Rougiers, Castrum Saint-Jean

This hike takes you to the ruins of Castrum Saint-Jean, 600 metres above sea level, on the spur of the hill overlooking the present-day village of Rougiers. Don't forget to visit the Guillandière spring in the communal woods, east of Saint-Jean hill.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 17.02 km
  • ◔
    Average duration: 6h 25 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 532 m
  • ↘
    Descent: - 529 m

  • ▲
    Highest point: 676 m
  • ▼
    Lowest point: 354 m

Photos

Description of the walk

Park your vehicle in the Rougiers car park, near the D1.

(S/E) From the car park, head south to the junction with Avenue de Brignoles. Cross and continue straight ahead along Rue Sainte-Anne, which takes you through the village, past a fountain and a beautiful mosaic on a bell tower.

(1) At the top of the village, continue straight ahead, passing a large cross on your left, and follow the signs for "cité médiévale" (medieval town). After 100 metres, leave the road that branches off to the left (Les Glacières) and stay on the tarmac road that turns right.
At the hairpin bend, take the yellow-marked path on the right.
Climb to the top of the valley, leaving two paths on your right, until you reach a small concrete cistern, which is the Rougiers water supply pump.

(2) Go back down the same path for about 30 metres and turn right onto an unmarked but fairly easy-to-see path. This balcony path offers a superb view of the Pre-Alps and leads to a forest track.

(3) There, take the path on the left, which leads directly to the ruins of Castrum Saint-Jean.
The ruins are worth visiting for the superb panorama, not to mention the orientation table and the shelter with its beautiful stalagmite.

(4) Turn around and head back along the forest road until you reach a crossroads.

(5) Take the DFCI track on the right (Cambon).
Not far away, take the first path on the left, clearly visible with a beautiful oak tree. Stay on this path, continuing straight ahead, until you reach a clearing with some ruins.

(6) Go around the ruins on the right to take the path that approaches the road and then moves away from it, heading south-west. Stay on this path, continuing straight ahead, until you reach a forest track.

(7) Turn left onto this track to reach the place known as "des quatre chênes" (four oak trees). There is a picnic area and a dry pond with a small bridge.

(8) Head south, cross the road and take the Sentier de la Capelette on the left.
Go down to the bottom of the valley, passing three paths on your right, until you reach a fork.

(9) Turn left and, after a few dozen metres, continue straight ahead.
Cross the stream, which is often dry. Turn right at the next fork.

(10) A few metres further on, turn right again onto a path that descends, indicated by a cairn and a green marker.
This fairly wild path, which is not shown on the IGN map, descends into the valley and runs alongside the stream.
Take the first path that climbs up to the left, easily recognisable by the wild vegetation, to reach the Guillandière spring.

(11) Continue along the path to the left of the fountain to reach a forest track. Turn right, pass a cistern and continue to a crossroads.

(12) Turn left (red arrow), leave two paths on your left and continue to an intersection.

(13) Turn right and take the track that climbs gently uphill. At the next intersection, take a small path on the left (not signposted) indicated by an orange arrow.
Climb for about 700 metres.

(14) Take the first path on the left. This descends along the Défens ridge, steeply at first, with beautiful views of the village of Rougiers.

Follow the path, which heads west-southwest before turning right at a 90° angle. Go through the valley, pass through a gate (on the right) and rejoin the road.
Pass the cemetery and turn left at a 90° angle.

(15) Follow Rue du Pays-Haut to the right, below the chapel. At a small square, turn right and take the second street on the left (Rue de la Ferrage).

(16) When the street bends left at a 90° angle, turn right into a passageway under the houses.
Turn left when you come out and, at the crossroads, turn right into Rue de la Rousse to return to the starting point (S/E).

Waypoints

  1. S/E : km 0 - alt. 354 m - Rougiers car park
  2. 1 : km 0.52 - alt. 384 m - Cross on the left. Straight ahead
  3. 2 : km 2.19 - alt. 527 m - Concrete cistern. Turn around.
  4. 3 : km 3.24 - alt. 594 m - Forest track intersection. Turn left.
  5. 4 : km 3.47 - alt. 598 m - Castrum Saint-Jean
  6. 5 : km 4.28 - alt. 551 m - Crossroads. Turn right.
  7. 6 : km 5.73 - alt. 590 m - Ruins. Go around on the right
  8. 7 : km 6.97 - alt. 644 m - Forest track intersection. Turn left.
  9. 8 : km 7.54 - alt. 670 m - The 4 Oaks
  10. 9 : km 9.84 - alt. 558 m - Fork in the road. Turn left, then straight ahead.
  11. 10 : km 10.36 - alt. 541 m - Cairn. Take the path on the right
  12. 11 : km 11.11 - alt. 513 m - Guillandière spring
  13. 12 : km 12.5 - alt. 523 m - Crossroads. Turn left.
  14. 13 : km 13.42 - alt. 538 m - Intersection. Right.
  15. 14 : km 14.52 - alt. 617 m - Fork in the road. Turn left
  16. 15 : km 16.38 - alt. 376 m - Small square. On the right.
  17. 16 : km 16.83 - alt. 360 m - Passage under houses
  18. S/E : km 17.02 - alt. 354 m - Rougiers car park

Worth a visit

The Guillandière spring fountain was once the water supply for Saint-Jean Castle and the old village. From Roman occupation to the Middle Ages, villagers would come down to the Guillandière with earthenware jars and pots to collect water.

Reviews and comments

4.5 / 5
Based on 37 reviews

Reliability of the description
4.2 / 5
Ease of following the route
4.4 / 5
Route interest
4.8 / 5
hexagone
hexagone

Overall rating : 4 / 5

Date of your route : Mar 28, 2026
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful, long and scenic green route offering stunning views of the valley and the Alps. Don’t miss the castrum and the orientation table, plus a magnificent and rare fountain. Lovely walks through completely wild forests where you won’t meet a soul. The paths are difficult to find, unmarked, and some are narrow and overgrown; without GPS, it’s impossible. There are no major difficulties, apart from a stony, damp path on the climb up to the plateau and the final steep descent, and the long distance – we measured it ourselves and it was over 18 kilometres.

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NITRITE
NITRITE

Overall rating : 3.7 / 5

Date of your route : Mar 28, 2026
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A lovely walk alternating between marked paths and wild trails. A very gentle climb. The GPS was very useful.

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Chantal&Olivier
Chantal&Olivier

Overall rating : 4.3 / 5

Date of your route : May 06, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

The car park was marked as a blue zone, so we parked in the village on Rue Jean Moulin.
Shortened hike: from point 1 to point 6, then we went straight back to point 10 (400 metres of elevation gain and 4½ hours).
at 12, follow the green arrow, not the red one
at 13, follow the orange arrow but there is an old GR country trail marker on the right on a stone just before the cairn.

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strzelecki  alain
strzelecki alain

Overall rating : 4.3 / 5

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

Very beautiful route

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fernandez
fernandez

Overall rating : 5 / 5

Date of your route : Oct 09, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Very beautiful hike

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Monsieur C
Monsieur C

Overall rating : 3.3 / 5

Date of your route : Sep 23, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

This hike, mainly through woods, is of little interest except for the ruins of Castrum Saint Jean. The GPS track is unreliable, so you will need to use the IGS map. The path to the fountain is almost impassable. I recommend this hike in summer, when you can stay in the shade almost the entire way. The village of Rougiers is charming.

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baldini daniel
baldini daniel

Overall rating : 5 / 5

Date of your route : Feb 07, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

It is easier to park in the stadium car park

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baldini daniel
baldini daniel

Overall rating : 5 / 5

Date of your route : Feb 07, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

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Randonneur du dimanche
Randonneur du dimanche

Overall rating : 4.3 / 5

Date of your route : Mar 05, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful hike that alternates pleasantly between woodland trails and wider tracks.
50 metres before point 2, take the path on the left towards the ruins of the Castrum. There is no need to go to point 2, as there is only a cistern and a pump to see.
The descent via the Défens ridge is quite steep and can be slippery (when it has rained, as was the case on this particular day). But it's nothing too serious.

Note about parking: the suggested parking spot is in a blue zone, so you may get a ticket if you leave your vehicle for several hours. Try parking near the school canteen (close to point 16) instead.

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madi83
madi83

Overall rating : 4 / 5

Date of your route : Jan 23, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful hike through oak trees with lovely balcony sections offering views all the way to the Alps. The castrum, which overlooks the current village, is worth a detour, as is the orientation table just below. The Guillandière fountain is a peaceful spot in the middle of the woods.
Despite its length, the route is easy going, with moderate slopes. The mix of tracks and paths (sometimes a little difficult to spot) is welcome.

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Bartozzi
Bartozzi

Overall rating : 4 / 5

Date of your route : Jan 08, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

There are discrepancies between the locations shown on the IGN map and the actual terrain at certain intersections. In particular, this applies to the access to the small path leading to the fountain. This comment also applies to other routes in general.

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pierre.bonifay
pierre.bonifay

Overall rating : 4.3 / 5

Date of your route : Feb 15, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

very pleasant route, beautiful views of the village and the ruins of the castrum

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phdelgrange
phdelgrange

Overall rating : 4.3 / 5

Date of your route : May 24, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful walk with lots of trails in the woods, except between points 7 and 1, where the DFCI trails are exposed to the sun.
Allowing plenty of time, allow 5½ hours for the entire walk.
We enjoyed the very gradual climb, which makes you forget the 500m elevation gain.

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catram
catram

Overall rating : 5 / 5

Date of your route : May 16, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

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Delphine DE LUCA
Delphine DE LUCA

Overall rating : 5 / 5

Date of your route : Mar 01, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

A very beautiful hike with a special atmosphere thanks to the charms of Rougiers – be sure to check out the Renaissance façade as you climb up to the right! – and the moss-covered trails in the woods at this time of year.
We got lost a few times but always found our way back with the help of the trail markers.

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