4.0
(17)
51
riders
21
rides
Gravel biking around Saint-Agnin-Sur-Bion features a landscape characterized by rolling hills, agricultural plains, and sections of woodland. The region offers a network of paths and quiet roads suitable for gravel bikes, connecting various small towns and natural areas. Elevation changes are generally moderate, with some routes including more significant climbs.
Last updated: May 22, 2026
3.7
(3)
5
riders
48.7km
03:13
620m
620m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
4
riders
50.5km
03:20
500m
500m
Hard gravel ride. Very good fitness required. You may need to push your bike for some segments of this route.

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7
riders
28.2km
01:37
140m
140m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
3.8
(6)
8
riders
34.9km
02:38
530m
530m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
3.0
(3)
4
riders
42.7km
03:05
610m
610m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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A lovely restored and open chapel
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a pretty chapel
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Bourgoin-Jallieu: The former General Stores are being transformed into a street art haven https://www.francebleu.fr/infos/insolite/bourgoin-jallieu-les-anciens-magasins-generaux-se-transforment-en-royaume-du-street-art-6125702
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Superb greenway with a very pleasant surface, rolling in being tarmac. Often shaded, so good in summer
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Cremieu - Morestel: The old railway line is still clearly visible on the route. Lots of shade, very scenic.
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On one of the high points of the hill of L'Isle d'Abeau, on the northern edge overlooking the hamlet of Didier and the quarries, is the location of the old fortified house of the Pollouds, a family mentioned in the 14th and 16th centuries. centuries. The Napoleonic land register shows that several buildings were still standing in the first half of the 19th century under the name of “Delay” castle (name of the farmer who bought the land after the Revolution). The chapel, circular in plan, occupies one of the towers of the old castle, as shown by the presence of three keyhole shooting slots. In the 1860s, the owner transformed this tower, then serving as a henhouse, into a public oratory, which he had decorated with a mural and a statuette of Saint Anne.
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There are over 20 gravel bike routes in the Saint-Agnin-Sur-Bion area, offering a variety of experiences for different skill levels. You'll find a mix of easy, moderate, and difficult trails.
Yes, the region offers a few easier routes. For a moderate option with less elevation gain, consider the Bourbre Greenway – Étang de la Rosière loop from L'Isle-d'Abeau, which is 33.7 km long. Another moderate choice is the Bourbre Greenway – Montée du Loup loop from Bourgoin-Jallieu, at 27.8 km.
Advanced riders seeking a challenge will find several difficult routes. The Enter – Route de Beausoleil loop from Bourgoin-Jallieu is a popular choice, spanning 43.1 km with significant elevation changes. Another demanding option is the Three Waters Pond – Four Winds Pavilion loop from L'Isle-d'Abeau, covering 34.9 km with diverse natural settings and climbs.
The longest gravel bike route in the immediate vicinity is the Étang de Chalignieu – Crémieu–Morestel Greenway loop from L'Isle-d'Abeau. This trail extends for 48.9 km and features varied terrain, including sections along greenways and through rural landscapes.
Yes, many of the gravel bike routes around Saint-Agnin-Sur-Bion are designed as loops, allowing you to start and finish at the same point. Examples include the Étang de Chalignieu – Crémieu–Morestel Greenway loop from L'Isle-d'Abeau and the Bourbre Greenway – Étang de la Rosière loop from L'Isle-d'Abeau.
The landscape is characterized by rolling hills, expansive agricultural plains, and sections of tranquil woodland. You'll ride on a network of paths and quiet roads, connecting small towns and natural areas. Elevation changes are generally moderate, though some routes do include more significant climbs.
While riding, you might encounter several points of interest. The Étang de la Rosière is a notable lake, and you can also find historical religious buildings like the Chapelle Sainte-Anne and Saint Joseph Chapel. The Bourbre Greenway itself is a pleasant feature of many routes.
The trails in Saint-Agnin-Sur-Bion are highly rated by the komoot community, with an average score of 4.1 stars from over 10 reviews. Riders often praise the varied terrain, the mix of open countryside and wooded areas, and the peaceful rural landscapes that define the region's gravel biking experience.
Yes, the region offers options suitable for families, particularly on the easier and moderate routes that feature less challenging terrain and elevation. The greenway sections provide smooth, enjoyable riding for all ages. Look for routes with lower difficulty ratings for the best family experience.
Spring and autumn generally offer the most pleasant conditions for gravel biking in Saint-Agnin-Sur-Bion, with mild temperatures and beautiful scenery. Summer can also be enjoyable, especially in the mornings or late afternoons to avoid the midday heat. Winter riding is possible, but be prepared for cooler temperatures and potentially wet or muddy sections.
While specific cafes directly on every trail might vary, the routes often connect various small towns and villages where you can find local establishments for refreshments. Planning your route to pass through these towns will allow for convenient stops.
Many routes start from towns like L'Isle-d'Abeau or Bourgoin-Jallieu, which typically offer public parking options. It's advisable to check the starting point of your chosen route on komoot for specific parking recommendations or available public parking facilities in the vicinity.


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