26
riders
36.4km
03:27
820m
830m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

4.0
(25)
112
riders
28.9km
01:45
210m
210m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
4.5
(13)
60
riders
46.9km
03:18
560m
560m
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
3.0
(1)
8
riders
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
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Built between 1818 and 1821, the Lerouge bridge became one of the main structures for crossing the Tarn in Millau. It replaced the Pont Vieux, several arches of which had been destroyed by a flood in 1758, leaving the town without a permanent bridge for over sixty years. During this long period, crossing the Tarn was mainly done by ferry. The project was launched on the initiative of the prefect of Aveyron, d’Estourmel. The plans were drawn up by Pierre-Jacques Le Rouge, an engineer for the district. The first stone was laid on June 20, 1818, and the bridge was opened to traffic in January 1821. Its name therefore comes from its designer, not from the color of its stones. A curious detail: its construction was largely financed by private individuals, and a toll was collected until 1875. This tax even caused tensions with the inhabitants of Creissels, some of whom continued to cross the Tarn on foot or by boat to avoid paying it.
3
0
This place is the starting point of the Voie Verte which runs along the Tarn and leads to Creissels. You can discover the troglodytic village of Peyre in particular, a very pleasant forest section which, in places, forms a real green tunnel. Further on, you can enjoy a magnificent view of the Millau Viaduct.
2
0
From this point at the foot of the structure, the regular succession of piers and guyed pylons can be particularly well distinguished. The deck, 2,460 m long, crosses the valley at a height of approximately 270 m above the Tarn. Pier P2, the tallest, culminates at 245 m, while the assembly formed by the pier and its pylon reaches 343 m: a height greater than that of the Eiffel Tower. This perspective also recalls the technical feat that the construction of the viaduct represented. The metal deck was assembled in sections from either side of the valley, then progressively launched across the void. The joining of the two parts was carried out on May 28, 2004, 268 m above the Tarn, before the official inauguration a few months later. An interesting detail can be discerned here: despite its exceptional dimensions, the structure appears remarkably light. This impression is not accidental. The viaduct was specifically designed to blend into the valley by limiting the visual impact of its structure, with a very slender deck and piers that branch out in a "Y" shape.
2
0
From the greenway, the Millau Viaduct is revealed from a particularly spectacular angle! One becomes aware of the extraordinary dimensions of the structure. Built between 2001 and 2004, the viaduct crosses the Tarn valley over 2,460 m and connects the Causse Rouge to the north with the Causse du Larzac to the south. Its metal deck, approximately 32 m wide, rests on seven concrete piers extended by seven cable-stayed pylons. At its highest point, the entire structure reaches 343 m above the ground; the deck is up to about 270 m above the Tarn. Designed by engineer Michel Virlogeux and British architect Sir Norman Foster, the viaduct combines a very slender metal structure with piers whose "Y" shape helps to visually lighten the whole. The deck was manufactured in metal elements and then gradually launched from both ends of the valley. The joining of the two parts was finally carried out on May 28, 2004, at 268 m above the Tarn.
2
0
Absolutely worth seeing - view it from below and definitely join the architecture tour.
0
0
Classified among "The Most Beautiful Villages of France", Peyre stands on the right bank of the Tarn, leaning against the cliff of Causse Rouge, and is distinguished by its light-colored stone troglodyte houses, carved into the tuff rock, offering a breathtaking view of the famous Millau Viaduct.
0
0
Beautiful walks to do along the Tarn.
0
0
There are over 40 mountain bike trails documented around Montjaux on komoot, offering a wide range of options for different skill levels and preferences.
Yes, Montjaux offers 3 easy mountain bike routes. These trails are generally less demanding, making them suitable for beginners or those looking for a more relaxed ride. For example, the Saint-Rome-de-Tarn – The peeled valley at Auriac loop from Saint-Rome-de-Tarn is a moderate option that can be a good starting point, covering about 20.5 km.
The terrain around Montjaux is diverse, characterized by deep river valleys, limestone plateaus (causses), and green, rolling hills. You'll encounter paths winding through agricultural areas, as well as trails offering scenic views of the Tarn River. Expect a mix of challenging ascents and flowing descents.
Absolutely. Montjaux features 8 difficult mountain bike routes designed for advanced riders seeking a significant challenge. The Navas Mountain Bike Loop, for instance, is a difficult 44.6 km route with over 1100 meters of elevation gain, typically taking around 4 hours and 24 minutes to complete.
Yes, the region offers several trails with stunning viewpoints. Many routes provide vistas of the Tarn River valley and the iconic Millau Viaduct. Notable viewpoints include the Millau Viaduct Viewpoint and Cap de Coste Viewpoint, which can be incorporated into your rides.
Many mountain bike routes in Montjaux are designed as loops, allowing you to start and finish at the same point. Examples include the Peyre Village – Millau Viaduct loop from Peyre and the Green trails – St Georges de luzencon/Millau loop from Saint-Georges-de-Luzençon, both offering varied scenery.
The spring and autumn months are generally ideal for mountain biking in Montjaux. The weather is typically milder, and the natural landscapes are vibrant. Summer can also be enjoyable, especially in the mornings or late afternoons, though it can get quite warm.
The mountain bike trails in Montjaux are highly regarded by the komoot community, with an average rating of 4.4 stars from over 70 reviews. Riders often praise the varied terrain, the scenic views of the Tarn River and Millau Viaduct, and the mix of challenging and flowing sections.
Yes, the area is rich in natural beauty and interesting landmarks. You can encounter the impressive Millau Viaduct, the serene Cascade des Raspes du Tarn waterfall, or even the ancient Dinosaur Footprints of Peyre. The Cliffs of the Cirque du Boundoulaou also offer dramatic scenery.
Ride durations vary significantly depending on the trail's length and difficulty. Moderate routes like the Peyre Village – Green trails loop from Saint-Georges-de-Luzençon, which is 36.6 km, can take around 2 hours and 20 minutes. More challenging routes, such as the 44.6 km Navas Mountain Bike Loop, can extend to over 4 hours.
While popular routes can see more traffic, exploring some of the lesser-known trails or riding during off-peak hours (weekdays, early mornings) can offer a more solitary experience. The region has 40 routes, so there are plenty of options to discover quieter paths away from the main attractions.


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