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Mountain biking trails

Saint-Rémy-Lès-Chevreuse

Fauvettes Viaduct – Aigrefon wood loop from Saint-Rémy-lès-Chevreuse

Mountain biking trails

Saint-Rémy-Lès-Chevreuse

Fauvettes Viaduct – Aigrefon wood loop from Saint-Rémy-lès-Chevreuse

Moderate

4.4

(10)

87

riders

Fauvettes Viaduct – Aigrefon wood loop from Saint-Rémy-lès-Chevreuse

02:34

29.5km

480m

Mountain biking

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: August 20, 2026

Tips

Cycling is not permitted along parts of this route

After 0 m for 215 m

After 8.75 km for 87 m

After 15.9 km for 124 m

After 29.4 km for 211 m

Waypoints

A

Start point

Train Station

7.97 km

Forêt communale de Gif-sur-Yvette

Forest

2

8.87 km

Singletrack in the Vallon de la Frileuse

Highlight (Segment) • Trail

Nice piece of forest single track, barely technical except when fording at its end.

Translated by Google •

Tip by

3

13.4 km

Fauvettes Viaduct

Highlight (Segment) • Bridge

Nice point of view

Translated by Google •

Tip by

4

14.2 km

Montjay Tunnel

Highlight • Trail

Like the nearby Fauvettes viaduct, the Montjay tunnel once served as the old Paris-Chartres railway line. In the middle of the communal forest of Bures-sur-Yvette, it punctuates the straight and rolling line leading to the viaduct.

Translated by Google •

Tip by

5

15.9 km

Grande Maison Park

Highlight • Natural

This park owes its name to the bourgeois-style building present in the middle of its seven hectares of greenery. It is pleasant to run on its wide paths and along …

Translated by Google •

Tip by

6

18.1 km

Technical Forest Singletrack

Highlight • Trail

Small, ultra-technical descent, with steps and rocks.

Translated by Google •

Tip by

7

22.8 km

Vallée de la Mérantaise

Highlight • Gorge

The Mérantaise Valley, near Villiers-le-Bâcle, is a veritable green haven in Île-de-France. The trail runs along the Mérantaise River, winding through dense forests, meadows and wetlands rich in biodiversity. It …

Translated by Google •

Tip by

8

23.7 km

Aigrefon wood

Highlight • Forest

Ease of access and diversity of slopes

Translated by Google •

Tip by

25.3 km

Viewpoint

Viewpoint

25.6 km

Bois d'Aigrefoin

Forest

11

27.6 km

Abandoned Château in Parc Naturel Régional de la Haute Vallée de Chevreuse

Highlight • Castle

B

29.5 km

End point

Train Station

Way Types & Surfaces

Way Types

14.0 km

9.32 km

2.34 km

2.18 km

1.40 km

287 m

< 100 m

Surfaces

8.44 km

6.69 km

6.41 km

5.46 km

2.16 km

229 m

101 m

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Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (160 m)

Lowest point (60 m)

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Weather

Powered by Foreca

Tuesday 20 October

14°C

4°C

74 %

Additional weather tips

Max wind speed: 30.0 km/h

to get more detailed weather forecasts along your route

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