Circular route between Saint-Hilarion and Épernon

A long tour starting from Saint-Hilarion that will take you to Raizeux through fields and forests, then to Épernon, which you will cross before following the Drouette river along a small, intimate path, and finally back up to Saint-Hilarion.

Details

32094704
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 16.19 km
  • ◔
    Average duration: 5h 00 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 141 m
  • ↘
    Descent: - 146 m

  • ▲
    Highest point: 166 m
  • ▼
    Lowest point: 113 m
  • ⚐ Country: France
  • ⚐ District: Saint-Hilarion (78125)
  • ⚑
    Start/End: N 48.620315° / E 1.734174°
  • ❏
    IGN map(s): Ref. 2115O, 2116E, 2215OT, 2215OTR, M2215OT
  • Hour-by-hour weather

Photos

Description of the walk

Start from the free car park just after the primary school.

(S/E) Head north-west, cross the Rambouillet road (D906) (there is a traffic light and a pedestrian crossing on your right) and then take the small road directly opposite.

(1) At the intersection, take the small forest road towards Les Hautes Bruyères. When you reach the end of the forest on your right, turn onto the path through the fields that opens up on your left. Go straight ahead at the next intersection and you will arrive at an intersection on the edge of the forest at a place called La Mare Fabulet.

(2) Take the path on the right and follow it until you reach the road at the entrance to the hamlet of Les Roches, which you will cross by turning left.

(3) Turn left onto the path that goes up into the forest, just before the road that also branches off to the left, and turn right onto the cross path.

(4) At the crossroads, turn left and cross Route des Vallières to take the path directly opposite, which climbs between a large field on the left and a few houses on the right, leading to the heights of Épernon.

(5) At the crossroads, take the path on your left, then the one on the right at the next intersection.

(6) At the road, continue straight ahead and walk along the Plateau de la Diane neighbourhood on a small path that borders the gardens and offers a view of Épernon on your left.

(7) Take the stone steps down to the town centre. Be careful if you have children with you, as the steps are a little steep. Once at the bottom, continue down Rue à la Paille and then, just opposite, follow the very small Rue de la Regratterie.

(8) Just after the house on your left, you will find a small parking area which you cross to reach the urban footpath that runs alongside the Louis Drouet Primary School.

(9) When you reach Rue Nouvelle du Sycomore, cross it and take the small path directly opposite, which joins the Drouette river. Follow it to the right.

(10) Take Route du Grand Pont and follow it to the left. Stay on the pavement! At the roundabout, continue to the right towards the station, then take the street on the left and go up Chemin des Carrières towards the woods.

(11) At the top, take the path directly in front of you. Be careful, the one on the left is a dead end! Come out of the woods into a small housing estate.

(12) On the left, between two houses, you will see a path that descends steeply. Walk down it carefully and be vigilant if the ground is wet! Otherwise, there are no particular difficulties. Once at the bottom, cross the road and join Chemin de la Palombe opposite, slightly to your left.

(13) Enjoy the peace and quiet and shade of this little path that runs alongside the Drouette behind the houses. At the end of the meadow path, briefly return to the road on the left, pass Rue de la Mairie and take the path on your left just after.

(14) Cross the small bridge and turn right.

(15) After the stud farm, take the path that goes up on your left just before the gate of a house. Once at the top, at the intersection at the edge of the fields, turn right and then left across the fields towards the Malmaison farm opposite you.

(16) Go around the farm on the right, then take the path that leads into the forest. When you reach the railway line, follow it to the right until you reach the road to the hamlet of Le Fléau. Take this road to the left, then the path that continues along it, then the fork to the right.

(17) After passing under the railway line, turn right onto a small path between two houses, then come out in front of the Étang de Saint-Hilarion and join the car park 150 metres to your left, after the church (S/E).

Waypoints

  1. S/E : km 0 - alt. 138 m - Primary school car park - Guéville (rivière) - Affluent de la Drouette
  2. 1 : km 0.8 - alt. 161 m - La Martinerie
  3. 2 : km 3.07 - alt. 163 m - La Mare Fabulet
  4. 3 : km 4.69 - alt. 131 m - Hameau des Roches (Raizeux) - Guesle (rivière) - Affluent de la Drouette
  5. 4 : km 5.82 - alt. 133 m - Raizeux
  6. 5 : km 7.08 - alt. 161 m - Arrival in Épernon via the plateau
  7. 6 : km 7.43 - alt. 159 m - Parc de la Diane
  8. 7 : km 7.74 - alt. 156 m - Stairs to the town centre
  9. 8 : km 7.99 - alt. 116 m - Small streets - Église Saint-Pierre (Épernon)
  10. 9 : km 8.17 - alt. 115 m - École Louis Drouet
  11. 10 : km 8.44 - alt. 114 m - Drouette (rivière)
  12. 11 : km 9.05 - alt. 146 m - Towards Épernon station - Gare d'Epernon
  13. 12 : km 9.95 - alt. 144 m - Droue-sur-Drouette
  14. 13 : km 10.23 - alt. 118 m - Along the way - Drouette (rivière)
  15. 14 : km 11.21 - alt. 119 m - Small footbridge
  16. 15 : km 12.19 - alt. 127 m - Stud farm
  17. 16 : km 13.61 - alt. 156 m - Malmaison Farm
  18. 17 : km 15.51 - alt. 130 m - Étang de Saint-Hilarion
  19. S/E : km 16.19 - alt. 138 m - Primary school car park

Notes

Mostly small, well-marked paths, with just a short stretch of road between Épernon and Droue-sur-Drouette, but there are pavements all the way! A few hills, but nothing too difficult.

(2) Please note that when we did this hike, large forestry vehicles had recently passed through and the path, although perfectly passable, was badly damaged...

Worth a visit

(3) This path has many tracks on the foothills to your left, which are mountain bike trails. If you have children or are young at heart, don't hesitate to go up a little to wander through the rocks!

(13) In addition to the undeniable charm of this very bucolic path, you will discover a cute little wash house.

(14) You may notice that several areas on the other bank are more or less landscaped as wild gardens. This gives the entire passage along the Drouette a very special and pleasant atmosphere!

Reviews and comments

4.1 / 5
Based on 8 reviews

Reliability of the description
4.1 / 5
Ease of following the route
3.9 / 5
Route interest
4.4 / 5
epmen
epmen

Overall rating : 5 / 5

Date of your route : Oct 02, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

a great pleasure on this course, with a very balanced mix of woodland and open fields.
At this time of year, the forest and the views are superb.
The GPX is easy to follow,
the deterioration of the path between 14 and 15 is indeed a concern, you have to be flexible. Once repaired, it will be great.

Machine-translated

AppoAppo
AppoAppo

Overall rating : 4 / 5

Date of your route : Jul 27, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

This is an ideal route for sunny days as it mainly passes through woodland and along tree lines with plenty of shade. You need to pay close attention at certain points so as not to miss the path or trail indicated on the map. There is some undergrowth with branches and tree trunks across the path between points 14 and 15, which requires a bit of acrobatics (stepping over, bending down, etc.).

Machine-translated

BlanGilSaGe
BlanGilSaGe

Overall rating : 4.3 / 5

Date of your route : Oct 28, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average
Very busy route : No

A beautiful hike. Very muddy in places when it has rained. Walking sticks may be essential. The passages through fields, forests and urbanised areas are pleasant. Opportunities to see remarkable places.

Machine-translated

ThierryJJ
ThierryJJ

Overall rating : 3.3 / 5

Date of your route : Oct 16, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

There are a few issues with signage, so you need to search a little and look carefully at the mandatory paper map.
Best regards

Machine-translated

Obaldia
Obaldia

Overall rating : 4 / 5

Date of your route : Sep 25, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

A beautiful circular walk alternating between shaded areas and open spaces, with relatively few paved sections. It is possible to avoid using a car by travelling to the start point from Epernon railway station. Please ensure you wear bright clothing during the hunting season.

Machine-translated

NN_PPA
NN_PPA

Thank you for your feedback! Your question is very insightful... And I admit that we have no idea , if any local hunters are reading this, please feel free to enlighten us!

Machine-translated

laurentaudry67
laurentaudry67

Overall rating : 4.3 / 5

Date of your route : Aug 20, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant route that I will be doing again this weekend. Not necessarily easy to follow, but with the Visorando app, there's no problem. I took a few liberties around Epernon :-). Just one question: is this route possible during hunting season? There are hunting platforms everywhere :-((

Machine-translated

NN_PPA
NN_PPA

Thank you for your feedback! I will review this and try to be more specific where necessary 😊

Machine-translated

Vasi
Vasi

Overall rating : 3.7 / 5

Date of your route : Apr 29, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful hike through forest trails, fields and small paths between houses! Unfortunately, the description is sometimes not clear enough and could be improved with phrases such as "ignore the path that branches off to the left", but as we had the GPS route from the Visorando app, we were able to find our way easily.

Machine-translated

Bertille
Bertille

Arriving radiant as we entered the forest
Looking at the map with my husband, we think we took the first path when it should have been the second, but perhaps it was poorly marked
But I repeat, it was a superb hike that we will do again, by the way
Thank you

Machine-translated

NN_PPA
NN_PPA

Hello Bertille, thank you for your feedback! Could you tell me the locations (waypoints) where you got lost, so that I can modify the description?

Machine-translated

Bertille
Bertille

Overall rating : 4.3 / 5

Date of your route : Apr 17, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : Yes

We got lost in two places, mainly in a forest full of paths with no signposts and a map that wasn't detailed enough.
This was a superb hike.

Machine-translated

Other walks in the area

For more walks, use our search engine .

The GPS track and description are the property of this route's author. Please do not copy them without permission.