La Roche Percée des Arlettes starting from Cornas

This hike is a variation of Cornas la Borne. The first part offers a very pretty view above the Cornas vineyards, returning via familiar paths between (4) and (10) on the other route. The second variation is the descent to the village of Cornas.

Details

14858449
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  • Walking
    Activity: Walking
  • ↔
    Distance: 15.12 km
  • ◔
    Average duration: 6h 00 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 591 m
  • ↘
    Descent: - 593 m

  • ▲
    Highest point: 538 m
  • ▼
    Lowest point: 130 m

Photos

Description of the walk

Park in the Cornas cemetery car park.

(S/E) Head west for 100 metres, then turn right towards the north. Continue until you reach the last houses.

(1) Walk past the last house, then follow the Chaillot stream for about 100 metres, then take the rocky steps on the right. Walk to the vineyard and follow it to the left, then to the right until you reach Chemin du Coulet.
Take it on the left, climb gently through the vineyard and, after a hairpin bend, it becomes steeper and steeper. Continue to the ruins of Le Coulet.

(2) Take the path on the right, towards two caravans, and walk past them. The path climbs gently; continue until you reach the first hairpin bend.
In the middle of the hairpin bend, take the first small path down into the woods on the right and follow it for about 150 to 200 metres. When you reach a more open area, turn left to arrive under the rock arch.
There isa splendid view of Crussol Mountain and a small part of the Cornas vineyard. Cross the arch, then take the narrow passage on the left. Continue along the ascending path to reach the plateau above the arch. Wind your way through the woods, follow a fence to reach a small tarmac road.

(3) Take it to the left, first downhill, then up again to the left, in a fairly sharp bend. There is a larger area here that can be used as a car park for two or three vehicles. Leave the road and turn right onto a downhill path that enters the woods. Be careful! The descent is very steep. Cross the Largentière stream and climb back up until you find a wider path connecting Les Royes to La Borne.

(4) Continue left uphill and, after a few bends in the woods, you will reach an open space. Continue on to reach the Grange farm.

(5) Follow the small road uphill to the left towards the houses of La Borne, then continue downhill to the Michelas crossroads.

(6) Take the steep road on the left and follow it for about 800 metres. Pass a large green henhouse and, at the end of the tarmac road, take the path opposite which leads to the hamlet of Bressieux. Keep left and cross the hamlet.

(7) Just before a steep climb, take a small road heading south between the houses, which quickly becomes a path winding between woods and meadows. Stay on the main path.

(8) Follow the path to a large gate, turn right, walk along the fence, then turn left. At the first crossroads, just above the hamlet of Chante-Perdrix, join theGR® 42, marked in white and red. Follow it through the hamlet of Les Plaines. 200 to 250 m after the hamlet, take the path on the left (GR® 42). Join a small road that passes in front of the Barreau house. The road climbs.

(9) __Take great care on the climb, take the small path on the left and leave theGR® 42. This descends to the hamlet of Précharnier. Cross the hamlet and, just before the last house, take the path downhill to the left, heading north-east, and join a road.

(10) Follow it to the left for about 200 metres, then leave it and take the path going uphill opposite. Leave the first path on the left and continue straight ahead. At the next crossroads, turn right, pass in front of the remains of a wooden barrier and you will reach the Chapelle Saint-Pierre.

(11) Cross the road and take the path opposite. Quickly turn left, being careful not to go through the gate, and descend through the vineyard to the access road to the hamlet of Les Aires. Turn left and, after about 100 metres, take the path on the right at the bend. Stay on this path and continue to the crossroads leading to Chanas.

(12) Take this path on the right, head towards Chanas and, before the house, you will find a small wooden hiking sign with an arrow pointing the way. Turn left onto the winding path downhill, first along the top of a vineyard, then into the woods. Follow several hairpin bends, then arrive at the vineyards on the Tezier hillside. Continue downhill along the stream to arrive at Rue du Ruisseau, at the entrance to Cornas.
Follow it towards the village centre and arrive at the crossroads by the town hall.

(13) Take the stairs on the left, cross the stream, continue along Chemin des Églantiers, then turn right to return to the Cornas cemetery car park (S/E).

Waypoints

  1. S/E : km 0 - alt. 132 m - Cemetery car park
  2. 1 : km 0.35 - alt. 138 m - End of Chemin des Églantiers
  3. 2 : km 1.56 - alt. 248 m - Le Coulet
  4. 3 : km 2.27 - alt. 275 m - Road junction
  5. 4 : km 3.86 - alt. 205 m - Chemin des Royes in La Borne.
  6. 5 : km 5.13 - alt. 361 m - Ferme de la Grange
  7. 6 : km 5.71 - alt. 404 m - Michelas crossroads. Follow the tarmac road to the left.
  8. 7 : km 7.5 - alt. 538 m - Bressieux hamlet. Path on the left.
  9. 8 : km 8.31 - alt. 519 m - Turn left.
  10. 9 : km 10.06 - alt. 495 m - Be careful on the path on the left, leaving the GR.
  11. 10 : km 11.22 - alt. 413 m - Junction with road.
  12. 11 : km 12.06 - alt. 390 m - Saint Pierre Chapel
  13. 12 : km 13.15 - alt. 261 m - Chanas crossroads
  14. 13 : km 14.84 - alt. 132 m - Stairs
  15. S/E : km 15.12 - alt. 132 m - Cemetery car park

Notes

Please do not attempt this route in wet weather as there are many very slippery sections.

Worth a visit

 Always be cautious and plan ahead when you're outdoors. Visorando and the author of this route cannot be held responsible for any accidents occurring on this route.

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

Reviews and comments

4.3 / 5
Based on 15 reviews

Reliability of the description
4 / 5
Ease of following the route
4.2 / 5
Route interest
4.6 / 5
de BAST Alain
de BAST Alain

Overall rating : 5 / 5

Date of your route : Nov 07, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

An extraordinary hike for all levels.
The pierced rock is definitely worth seeing.
The waterfalls offer moments of delight for the eyes.
No barriers or barbed wire encountered along the route.
We didn't meet anyone else on a Friday.
This is simply a hike not to be missed... Enjoyment guaranteed.

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karkad
karkad

Overall rating : 4 / 5

Date of your route : Apr 25, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

We didn't look too hard for Percée rock at the beginning because the ground was a bit muddy. The hike is very pretty and varied, with vineyards obviously very present. During the first part, there was a lot of noise from cars, like a Formula 1 route, but fortunately the flowering broom helped us forget about the noise pollution. Then it was quieter, with a pleasant taste of summer. Thank you for this lovely circular!

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Jalu
Jalu

Overall rating : 4.3 / 5

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

Very beautiful hike done on 18/02/24. No markings. A little difficult just before reaching the arch despite the Visorando route, but having already done it, I found it again, and it was super beautiful.

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Emmanuel26
Emmanuel26
• Edited:

Overall rating : 4 / 5

Date of your route : Nov 27, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Hike done in beautiful autumn weather during the week, with a lovely variety of landscapes and paths, and a beautiful view of Valence, Crussol and the Vercors. We struggled to find the pierced rock, but finally ended up above it. The route on the app isn't accurate; as soon as you reach the rocks, you have to walk as close to them as possible. But there's no risk of getting lost. We ignored a "private property" sign located near a large farm. I'd happily do this hike again in spring and summer. Thanks to the designer!
PS: we encountered several unleashed dogs along the way. Personally, this doesn't scare me, but it's something to consider if you have a phobia of dogs or if you're hiking with your pet.

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BALADEAUBERT
BALADEAUBERT

Overall rating : 3.3 / 5

Date of your route : Mar 17, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

Very pretty circular, with numerous viewpoints offering beautiful vistas.
Avoid this circular in strong winds.
At point "11", the description invites us to walk through the vineyards... In our case, the winegrowers working in the vineyards kindly advised us to avoid crossing the vineyards and instead go back up the road and down to hill 327 (marked to the right of the "poplars") to rejoin the author's route at this point and reach point "12".
At point "12", we turned left, as a private sign advised us not to follow the route indicated by the author of the day's hike.
The hike therefore ends by following a country route, marked in yellow.

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leodu007
leodu007

Overall rating : 3 / 5

Date of your route : Mar 13, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★☆☆☆ Disappointing
Route interest : ★★★★☆ Good
Very busy route : No

A beautiful hike with stunning views and lovely trails!
However, there is a lot of walking once you reach the summit, but above all, the route mapped out by the author is more than approximate...

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mandoline
mandoline

Overall rating : 5 / 5

Date of your route : Jan 31, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very beautiful hike, but not to be attempted after rain
as there are some steep slopes in certain sections.

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bruno92160
bruno92160

Overall rating : 4.3 / 5

Date of your route : Jan 03, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A beautiful tour, very varied, through the valleys and ravines of Cornas, the vineyards and hills below St Romain de Lerps. Lots of spectacular views over the whole of the Valentinois region, from the Rhône and Isère rivers to the ruins of Crussol, via the peaks of the Vercors and, of course, the 3 Becs. The weather was mostly overcast on 3 January, but this did not detract from the views along this route.

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jcmichel
jcmichel

Overall rating : 4.7 / 5

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

We did this route in good weather. It is a magnificent route with a wide variety of landscapes. Most of the time, it is not marked, so using the "visorando" app on my phone proved very useful. We found the distance and total elevation gain to be slightly higher than what is stated on the information sheet. In short, a superb hike. Thank you to the "visorandonneur" who posted it online!

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Marc Moissat
Marc Moissat

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Denis26
Denis26 ★

The route and description of this itinerary have been modified to avoid the Largentière Stream.

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paulo07
paulo07

Overall rating : 4 / 5

Date of your route : Feb 20, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Please note! This hike should no longer be offered in this form.
At the Largentière stream, the trail ends at a fence and barbed wire with a "private property" sign.
We had to turn back.

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philibert Bruno
philibert Bruno

Overall rating : 5 / 5

Date of your route : Feb 08, 2022
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

I don't think you should include this hike in your catalogue. We just did it and found ourselves facing a fence topped with barbed wire between points 6 and 7 when crossing the Largentière River. We had to scramble through woods overgrown with brambles and dead branches. Fortunately, there were only two of us and we are experienced hikers. This added nearly 2 km to our hike. My husband, who is less experienced than us, would not have been able to get through and we would have had to turn back.
It's a real shame because this hike is very well described, magnificent, with a splendid view of the Vercors. The weather was very clear.
Thank you to the person who suggested it, but it can no longer be done unless a path is cleared in the woods.

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Ouenza
Ouenza
• Edited:

Overall rating : 4 / 5

Date of your route : Feb 06, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

PLEASE NOTE: the Argentière stream crossing (between points 6 and 7) is no longer accessible as it is private property and has been fenced off. We met the owners along the route of this hike. They explained that the crossing is blocked (fence and wire mesh since January 2022) because it is private property, they have had damage to their land and want to be left in peace. The route needs to be changed, which is complicated.

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alnobal07
alnobal07

Thanks for the information. I stopped by on 11/01 and there was no sign of a fence.

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