4.2
(4)
18
riders
12
rides
Gravel biking around Biol traverses a landscape characterized by a mix of woodlands, open agricultural fields, and small water bodies. The region offers varied terrain, from rolling hills to more challenging ascents, suitable for different gravel biking experiences. Cyclists can expect unpaved roads and paths that wind through rural settings. These routes provide opportunities for both moderate and difficult rides.
Last updated: May 21, 2026
3
riders
53.5km
04:09
1,260m
1,260m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
29.5km
02:04
290m
290m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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1
riders
15.9km
01:12
220m
220m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
22.8km
01:35
260m
250m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4.5
(2)
2
riders
16.0km
01:05
200m
200m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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This memorial cross made of light wood—dedicated to the memory of a deceased monk—is one of many that bikers encounter repeatedly along the way. They are all symbols of remembrance of the crucifixion, but also of the resurrection of Jesus Christ. + "With us on earth, His memory exists, but in the kingdom of heaven is His presence: This presence is the joy of those who have already attained salvation. The memory is our consolation, as we are still wanderers, journeying toward our fatherland." (Bernard of Clairvaux) Some passersby have placed stones at the foot of the small sacred monument.
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Magnificent hikes without being isolated, with varied landscapes and beautiful mountain views, no elevation changes, and plenty of wildlife along the way. Top!
1
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A completely crazy climb, you have to be crazy to try it! Absurd percentages! But what pride to reach the top... plus, the climb is part of the official route of the 2025 French Championship!
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to book your stay for the night: 1001yourtes@gmail.com you can also visit: https://www.les-mille-et-une-yourtes.com/
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Small village in North Isère
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Built in 1867, the church was built on the edge of the plateau on a sort of terrace offering a breathtaking view of the entire region.
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A cross at the junction of several paths commemorating the death of a monk.
2
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A small town in northern Isère with a pretty church.
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There are over 15 gravel bike trails around Biol, offering a variety of experiences. These routes traverse a landscape characterized by woodlands, open agricultural fields, and small water bodies, providing options for different skill levels.
While the guide primarily features moderate and difficult routes, many of the moderate trails can be suitable for beginners looking for a bit of a challenge. For example, the Étang de la Rosière – Ruffieu loop from ZA du Vernay is a moderate 14.5-mile route with manageable climbs and descents.
Gravel biking around Biol features varied terrain, from rolling hills to more challenging ascents. You'll encounter unpaved roads and paths winding through rural settings, forested sections, and open field paths. Elevation gains can vary significantly, with some difficult routes like the Longechenal Church – Dead monk cross loop from Belmont featuring over 1,100 meters of ascent.
Yes, many of the gravel bike trails in Biol are designed as loops. Popular circular routes include the Étang de la Rosière – Ruffieu loop from ZA du Vernay, the challenging Longechenal Church – Dead monk cross loop from Belmont, and the Large stone descent loop from Champier.
While riding, you can explore several historical and religious sites. Notable landmarks include the Église Saint-Christophe du Pin, the intriguing Dead monk cross, and the serene Saint Joseph Chapel. These offer glimpses into the region's heritage.
The duration of gravel bike trails in Biol varies depending on the route's length and difficulty. Moderate routes like the Étang de la Rosière – Ruffieu loop from ZA du Vernay typically take around 1 hour 46 minutes, while more difficult and longer routes, such as the Longechenal Church – Dead monk cross loop from Belmont, can take over 4 hours.
Yes, Biol offers several challenging routes for experienced gravel bikers. The Longechenal Church – Dead monk cross loop from Belmont is a prime example, covering 31.6 miles with significant elevation gain, offering panoramic views and a demanding ride.
The gravel bike trails in Biol are highly rated by the komoot community, with an average score of 4.1 stars. Riders often praise the varied terrain, which includes a mix of woodlands, open fields, and quiet paths, providing a diverse and engaging cycling experience.
Many of the moderate routes in Biol, characterized by rolling hills and unpaved paths through rural settings, can be suitable for families with older children who are comfortable with longer rides and some elevation. Always check the specific route details for distance and elevation to ensure it matches your family's ability.
Generally, dogs are welcome on many outdoor trails in rural areas like Biol, especially if kept on a leash. However, it's always advisable to check local regulations or specific trail signs for any restrictions, particularly in nature reserves or protected areas, to ensure a pleasant experience for everyone.
Many routes start from villages or designated areas that typically offer parking. For instance, routes like the Étang de la Rosière – Ruffieu loop start from locations like ZA du Vernay, which usually have parking facilities. Always check the starting point of your chosen route for specific parking information.
Yes, several routes incorporate local water bodies into their scenic paths. The Étang de la Rosière – Ruffieu loop from ZA du Vernay and the Étang de la Blanche – Étangs des Ragées loop from Champier are examples of routes that feature picturesque ponds and lakes, offering tranquil views during your ride.


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