2
riders
03:03
31.4km
830m
Mountain biking
This moderate 19.5-mile mountain biking loop in Parc naturel régional des Grands Causses explores red sandstone valleys and Saint-Izaire vil
Last updated: February 26, 2026
Tips
Includes a segment in which cycling is not permitted
After 222 m for 146 m
Waypoints
Start point
Parking
Get Directions
222 m
Highlight • Castle
Translated by Google •
Tip by
5.45 km
Highlight • Other
Translated by Google •
Tip by
26.1 km
Highlight • Other
Translated by Google •
Tip by
31.4 km
End point
Parking
Way Types & Surfaces
Way Types
17.9 km
9.12 km
2.79 km
1.24 km
455 m
Surfaces
18.7 km
8.53 km
3.41 km
805 m
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Elevation
Highest point (640 m)
Lowest point (250 m)
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Weather
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Wednesday 27 May
33°C
17°C
0 %
Additional weather tips
Max wind speed: 16.0 km/h
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This route was planned by komoot.
The loop is approximately 31.4 km long with an elevation gain of 825 meters. On average, it takes about 3 hours of riding time to complete. However, this can vary depending on your fitness level, speed, and how often you stop to enjoy the scenery or visit points of interest.
The village of Saint-Izaire is the most convenient starting point for this loop. You can typically find parking within or near the village, which is built in an amphitheater around a medieval episcopal castle, making it a great place to begin and end your ride.
While the trail is rated as 'moderate' and requires a good level of physical fitness due to its length and significant elevation gain, it is generally considered accessible for mountain bikers of varying skill levels. Beginners with some experience and good stamina should be able to manage it, but it's not a casual ride.
The terrain is diverse, traversing a hilly and enchanting landscape characterized by red sandstone. You'll ride through the valleys of the Dourdou, the Tarn, and the Gos, encountering riverbanks, undergrowth, farms, and hamlets. The red hue of the local sandstone is a prominent feature throughout the ride.
Spring and autumn are generally the best seasons for mountain biking this route. The weather is typically milder, and the landscapes are vibrant. Summer can be quite hot, while winter might bring colder temperatures and potentially muddy conditions.
Yes, the route offers several points of interest. You'll pass by the historic village of Saint-Izaire with its medieval streets and the impressive Château de Saint-Izaire. Other highlights include the Sentier des rougiers and a Bridge over the Tarn. There are also beautiful panoramic viewpoints overlooking the Dourdou, Tarn, and Gos valleys.
Yes, the route intersects with several other paths. Notably, it covers significant sections of the Voie Verte du Saint-Affriccain (18%) and the Chemin Descombes (9%). You'll also encounter smaller portions of trails like the Chemin de l’Amitié and the Sentier des Sources.
While dogs are generally permitted on trails within the Parc naturel régional des Grands Causses, it's always recommended to keep them on a leash, especially when passing through agricultural areas or near wildlife. Please ensure your dog is well-behaved and that you clean up after them.
No, you do not need a specific permit or to pay an entrance fee to access this mountain bike trail within the Parc naturel régional des Grands Causses. Regional Natural Parks in France are generally free to access, but visitors are expected to respect local regulations, protect the environment, and stay on marked paths.
The village of Saint-Izaire, where the loop typically starts and ends, is likely to have options for refreshments or a meal. It's a charming village with historical significance, so you can expect some local establishments to cater to visitors.
Given the moderate difficulty and length, you should pack plenty of water, snacks, a basic bike repair kit (including a spare tube and pump), appropriate cycling attire, a helmet, and sun protection. A first-aid kit and a charged phone are also highly recommended.