View of the Petite Vallée – Descent of the Rocher de Saulx loop from Sainte-Geneviève-des-Bois

Mountain biking trails

France

Ile-de-France

Palaiseau

Sainte-Geneviève-Des-Bois

View of the Petite Vallée – Descent of the Rocher de Saulx loop from Sainte-Geneviève-des-Bois

Moderate

4.2

(20)

161

riders

View of the Petite Vallée – Descent of the Rocher de Saulx loop from Sainte-Geneviève-des-Bois

03:38

48.7km

520m

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 219 m

After 29.2 km for 65 m

After 33.1 km for 221 m

After 48.6 km for 219 m

Waypoints

Start point

Train Station

Get Directions

4.31 km

Bois de Sillery

Forest

5.33 km

Bassin de Balizy

Lake

11.7 km

View of the Petite Vallée

Highlight • Viewpoint

Nice view, near many small paths and single track.

Translated by Google •

Tip by

12.1 km

Descent of the Rocher de Saulx

Highlight • Trail

Decent very nice with banked turns that zigzag on the way down.
to do by mountain bike - guaranteed sensation: o)

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17.3 km

Monsieur and Saint-Eloi Wood mountain bike playground

Highlight • Other

A real little Bike Park. It is managed by an association, a panel with the rules related to the place is present at the top of the slopes.

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24.7 km

Fast Singletrack Trail

Highlight • Trail

Super little single that spins and zigzags simple fast fun and a little walk at the end just to add some pep!

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26.3 km

Les Arrachis

Highlight • Trail

A nice short climb slightly zigzag, it is quite steep but nice and allows you to do a nice descent and single just after.

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30.8 km

Côte de l'Escargot

Highlight (Segment) • Climb

The climb to the Col de l'Escargot or just "l'Escargot" is indeed a classic of the area, it climbs for around 0.5km with an average of 8 or 9%
This …

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33.1 km

Bassin Sec du Mort Rû

Lake

34.4 km

Bois du Gros Chêne

Forest

48.7 km

End point

Train Station

Way Types & Surfaces

Way Types

19.8 km

9.51 km

8.64 km

7.35 km

3.21 km

304 m

Surfaces

15.1 km

10.3 km

9.95 km

7.53 km

5.25 km

512 m

143 m

Elevation

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

Highest point (160 m)

Lowest point (40 m)

Weather

Tuesday 3 November

11°C

5°C

0 %

Additional weather tips

Expect light wind and shifting conditions.

to get more detailed weather forecasts along your route

Comments

March 25, 2022,YO 45 en mode cool 😎 🍺 ☀️

VRTT, a day off as we like them!
Sun ☀️
Chatting 😄
Finished with a beer on the terrace 🍻
Went for a little mountain bike ride on this RTT day with my shock duo. 😎
In the top !!

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October 1, 2023,Rando VTT Yvette 2023 parcours 45km

Nice route, great signage and stocked refreshments.
The komoot average is wrong because it includes the time spent at the refreshments 😅😜

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October 6, 2024,Rando de l'Yvette à l'Orge

A bit of a struggle this morning. I can't keep up with my friends.

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October 31, 2021,Sortie VTT Club - YO 60 ++

MTB club outing on the trail of the YO 60 via La Tour Montlhéry 👍🏻
Good outing on a slightly greasy ground but Ok and with + D + 😈
👍🏻

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June 4, 2023,Rando maudite, la galère

Based on Yo's track, I discovered some pretty nice corners but I also struggled on paths that were not passable. Therefore average rotten because a lot of walking... To do in winter when the nettles and brambles are not 2 meters high 😅

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