In the Chevreuse Valley

A beautiful hike to discover the beautiful sights of the Chevreuse valley: the Chatillonmill, the castle of Dampierre, the blacksmith’s, the villages of Fourcherolles, Senlisse and Choisel, Méridon castle, the village of Chevreuse and its small bridges along the Yvette, and Château de la Madeleine.

Technical sheet

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  • Walking
    Activity: Walking
  • ↔
    Distance: 19.24 km
  • ◔
    Average duration: 6h 25 
  • ▲
    Difficulty: Difficult

  • ⚐
    Return to departure point: Yes
  • ↗
    Vertical gain: + 334 m
  • ↘
    Vertical drop: - 341 m

  • ▲
    Highest point: 176 m
  • ▼
    Lowest point: 78 m

Photos

Description of the walk

(S) Easy parking available near the cemetery of Chevreuse.
This circuit can also be done by mountain bike (although not by hybrid bike).

(1) Park the car in the car park of the Chevreuse cemetery on "Rue de Dampierre" (opposite number 63 bis).
Climb the (steep) “Ruelle aux Boeufs”, pass “Ferme de Jagny" and head down to the end of the road (pottery), turn left (follow the GR11). (2)

At the D91 (on top of 17 Tournants hill) go left and after 40 metres, take the path right. Continue to St-Forget le Mesnils Sevin following the GR 11. On leaving the wood, turn right then immediately left on “Rue de la Roncerie").

(3) At a fork, turn downhill to the left on Allée de la Butte Ronde. Continue following the PNR; halfway down the hill (at a fork) take the left path and continue straight. Down the path, pass by the first road to the left and, at the fork, turn left (crossing a stream) (4) to pass the "Moulin de Chatillon equestrian centre”.

At the D58, turn left then after a few tens of metres head right onto “Rue Pierreuse".
After about 200 m, at the “Parc de Dampierre" post (located on the embankment on the left), leave the street on the left (at a lamppost) to admire the magnificent view of the Château de Dampierre. (5)
Back on the street and go up to "Iron House", a vestige of the World Fair of 1889 (water point at the rock barring the way)
(6) On top of the hill after a flat section, go up to a pylon and, at its base, then take the (PNR) path marked in blue and white on the left past the barrier at a yellow sign that reads “Parc Régional de la Vallée de Chevreuse".
Continue for about 800 m to the junction with the GR. Then take the GR on the left downhill (a fairly steep descent) to the village of Fourcherolles.
Down the road (follow the GR signs) take “Rue de la Butte Rouge" then left at the crossroads, on the right “Route de Fourcherolle").
Continue straight ahead, leaving the GR on the right and crossing a small village by “Rue de la Brèche" (do not take “Rue du Boulet" on the right) to get on the D91 (water and shelter available) (7).

Head along the D91 on the right for a hundred metres and then take the first left (very little traffic) at the exit sign for Dampierre.
Pass “Moulin d’Aulne" and continue towards Senlisse by “Rue du Moulin d’Aulne".
After leaving “Rue du Couvent" on the right, in a turn in front of No. 5 turn left up a path (follow the blue and white markings), cross a wide path then, at the top of the steep slope, turn on the 2nd left to pass in front of the equestrian centre.

(8) In front of the centre, go left and then, at the turn-off to the right, continue straight on the road without taking the road (leave the blue and white marked route).
Down the road, turn right onto a long grassy path; continue on the path that enters the woods. At the end of the road after passing a parker post for “Park de Dampierre", turn right (this is the only option) along the wall of the Château de Dampierre. Down the road, turn left to go down to the D906.
(9) Cross it and follow along for a few metres then take “Rue de la Maison Forte” on the right towards Choisel at the sawmill (probably the last in the region).
Go to the church of Choisel and in the square, turn left rue the laundry (grilles on the square are those of the Château de Breteuil).
Go past an old washhouse and at the crossroads, turn left on “Route de la Rimonière".
(10) Pass in front of the "Le Talu" holiday centre then, at the first junction, opposite “Chemin de St-Forget" and a thatched house, take the hill up to the right

N.B. If you wish, you can reach Chevreuse by the road continuing straight and taking the circuit at the Chemin des Petits Ponts.

(11) Stay on the main path and, at the top of the climb, arrive at a wide forest lane and turn left to Méridon castle.
Coming out of the woods, take a left and a second left to reach Méridon castle.
Cross the road and go straight.
Head down to Chevreuse (take care on gravelly and slippery descent if it is raining) and, further down the road, turn left.
You will discover a beautiful view of Chevreuse and Château de la Madeleine.
On reaching the road, then turn left at the crossroads right.
Pass the park entrance, cross the Yvette then go right on Chemin des Petits Ponts
(12) (opposite the Sente de l’Ave Maria)
.
(If you're tired, you can turn left, on the "Sente de l’Ave Maria" to meet up with Rue du Dampierre D58 taking you left back to the car park (500 m)).

Follow the “Chemin des Petits Ponts”, one of the sights in Chevreuse, along the Yvette (washrooms, tanner). After the “tanner’s”, cross the Yvette over the bridge (on the left) to reach the town hall square.
Take the main street, "Rue de la Division Leclerc”, on the left to “Rue Lalande" (supermarkets open every day, including Sunday morning, bakeries, bars, pharmacies).

(If you do not want to visit the castle of the Madeleine (which would be a shame), you can reach the car park by the "rue de Dampierre" (500 m)).

Take “Rue Lalande" on the right
Enjoy a short stop to taste the cocktails of syrups at No. 9
Pass opposite the Cabaret des Lys, a location made famous by Jean Racine.
Do not forget to visit St Martin's Church, on the left, famous for its ambulatory.
Cross the "Place des Halles", turn left and then turn right, after about fifty metres, “Chemin Jean Racine" (a steep climb) to the Château de la Madeleine; you can take the stairs or stay on the path.
At the castle, you can pay it a visit (free entry) and admire the view of Chevreuse and its valley.
Then continue on the road (water refill point at the square, under the tree) and take “Route de la Brosse" on the left (follow the yellow sign for "Port Royal”)
Continue on the road and take the second road on the left (no entry sign states "except residents") which goes down towards Chevreuse as far as the square
Cross the D13, “Place Simone Weil”, and take the path in front lined with trees (Allée des Tilleuls).

(Warning: if you do the bike tour, you must turn left onto the D13 to reach the car park.)

After a hundred metres, after a bend to the right, arrive at the green gate of a private property, take a left on a narrow, dug-out path (along the cedar hedge of private property)
Down the road, turn left (Rue du 8 Mai 1945) to get to the crossroads of the "Rue de Dampierre" (D58) where you turn right to reach, after a hundred metres, the car park where you'll get a well-deserved rest.

Waypoints

  1. S/E : km 0 - alt. 92 m - Cemetery car park
  2. 1 : km 2.02 - alt. 165 m - Pottery
  3. 2 : km 3.92 - alt. 165 m - Left fork
  4. 3 : km 4.81 - alt. 92 m - Crossing a stream.
  5. 4 : km 5.47 - alt. 125 m - View of Dampierre castle.
  6. 5 : km 5.89 - alt. 154 m - Iron House
  7. 6 : km 6.91 - alt. 107 m - Bottom of the path, on the left
  8. 7 : km 7.57 - alt. 100 m - Shelter and water point.
  9. 8 : km 9.89 - alt. 173 m - Equestrian centre
  10. 9 : km 12.09 - alt. 111 m - D 906.
  11. 10 : km 12.82 - alt. 108 m - Left, Route de la Rimonière
  12. 11 : km 13.65 - alt. 109 m - Crossroads, uphill on the right
  13. 12 : km 15.01 - alt. 154 m - Road, opposite
  14. 13 : km 16.47 - alt. 79 m - To the right, Chemin des Petits Ponts
  15. 14 : km 17.01 - alt. 79 m - Crossing the - Yvette (l')
  16. 15 : km 17.42 - alt. 84 m - Rue Lalande on the right
  17. 16 : km 18.04 - alt. 142 m - Château de la Madeleine
  18. 17 : km 18.47 - alt. 91 m - Path opposite under a porch
  19. 18 : km 18.64 - alt. 84 m - On the left, Rue Jean Mermoz
  20. S/E : km 19.24 - alt. 92 m - Cemetery car park

Practical information

Several water points and shelters.

All shops available in Chevreuse including a "Carrefour" supermarket open every day, even on Sunday morning

Hiking poles can be useful because some climbs are a bit steep and sometimes passages are muddy after rain.

In the nearby area

The Chatillon Mill, the castle of Dampierre, the Maison de Fer, the village of Choisel, Castle Méridon, the village of Chevreuse, small bridges, church and Château de la Madeleine.

 Always stay careful and alert while following a route. Visorando and the author of this walk cannot be held responsible in the event of an accident during this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

Reviews and comments

4.8 / 5
Based on 196 reviews

Reliability of the description
4.8 / 5
Clarity of route map
4.7 / 5
Route interest
4.7 / 5
User 26569445

Overall rating : 4 / 5

Date of walk : Jul 13, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : No

A very good route with few visitors.
The climb to reach point 8 is very steep.
The village of Chevreuse lacks pubs/bars to quench your thirst.
The water bridges indicated on the map are not working.

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Kristie
Kristie

Overall rating : 4.3 / 5

Date of walk : Jun 07, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : No

A beautiful hike that is easy to follow.
No problems following the route, which is on dry paths.
A bit too much walking through residential areas and therefore on tarmac for my liking on some sections around Senlisse and Choisiel.
Please note: the cemetery car park was full when I arrived. It is used by locals who repair their cars there.

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JulWRC
JulWRC

Overall rating : 4.3 / 5

Date of walk : Apr 11, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : No

Nice, pleasant walk.
There were quite a few dwellings along the way, but they didn't get in the way.

On the other hand, the nearby airfield with its constant stream of small planes and helicopters wasn't great.

There was a mountain bike race on the day, but it was fine and there were no problems living together.

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XavierRT
XavierRT

Overall rating : 5 / 5

Date of walk : Feb 16, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

A very pleasant route, in the heart of nature, which we extended on arriving from the Saint Rémy les Chevreuses RER station.

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Ravidu91
Ravidu91

Overall rating : 5 / 5

Date of walk : Oct 24, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

A very nice, well thought-out walk, mostly through woods, with some really minimal sections along roads.

Please note that the Butte Rouge area in Dampierre with the GR section of the Bois de la Crêne and the Rue de l'Erable (end of point (5) and beginning of point (6)) are effectively inaccessible for the time being due to bad weather. In addition to the uneven terrain on the way out of the woods, the carriageway on rue de l'Erable is completely broken up and impassable, with barriers in place. Rather than take the steep descent of the GR, we recommend following the path furthest to the left, which is less uneven and leads to the other side of the route de Fourcherolles. Once out of the woods, turn right onto the road, then turn left at the crossroads onto the route de Fourcherolles and follow the recommended route.

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mmlecardonnel
mmlecardonnel

Overall rating : 5 / 5

Date of walk : Oct 23, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

A fine walk with no particular difficulties apart from a few climbs.
The path in the woods above Fourcherolles is theoretically closed, as is the short stretch along the bouillon de Valence because the bank collapsed during the floods...
No other difficulties have been encountered on the rest of the route, which remains largely passable despite the recent bad weather...

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CHERGUI Aubervilliers
CHERGUI Aubervilliers

Overall rating : 4 / 5

Date of walk : Aug 25, 2024
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : Yes

The circuit was very good
But there must be a lot of mud when it rains
I had some sun, walking for 2 hours in an open field was difficult.

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KitKatLaPatate
KitKatLaPatate

Overall rating : 4.7 / 5

Date of walk : Jul 13, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★☆ Good
Busy trail : No

Très sympa, première balade et très facile de se repérer. Un peu trop de passage en ville mais c'était top

Serenity forever
Serenity forever

Overall rating : 4 / 5

Date of walk : Jun 30, 2024
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Busy trail : No

Very nice parish specific to Brittany. We were 4. As far as the mills are concerned, note that they are remains and as far as the equestrian centre is concerned, we looked for it🥲. Note that if you want to visit the Chateau de Dampierre park, you have to pay an entrance fee and there is no way to cross it if you want to go from point 4 to point 9. You have to go to point 7 via the town centre and we crossed through the woods (beware of the very muddy path) to get to point 9.
The walk over the little bridges is very nice (exhibition to see at the Sechoir a Peaux) and then the climb up to the fortress Eglise de la Madeleine offers us a magnificent view. Beautiful St Martin's church and a short tour of the centre of Brittany
to discover the siropier, the cabaret des Lys, ...).
The weather was ideal for this long loop.

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FarMeb
FarMeb

Overall rating : 5 / 5

Date of walk : May 05, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

A tour that combines all the ingredients for success: steep climbs, bucolic landscapes, heritage sites and technical trails. A marvel and a must!

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Tilili
Tilili

Overall rating : 4.7 / 5

Date of walk : Apr 12, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★☆ Good
Busy trail : No

We enjoyed the walk as a couple.
Very easy to use application and map, thank you!

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Ben j
Ben j

Overall rating : 4.7 / 5

Date of walk : Apr 14, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★☆ Good
Busy trail : Yes

A very nice walk in the Ile de France region, with plenty of variety (forests, fields, châteaux, beautiful villages) and accessible by RER.
The view of the Château de Dampierre is perfect for a picnic!

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Une marcheuse
Une marcheuse

Overall rating : 5 / 5

Date of walk : Mar 15, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

Very nice walk. Muddy paths in places, but otherwise very pleasant overall.
The cemetery car park was almost full when we arrived around 11 am.
The water points are dry.

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Ilaria_B
Ilaria_B

Overall rating : 5 / 5

Date of walk : Mar 09, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

The itinerary was interesting and very beautiful. There are lots of things to see!

It took us less than expected, walking hard and eating in the street.
At this time of year, however, it should be noted that the route is full of mud and crossing the paths is difficult as they are also frequented by those following the route by bike. The passage of bicycles makes the ground slippery and in some places it is impossible to avoid the path.

You will need to rethink the route, trying to avoid the places where the bikes pass. We recommend that you wear waterproof footwear, but above all footwear that supports your ankles well, as you can easily sprain them.

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elsa1048
elsa1048

Overall rating : 4.3 / 5

Date of walk : Feb 16, 2024
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Busy trail : No

It's a very pretty walk, with a wide variety of paths between fields with views, forest and small villages, which makes it all very pleasant.
The path between forest and fields is quite muddy in wet weather.
A great walk!

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