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Routes
Mountain biking trails
France
Ile-de-France
Palaiseau
Fontenay-Lès-Briis

Viaduc de la Prédécelle – Château de Forges-les-Bains loop from Fontenay-lès-Briis

Routes
Mountain biking trails
France
Ile-de-France
Palaiseau
Fontenay-Lès-Briis

Viaduc de la Prédécelle – Château de Forges-les-Bains loop from Fontenay-lès-Briis

Moderate

4.5

(4)

12

riders

Viaduc de la Prédécelle – Château de Forges-les-Bains loop from Fontenay-lès-Briis

02:26

32.3km

320m

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: October 7, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional de la Haute Vallée de Chevreuse

Waypoints

A

Start point

Bus stop

Get Directions
1

2.56 km

Briis - DH recycling center

Highlight (Segment) • Other

leave a finger on each brake, see 2!

Translated by Google •

Tip by

2

4.80 km

Descent Under the Briis Pines

Highlight (Segment) • Trail

Outch! make a first reconnaissance before releasing the brakes!

Translated by Google •

Tip by

13.4 km

Point Culminant de l’Essonne

Peak

4

15.1 km

Viaduc de la Prédécelle

Highlight • Bridge

It is a mini viaduct which offers beautiful views

Translated by Google •

Tip by

5

18.0 km

Villevert Pond

Highlight • Other

A good place for a break

Translated by Google •

Tip by

6

22.6 km

Sandpit

Highlight • Other

Nice little sandpit with some bumps

Translated by Google •

Tip by

7

24.2 km

Château de Forges-les-Bains

Highlight • Castle

The castle of Forges-les-Bains was built in the 17th century, before being remodeled in the 18th century by Edme Mathurin Le Jariel, the king's squire.

Translated by Google •

Tip by

B

32.3 km

End point

Bus stop

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Way Types & Surfaces

Way Types

15.2 km

4.52 km

4.52 km

3.50 km

3.12 km

1.48 km

Surfaces

10.4 km

9.79 km

5.54 km

3.81 km

2.50 km

242 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 (80 m)

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Weather

Powered by Foreca

Monday 19 October

15°C

9°C

91 %

Additional weather tips

Max wind speed: 18.0 km/h

to get more detailed weather forecasts along your route

Comments

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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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