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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)

11

riders

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

02:27

32.4km

330m

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: May 13, 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

13.5 km

Point Culminant de l’Essonne

Peak

4

15.2 km

Viaduc de la Prédécelle

Highlight • Bridge

It is a mini viaduct which offers beautiful views

Translated by Google •

Tip by

5

18.1 km

Villevert Pond

Highlight • Other

A good place for a break

Translated by Google •

Tip by

6

22.7 km

Sandpit

Highlight • Other

Nice little sandpit with some bumps

Translated by Google •

Tip by

7

24.3 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

32.4 km

End point

Bus stop

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Way Types & Surfaces

Way Types

16.1 km

4.58 km

4.32 km

3.08 km

3.00 km

1.28 km

Surfaces

10.1 km

10.1 km

5.74 km

3.69 km

2.52 km

214 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

Wednesday 20 May

23°C

8°C

0 %

Additional weather tips

Max wind speed: 11.0 km/h

to get more detailed weather forecasts along your route

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

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