Path along the Ru des Vaux – Small bridge loop from Les Ulis

Mountain biking trails

Path along the Ru des Vaux – Small bridge loop from Les Ulis

Hard

5.0

(1)

riders

Path along the Ru des Vaux – Small bridge loop from Les Ulis

06:31

86.7km

840m

Mountain biking

Hard mountain bike ride. Very good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

Last updated: September 25, 2026

Tips

Includes very steep uphill segments

You may need to push your bike.

After 45.4 km for 79 m

After 64.2 km for 445 m

Waypoints

Start point

Get Directions

7.89 km

Point Culminant de l’Essonne

Peak

20.8 km

Réserve biologique dirigée du Bois Boisseau

Nature Reserve

21.6 km

Near the Vaux waterfalls in Cernay

Highlight • Trail

Wonderful landscape ! and in the middle flows a river 😁

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21.7 km

Petit Moulin des Vaux de Cernay

Highlight • Structure

A former mill on the road

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26.0 km

Bois des Gaules

Forest

27.3 km

Bois de la Brelinquinerie

Forest

42.0 km

Path along the Ru des Vaux

Highlight • Trail

The trail that runs along Ru des Vaux in Bois Domanial des Cinq-Cent Arpents is perfect for an engaging mountain bike ride through dense forest with natural obstacles and rolling …

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42.3 km

Small bridge

Highlight • Bridge

In the Pont Granval reserve, a small stone bridge crosses a quiet river and offers a picturesque passage. This technical path, with climbs and descents around the river, winds through …

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43.3 km

Single MTB du Ru des Vaux

Highlight (Segment) • Trail

But very pleasant in dry weather

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55.6 km

Nestled in the Chevreusee Valley, the Maincourt-sur-Yvette washhouse is a beautiful piece of rural heritage. This stone washhouse, carefully restored, is surrounded by greenery. A little gem to discover during a stroll in the region.

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60.1 km

Washhouse at the Fairies' Spring

Highlight • Historical Site

An exceptional laundry in more ways than one! Be sure to stop there and read the insert.

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76.6 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 …

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86.7 km

End point

Way Types & Surfaces

Way Types

31.6 km

20.7 km

16.4 km

12.0 km

5.36 km

673 m

< 100 m

Surfaces

34.7 km

31.8 km

8.56 km

8.06 km

2.96 km

765 m

Elevation

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

Highest point (180 m)

Lowest point (90 m)

Weather

Tuesday 3 November

9°C

5°C

-- %

Additional weather tips

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Comments

March 26, 2023,La cernaysienne 2023! 🏄‍♂️😁

Fat is life, long live the fat 😅 here is the idea of this vintage of the cernaysienne!
Going to bed at 1:30 a.m. after a drunken dinner, I warned the buddy that I couldn't be on the bridge to leave by bike at 6 a.m. (especially with the jet lag and 1 hour less sleep) 😁
He will not …

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March 27, 2022,La Cernaysienne 55km 2022😎

La Cernaysienne, in the Cheuvreuse valley.
This is my first time doing this hike, it's great. 👍
Very nice, there is nothing to throw away, the course is really great, lots of singles, good odds (1300 D+), good descents... SUPER
2 well-positioned ravitos, good after the second there was 20km left, so we had to gain strength, especially since there …

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