Circular route in the Justin Forest from Chapiat

Hike in the Justin National Forest, in a typical Diois atmosphere, with narrow paths in little-used valleys, a mainly forest route with views of the southern Vercors mountains.

Details

515232
Creation:
Last update:
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  • Walking
    Activity: Walking
  • ↔
    Distance: 10.03 km
  • ◔
    Average duration: 4h 35 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 595 m
  • ↘
    Descent: - 596 m

  • ▲
    Highest point: 968 m
  • ▼
    Lowest point: 439 m

Description of the walk

(S/E) From the car park, go up the main track at the bottom of the valley. Ignore the path on the right, which will be the return route. Shortly after passing the barrier, look out for a path on the left.

(1) Ford the stream and continue along this path, then climb up a good path above the track. At the first Y-junction, take the path on the right. Follow this path until you come to a path coming from the left (signpost).

(2) Take this path on the left (shorter alternative: see Practical Information).
This path continues along the Rec Oiseau valley, crossing a sometimes steep slope. Two narrow and sloping sections of the path require caution. Pass four small rocky hairpin bends (not shown on the IGN map). The path continues to climb steadily through the forest until it joins a forest track. You will reach the Justin Lodge (closed).

(3) From the lodge, head north on the track until you find a dirt track on the right.

(4) Take this path downhill heading north-west then west until you reach the signpost.

(5) Ignore the path that branches off to the right towards Belle Justine (which may allow for a quicker return) and stay on the path heading west. Ford a stream and continue on almost flat ground until you reach a crossroads.

(6) Leave the path towards Col de Barsac on the left and continue towards Pas de la Perdrix (note that Pas de la Perdrix is not in the right place on the Géoportail).

(7) At Pas de la Perdrix, leave the plateau and take a narrow path above the Ravin des Houlettes. Follow this path, which starts off as a balcony, cross a track and continue along the switchbacks.

(8) Return to the track, which forms large circular loops, and cross it twice. At the last junction, follow it to the left to reach the finish (S/E).

Waypoints

  1. S/E : km 0 - alt. 440 m - Chapiat hikers' car park
  2. 1 : km 0.5 - alt. 469 m - Crossroads between track and dirt road
  3. 2 : km 1.91 - alt. 628 m - Crossroads of paths
  4. 3 : km 4.63 - alt. 957 m - Justin Forest Lodge
  5. 4 : km 5.16 - alt. 959 m - Crossroads between track and dirt road
  6. 5 : km 5.93 - alt. 846 m - Crossroads between path and trail
  7. 6 : km 6.18 - alt. 836 m - To the right towards the Pas de la Perdrix
  8. 7 : km 8.07 - alt. 661 m - Pas de la Perdrix
  9. 8 : km 8.89 - alt. 561 m - Junction with the track
  10. S/E : km 10.03 - alt. 439 m - Chapiat hikers' car park

Notes

Access to the start:
Before the bridge over the Drôme (coming from Valence), turn right towards Chapiat - waste collection centre, pass the waste collection centre, and take the second dirt track on the right after the level crossing (DFCI sign). Follow this track for about 2 km until you reach the Chapiat "hikers" car park (marked "parking") (near the access road to the lodge).
Park in the car park, not on the track, and do not block access to the farm tracks.
Shorter alternative via Belle Justine and the (5, continuing straight ahead)

Please note: at the start of the dirt track leading to the starting point of the hike (Chapiat), there is a B0 sign saying "except for authorised vehicles". Traffic seems to be tolerated up to the car park (there is a second B0 sign just after the car park).
However, this is at your own risk. Otherwise, walk up the 2km track.

Rating: The elevation gain and distance are reasonable, and the trails are never very steep, but there are two sections where caution is advised, a little upstream from the (2) before the rocky switchbacks: the trail is flat but narrow and slightly sloping due to erosion, and overlooks the ravine, so be careful with children or if you are not comfortable with this type of passage.

(3) Next to the lodge, a fountain (uncontrolled), benches and shaded area are ideal for a picnic.

Reviews and comments

4.7 / 5
Based on 7 reviews

Reliability of the description
4.8 / 5
Ease of following the route
4.7 / 5
Route interest
4.4 / 5
Thierryb26
Thierryb26

Thank you

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User 27390299

Hello, yes, you can park just before the lodge; there are a few potholes but it’s no problem (in a people carrier). However, there’s a ‘no entry except for residents’ sign, so please don’t use this route when it’s busy.

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Thierryb26
Thierryb26

Hello and thank you for your feedback,

Out of curiosity, did you drive all the way to the start along the track? If so, what condition is it in? It’s been a while since I’ve been in the area...

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User 27390299

Overall rating : 4.7 / 5

Date of your route : May 01, 2026
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A lovely walk, with a gentle climb along a path through the woods on the hillside. We even found some lily of the valley to pick. The descent is just as gentle; a very pleasant walk.

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Thierryb26
Thierryb26

Thank you for your comment. Many trails in the area are also marked for mountain biking, which is how I spotted quite a few of them. Normally, this isn't a problem 😉

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aisenmann
aisenmann

Overall rating : 5 / 5

Date of your route : Oct 20, 2025
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful hike, especially during this colourful season. Thank you to the author.
One small downside: the return trail is also a mountain bike trail.

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BARNAVON
BARNAVON

Overall rating : 4.3 / 5

Date of your route : Sep 11, 2019
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average

Hello,

This route is the counterpart to the one further east that passes by the Croix de Justin. The route via Chapiat is less interesting, especially in the Chapiat valley. The landscapes are more varied and more pleasant on the eastern side.
In fact, it is just a long climb and a long descent. In terms of elevation, it seemed less significant to us, at 535 metres.
I think a short detour via the Col de Barsac and the Barsac side would make the route more interesting.

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andreevalence
andreevalence

Overall rating : 4.7 / 5

Date of your route : Apr 06, 2018
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A lovely day on a pleasant trail
No difficulty
Beautiful scenery, such as the snow-covered ridge of the Gd Veymont

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crisix-2008
crisix-2008

Overall rating : 4.3 / 5

Date of your route : Nov 13, 2017
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good

Just a small doubt at the start: from the car park, you have to turn right and ignore the one on the left with the barrier.
The rest of the description is spot on.
Once you reach the forest house, you can make a round trip to the Croix de Justin in just under an hour. The view is really worth it and vultures sometimes come to hover above the antennas at the summit.
Thank you.

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daniel.bernardmc
daniel.bernardmc

Overall rating : 5 / 5

Date of your route : Apr 29, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

This hike takes place mainly on shaded trails and is very pleasant. It can easily be done in summer, with the added incentive of a refreshing swim in the Drôme river on the way back.
We encourage you to leave your car at the level crossing, as the trail is easy to walk along. Allow an extra half hour and remember that it's good for the planet!
Thank you.

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