The Dolmen des Trois Pierres and the Réveillon Valley

The main destination of this hike is an imposing Neolithic dolmen. Passing through woods and fields, it also offers the opportunity to discover two charming villages in the Réveillon Valley.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 14.31 km
  • ◔
    Average duration: 4h 45 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 219 m
  • ↘
    Descent: - 218 m

  • ▲
    Highest point: 145 m
  • ▼
    Lowest point: 65 m

Photos

Description of the walk

Start from the centre of the village of Delincourt. Park in the spacious car park accessible via a stony track that starts opposite the school (sign).

No signposts

(S/E) Follow the short access track to the car park in the opposite direction to return to the centre of the village. Turn right and go around the church via the Enclos Jacques Seïté. With your back to the church entrance, turn right (north) and note a wash house on the right.

Yellow signposts

At the next crossroads, turn right onto Rue du Mesnil. Ignore the dead-end streets on the left and follow a stream on your right. Turn left, away from the stream, and continue through the hamlet. At number 528, ignore a path on the right; the tarmac gives way to a dirt track.

(1) At the fork that appears immediately, take the path on the right that runs flat between the fields. After a section where the path is quite grassy, enter a wood and climb steeply. Further on, continue through the wood on a good, fairly flat path.

(2) Leave the woods and immediately note the small Menhir de la Pierre Droite on your left. Continue between the fields and come out onto a small road (no signposting here).

(3) Turn left at an acute angle and follow the small road. After about 250m, at a fork, take the farm track on the left. After about 300m (at an elevation of 135m), leave the track as it turns right and turn left onto a grassy path heading towards a wood (no signpost here). Walk along the wood on your left (and look for a signpost) then walk along another wood on your right.

(4) At the corner of the woods, ignore a path coming from the right and continue west between the fields (view of Delincourt on the left). At a junction with a small paved road coming from the left, continue straight ahead (no sign here).

(5) At the next junction, turn right and cross a short section of woodland. Stay on the main path, heading north then north-east, alternating between sections on the edge of the wood and passages through it. After a private property gate on the left, ignore a path on the right and follow a golf course on your right. Then head straight down into the wood and ignore a few tracks on either side.

N.B. Between points (6) and (10), the path you are following, which remains signposted, does not appear on the IGN map. The route is indicative.

(6) At the crossroads at the bottom of the descent (railway bridge opposite), turn left towards the dolmen (sign but no marker here; the old electricity poles lying across the path are only intended for vehicles). Start by going downhill, then continue on relatively flat ground through the woods. Ignore a very overgrown path on the left.

(7) At the next intersection, turn left onto a grassy path towards the dolmen (sign). Climb gently and discover the imposing dolmen in the undergrowth.

(8) Retrace your steps.

(7) Back at the intersection, turn left and continue through the woods. The grassy path becomes gravelly. Descend steeply and approach the railway line. Follow a fence on your left, turn left with the path and begin a steep climb.

(9) Halfway down the slope, leave the steep path straight ahead and turn right to descend again (the map is inaccurate here). Continue on flat ground. At the edge of the woods, turn left and take a track that runs alongside a road construction site below on the right. This will bring you to a junction with a small road.

(10) At the crossroads (road opposite not shown on the map), follow a small road to the left. Climb steeply with two bends and pass a reservoir on the left. At the top of the hill (horse pastures), continue south-southeast between the fields on Chemin des Groux.

(11) Cross the Sente de la Grosse Haie and pass another reservoir on your left. Walk along the edge of the woods, descend and enter the woods. Then continue descending between the fields. The path gives way to tarmac; follow the Chambors cemetery on your left.

(12) Continue gently downhill into the village. At the crossroads, take Rue des Sources opposite (beautiful gate at no. 12). At the end of the street, pass a cross on your right and turn left onto Rue Bertinot-Juel. At the end, go around the small church of Chambors on the left and follow Rue du Blouet. Climb gently and, at the next crossroads (old spring on the right), turn right towards a cross.

(13) At the fork (central cross), take the street on the left, still climbing slightly. After the last houses, the tarmac gives way to a path. Note the map of another hike on the right and continue climbing gently between the fields (beautiful view on the right). Enter a wood and walk between two private property fences.

(14) Turn onto the first path on the right, still between two fences (on the same beech tree trunk, you will find a yellow bar, triangle and cross: follow the bar, which indicates the right direction). After walking along a large field on your left, you will come to a Y-junction (calvary).

(15) Then turn right and descend with the church of Delincourt clearly visible. You will come to a small road and follow it to the right, still descending. At the next crossroads (cross), turn left

No signposts

Cross Rue du Mesnil on the left, which you took on the way there, and continue straight ahead to the Delincourt school. Then follow the stony track on the right which leads to the car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 72 m - Delincourt car park
  2. 1 : km 0.93 - alt. 86 m - Fork at the exit of Le Mesnil
  3. 2 : km 2.5 - alt. 133 m - Exit from the woods - Menhir de la Pierre Droite
  4. 3 : km 3.1 - alt. 131 m - Small road
  5. 4 : km 4.4 - alt. 134 m - Corner of a wood
  6. 5 : km 5.23 - alt. 129 m - Intersection
  7. 6 : km 7.27 - alt. 98 m - Crossing near the railway line
  8. 7 : km 7.83 - alt. 86 m - Intersection - Access to the dolmen
  9. 8 : km 7.99 - alt. 100 m - Dolmen des Trois Pierres
  10. 9 : km 8.9 - alt. 102 m - Intersection halfway up the slope
  11. 10 : km 9.76 - alt. 83 m - Intersection
  12. 11 : km 10.67 - alt. 144 m - Crossroads - Reservoir
  13. 12 : km 11.78 - alt. 82 m - Chambors cemetery
  14. 13 : km 12.34 - alt. 80 m - Fork - Cross
  15. 14 : km 13.03 - alt. 121 m - Intersection in the Bois des Bouleaux
  16. 15 : km 13.6 - alt. 120 m - Y-junction - Calvary
  17. S/E : km 14.31 - alt. 72 m - Delincourt car park

Notes

Access by public transport: (Transilien line J, between Paris-Saint-Lazare and Gisors):
- From Trie-Château station, exit on the side of track 1 (towards Paris-Gisors) and follow the yellow signs to the junction (10).
- From Chaumont-en-Vexin station, follow the small road on the south side that leads to Bois de Gomersfontaine and join the route at the point (3).
Please note: depending on the time of day, there may only be one train every hour or every two hours. For detailed timetables, please consult the Transilien website.

Hiking boots are required. Part of the hike is in open terrain: in summer, avoid the hottest times of day and bring appropriate sun protection. The total elevation gain is moderate, but some slopes are quite steep.

There is a bar and small grocery store in Delincourt (S/E), opposite the church. It is open Tuesday to Saturday all day except between 1pm and 4pm, and on Sunday mornings.

In the villages and woods, signposting is sparse but generally present at the main intersections. Between the fields, it is almost non-existent due to a lack of support. A 1:25,000 map is therefore essential (at least the one accompanying this description).

Additional information and variations:
- Visit to a standing stone (suggested by stan_950) - Facing the antechamber of the dolmen (6), take the path on the left (yellow cross). After about 250m, take a path on the left that leads to the menhir, which is marked by a triangle on the 1:25,000 map. Retrace your steps to the intersection (7).
- Western loop - At the very start of the hike, at the junction with Rue du Mesnil, follow the yellow markings straight ahead. At the next fork (cross), take the road on the right. When it turns right, leave it and follow a path on the left. Climb up to the Y-junction (15). Then take the path on the right (not marked) and rejoin the route at the junction (5). This shortened version is approximately 10 km long.
- Changing conditions on the outskirts of Trie-Château - Depending on the progress of the roadworks shortly before the junction (10), adapt to the conditions encountered on site. Once the roadworks are complete, the junction itself is likely to be replaced by a roundabout...

Hike completed by the author on 8 July 2017.

Worth a visit

- Saint-Léger Church (11th-19th centuries) in Delincourt (S/E).
- Wash house in Delincourt, shortly afterwards (S/E).
- Menhir de la Pierre Droite (2).
- Dolmen des Trois Pierres (8). Also known as the "Dolmen de la Pierre Trouée" (Dolmen of the Pierced Stone), this is a covered passageway that is now remarkable for its vestibule topped by an imposing slab and which has retained its porthole slab.
- Beautiful houses and a small church in Chambors, between (12) and (13).

Reviews and comments

4.7 / 5
Based on 33 reviews

Reliability of the description
4.8 / 5
Ease of following the route
4.8 / 5
Route interest
4.6 / 5
User 4369764

Overall rating : 4 / 5

Date of your route : Sep 08, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A varied route through woods and fields.

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ozogiminy
ozogiminy

Overall rating : 5 / 5

Date of your route : Aug 08, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Nice walk, Delincourt and Chambors are two charming little villages

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User 3740499
• Edited:

Overall rating : 4.3 / 5

Date of your route : May 17, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

Very beautiful route; the description is very precise and clear... fortunately, because the signage is very good in some places and non-existent in others.
Thank you for this beautiful hike.
Nadine

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cattherine
cattherine

Overall rating : 4.3 / 5

Date of your route : Mar 17, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

A little short for us, so we added a passage by château sorting

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yaya95
yaya95

Overall rating : 4.7 / 5

Date of your route : Nov 18, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

hike done on the weekend of 16/17 November - the paths were very passable (little mud) and even on several occasions we found wide, pleasant paths.
This hike could be interesting in summer as there are many shaded areas.
A little surprise: you pass one of the variants of the Compostela trail (Evreux/Chartres): after point 5, as you enter the forest, there is a small stele on the right...
the covered walkway with three stones is nice.
an alternative is to do it in the opposite direction so that the difficult parts are at the beginning.

in any case, it's a pleasant surprise.

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SylvieDelap
SylvieDelap

Overall rating : 4.7 / 5

Date of your route : Feb 21, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful hike, very well described. The covered walkway is impressive.

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bernard951
bernard951

Overall rating : 4.3 / 5

Date of your route : Sep 24, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful walk with varied landscapes. The dolmen is easy to find and the path to the standing stone was passable.

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Lepontdav
Lepontdav
• Edited:

Overall rating : 4.3 / 5

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

A beautiful hike, alternating between woodland, forest edges and cross-country trails. The description of the hike is very detailed, which is fortunate as there are often no signposts!
This hike is worth doing, if only to see the dolmen at point 6. The path leading from the dolmen to the standing stone is impassable due to numerous trees blocking the way.

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François Thierry
François Thierry

Overall rating : 4.3 / 5

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

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Bonnay
Bonnay

Overall rating : 4.3 / 5

Date of your route : Sep 26, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very beautiful hike, enjoyable in summer when the weather is warm, with pleasant woodland. Unless I am mistaken, at the start, with the church door behind you, you turn right, so the wash house is on your left and not on your right? A small mistake on my part: at the sign indicating the dolmen at 950 m (no. 9), I turned right and missed no. 10. I arrived at no. 11 by following the app again, but it was no big deal!
Thanks again for this walk

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Salomon kaine
Salomon kaine
• Edited:

Overall rating : 5 / 5

Date of your route : Jan 24, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Well done for the detailed route description, it's really accurate!
We had a very pleasant hike
I would recommend it to everyone
Thanks to the author for this route

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Geono60
Geono60
• Edited:

Overall rating : 5 / 5

Date of your route : Jan 21, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A wonderful walk through woods and fields, with the added bonus of an impressive Neolithic monument. Although it was the middle of winter and nature wasn't at its best, we loved this hike. Just two small details... The road under construction at point 10 is now finished, open to traffic and very busy. Luckily, we only pass by it briefly. The tour of the church, charming as it is, is a little confusing at first, in the literal sense of the word! It is not part of the walk and should be considered a little treat before the real start. The village of Delincourt is really charming, typical of the Vexin region.
Thank you very much for this tour, and well done for the description, which leaves no room for interpretation.

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Marc1953
Marc1953

Overall rating : 5 / 5

Date of your route : Aug 17, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Very enjoyable hike. I downloaded it but didn't follow it. I saved the one I did under No. 13421545. 12.9 km, 3 hours 30 minutes. 80% in the woods. Best regards, Marc1953

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VincentLafon
VincentLafon

Overall rating : 5 / 5

Date of your route : Oct 19, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant hike, 95% of which is in natural surroundings, with varied terrain, superb forest trails and pretty villages.

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zebulon1961
zebulon1961

Overall rating : 4.7 / 5

Date of your route : Jul 21, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

this hike is nothing exceptional, but it gives you the pleasure of walking mostly in nature and discovering the Vexin region. Delincourt is a pretty village with beautiful stone houses, and the three-stone dolmen is the highlight and most interesting part of the hike. We were the only ones on the trail, and the peace and quiet all day long was wonderful!

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