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Routes
Mountain biking trails
France
Ile-de-France
Palaiseau
Orsay

Viaduc de la Prédécelle – Fauvettes Viaduct loop from Orsay-Ville

Routes
Mountain biking trails
France
Ile-de-France
Palaiseau
Orsay

Viaduc de la Prédécelle – Fauvettes Viaduct loop from Orsay-Ville

Hard

4.2

(30)

94

riders

Viaduc de la Prédécelle – Fauvettes Viaduct loop from Orsay-Ville

02:09

32.5km

250m

Mountain biking

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.

Last updated: May 25, 2026

Tips

Includes a segment that is highly dangerous

A part of this route comprises highly technical, difficult, or hazardous terrain. Specialist equipment and prior experience is required.

After 11.2 km for 75 m

Waypoints

A

Start point

Train Station

Get Directions

1

11.2 km

Stone Arch Bridge on the Old Railway Line

Highlight • Bridge

Super atypical passage, I recommend

Translated by Google •

Tip by

2

12.4 km

Tour in the woods...

Highlight • Other

3

19.4 km

Viaduc de la Prédécelle

Highlight • Bridge

It is a mini viaduct which offers beautiful views

Translated by Google •

Tip by

4

19.7 km

Old Route of the Limours Aérotrain

Highlight (Segment) • Structure

Interesting crossing of the wood, however beware of the concrete studs that have been sawn in the middle of the track. This can be inconvenient to keep its trajectory. Little …

Translated by Google •

Tip by

5

27.9 km

Fauvettes Viaduct

Highlight (Segment) • Bridge

Nice point of view

Translated by Google •

Tip by

6

28.6 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

7

30.2 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

8

31.2 km

Formerly a large estate (planed by the Paris-Chartres railway line) including a castle, destroyed during the Allied bombings of 1944.

Translated by Google •

Tip by

B

32.5 km

End point

Train Station

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Way Types & Surfaces

Way Types

11.3 km

9.20 km

6.45 km

3.14 km

2.02 km

342 m

Surfaces

14.9 km

10.8 km

4.70 km

1.18 km

725 m

140 m

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Elevation

Elevation

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

Highest point (180 m)

Lowest point (60 m)

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Weather

Powered by Foreca

Sunday 28 June

27°C

16°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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