4.4
(5)
36
riders
6
rides
Gravel bike trails around Lac De Castelnau-Lassouts offer diverse terrain within the Aveyron region, characterized by the Lot River's gorges and the varied landscapes of the Aubrac Regional Natural Park. The area provides a mix of paved roads and wild trails, allowing for extensive rides through natural settings. Riders can expect routes that transition from the arid plateaus of the Causses to the higher volcanic terrain of Aubrac. This environment supports gravel biking experiences ranging from moderate to challenging, with…
Last updated: August 24, 2026
15
riders
96.0km
06:54
1,780m
1,780m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
1
riders
17.2km
01:50
670m
670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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2
riders
51.7km
03:57
1,270m
1,270m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.8
(4)
15
riders
44.4km
03:04
670m
670m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
3
riders
23.8km
01:35
440m
440m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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At the foot of the village of Mandailles lies the dam of the same name, built in 1949, which holds back the waters of the Lot to form a lake popular with fishermen and walkers. It is part of the hydroelectric system of the Massif Central and its body of water is bordered by a walkable path that invites you for a stroll.
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Several tunnels on the descent of the greenway, several viaducts in between too, a real passage steeped in railway history!
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The greenway is dotted with several viaducts like this one all the way down to Espallion. All in the same style, a journey back in time.
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pleasant and steady route even in the heat. Suitable for all levels
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And at the bottom of the Bozouls hole flows the Dourdou.
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Near Bertholène, Lac des Bruyères is a small body of water appreciated by fishing enthusiasts. You will find a picnic table there if you want to take a break in the middle of a long outing.
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Very very beautiful village, the hole, an unusual discovery. The perfect must-see!
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There are 5 gravel bike routes available in the Lac De Castelnau-Lassouts area, offering a range of distances and elevations to explore.
While many routes in the area are rated difficult, there is one moderate route, the Saint-Côme d'Olt – Viaduc de la Loubière loop from Saint-Côme-d'Olt, which might be more suitable for those looking for a less strenuous ride. The region generally offers varied difficulty levels, so it's best to check individual route details for suitability.
The terrain around Lac De Castelnau-Lassouts is diverse, allowing for seamless transitions between paved roads and wild trails. You can expect a mix of surfaces, from challenging ascents to panoramic trails, all set within a wild natural environment. The Aveyron region is known for its varied landscapes, from arid plateaus to high volcanic terrain.
The region is rich in natural beauty. You can expect views of the Lac de Castelnau-Lassouts itself, an EDF dam lake on the Lot River characterized by its steep gorges. The Saint-Côme d'Olt – Bozouls Canyon loop from Saint-Côme-d'Olt route offers a chance to see the distinctive horseshoe-shaped 'Trou' de Bozouls. The area is also part of the Aubrac Regional Natural Park, known for its rich flora and diverse wildlife.
Yes, the area offers several challenging routes. For instance, the Bruyères lake – Saint-Geniez-d'Olt loop from Saint-Geniez-d'Olt covers over 96 km with nearly 1800 meters of elevation gain. Another demanding option is the Aubrac – Aubrac Pass loop from Saint-Côme-d'Olt, which includes over 1300 meters of ascent over 59 km, requiring excellent fitness.
Yes, all the gravel bike routes listed for this area are designed as loops, allowing you to start and finish at the same point. Examples include the Saint-Geniez-d'Olt loop from Saint-Geniez-d'Olt and the Saint-Côme d'Olt – Viaduc de la Loubière loop from Saint-Côme-d'Olt.
The region's diverse landscapes and outdoor activities suggest that spring and autumn would be ideal for gravel biking, offering pleasant temperatures and vibrant scenery. Summer can also be suitable, but it's always wise to check local weather conditions, especially for longer rides with significant elevation.
Many routes start from villages like Saint-Geniez-d'Olt or Saint-Côme-d'Olt, which typically offer public parking facilities. It's advisable to check the specific starting point of your chosen route for the most convenient parking options.
Beyond gravel biking, the Lac de Castelnau-Lassouts area is excellent for various outdoor pursuits. The lake is popular for fishing, boating, and canoeing. There are also numerous trails for hiking, including a challenging loop around the lake. The wider Aveyron region supports mountain biking, horse riding, climbing, speleology, via ferrata, and adventure parks.
The area is highly rated by the komoot community, with an average score of 4.7 stars. Reviewers often praise the diverse terrain, the scenic landscapes, and the opportunity to immerse oneself in the wild nature of the Aubrac Regional Natural Park.
Villages like Saint-Geniez-d'Olt and Saint-Côme-d'Olt, which serve as starting points for many routes, are likely to have cafes, restaurants, and accommodation options. Sainte-Eulalie-d'Olt is also mentioned as a charming village in the area, suggesting local amenities.


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