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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

4.3

(28)

101

riders

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

02:13

33.9km

260m

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: January 24, 2026

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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 12.8 km for 75 m

Waypoints

A

Start point

Train Station

Get Directions

1

11.2 km

Beauséjour Lake

Highlight • Lake

History of the work
15th century: Construction as a water supply reserve for a mill
1930: Breakup
1930s: Reconstruction
1990: Diagnosis
1993: Rehabilitation of the banks (with a drop in …

Translated by Google •

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2

12.9 km

Super atypical passage, I recommend

Translated by Google •

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3

14.0 km

Tour in the woods...

Highlight • Other

4

21.0 km

Viaduc de la Prédécelle

Highlight • Bridge

It is a mini viaduct which offers beautiful views

Translated by Google •

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5

21.3 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 •

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6

29.5 km

Fauvettes Viaduct

Highlight (Segment) • Bridge

Nice point of view

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7

30.2 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 •

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8

31.9 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 •

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B

33.9 km

End point

Train Station

Way Types & Surfaces

Way Types

10.5 km

9.06 km

6.78 km

5.14 km

2.10 km

330 m

Surfaces

16.3 km

11.2 km

4.39 km

1.07 km

778 m

195 m

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Elevation

Elevation

Highest point (180 m)

Lowest point (60 m)

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