Tour of the Chamoise Plateau

The aim of this suggested route, starting from Nantua, is to take a journey across the Chamoise Plateau. It is an alternative to another route featured on the website: the Roche d’Au-Delà, the link for which is provided below.
Whilst the climb up to the Monts d’Ain is a bit of a challenge at times, the rest of the walk is generally gentler.

Details

n°1021066
Creation:
Last update:
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  • Walking
    Activity: Walking
  • ↔
    Distance: 8.21 mi
  • ◔
    Average duration: 5h 40 
  • ▲
    Difficulty: Difficult

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 2,201 ft
  • ↘
    Descent: - 2,185 ft

  • ▲
    Highest point: 3,698 ft
  • ▼
    Lowest point: 1,565 ft

Photos

Description of the walk

Park on Avenue du Camping in Nantua, near a sports centre (car park available) just past the level crossing.

(S/E) Continue along the street to its end: take the path on the left (towards Roche d’Au-Dela) then carry on straight ahead along a track suitable for vehicles, which climbs gently for about 500 metres.
You’ll reach a junction where four paths meet.

(1) Take the forest track straight ahead, which slopes upwards (at the signpost marked ‘Circular Trail Départ’), and follow it for about 800 metres (yellow markings).

(2) At a hairpin bend in the track, leave it by heading straight on (at the start of a trail = La Côte Force): follow the steeply ascending path until you rejoin the forest track a little further up. Continue along the left-hand side of the track.

(3) Quite soon, leave the forest track again, heading towards the transmitter at a hairpin bend (the second one you come to). Follow the path as it climbs, then rejoin the forest track a little further up at another hairpin bend (the third one you come to), where you should take another ascending path.
You’ll cross the forest track a little further up at another hairpin bend (the fourth) and continue along another path.
A little further up, you’ll rejoin the forest track: continue along it to the left.

(4) You’ll reach an unnamed pass: from here, you can take a short detour to the left (a round trip) to reach the Vierge des Monts d’Ain (15 mins) and enjoy a beautiful view.
Carry on to the right towards the Monts d’Ain (yellow markings).

(5) Once you reach the plateau, head right towards the Monts d’Ain to reach the summit, which is very close by.

(6) The summit of the Monts d’Ain is the highest point of the route (1,127 m): from here, enjoy the beautiful views (over Lake Nantua, and even Mont Blanc if the sky is clear).
Retrace your steps back to the previous crossroads.

(5) Do not follow the sign for Saint-Martin-du-Fresne on the right; instead, carry straight on until you reach a lovely meadow.
A little further on, the yellow-marked trail heads towards the forest. Follow this path, keeping a close eye on the yellow markings. At one point, you’ll need to pay attention to turn left as indicated by the markings. You’ll come to a fork in the path.

(7) Turn left towards the viewpoint (2 mins’ walk). Retrace your steps and, at the fork, continue to the left.
The path continues to descend at a steady gradient until it reaches a farm in a place called La Lachère

(8) Take the small tarmac road (leaving the yellow-marked section shortly afterwards).
At a crossroads, go straight on along the Chemin du Champs Carré (the road on the right is called Impasse de la Vierge). You’ll see the houses of the hamlet known as Les Pélissiers opposite. Walk through this hamlet, cross the Impasse de la Ferrière and reach the crossroads with the Chemin de l’Ancienne École.

(9) Turn right onto Chemin de la Mine (a slight climb): the road passes through the middle of the buildings in the hamlet of La Mine, then descends slightly afterwards. Keep left, then turn right at the junction with Chemin de la Greye. Continue to the junction in the hamlet of La Craie.

(10) Leave the road and take a well-maintained track on the right which climbs slightly. Ignore any paths you come across on the right. The path heads north and leads to the Grange de l’Ours.

(11) Carry straight on to reach, a little further down, the beautiful viewpoint known as Les Doigts du Diable.
Be careful here: the access point is only partially visible as the signpost has disappeared. The path then descends gently to rejoin the outbound route further down.

(1) Turn left to return to the starting point via the outward route (S/E)..

Waypoints

  1. S/E : mi 0 - alt. 1,565 ft - Nantua – Avenue du Camping
  2. 1 : mi 0.38 - alt. 1,670 ft - Junction – Chemin de Chamoise
  3. 2 : mi 0.88 - alt. 2,008 ft - Junction – Hairpin bend 1
  4. 3 : mi 1.11 - alt. 2,300 ft - Lacet 2 – Transmitter
  5. 4 : mi 1.87 - alt. 3,248 ft - Pass
  6. 5 : mi 2.65 - alt. 3,589 ft - Junction
  7. 6 : mi 2.85 - alt. 3,698 ft - Monts d'Ain
  8. 7 : mi 3.72 - alt. 3,045 ft - Viewpoint
  9. 8 : mi 4.58 - alt. 2,431 ft - La Lachère
  10. 9 : mi 5.42 - alt. 2,369 ft - Chemin de la Mine
  11. 10 : mi 5.98 - alt. 2,415 ft - La Craie
  12. 11 : mi 6.74 - alt. 2,405 ft - Grange de l’Ours
  13. 12 : mi 7.08 - alt. 2,228 ft - The Devil’s Fingers
  14. S/E : mi 8.21 - alt. 1,565 ft - Nantua – Avenue du Camping

Notes

Good walking boots are recommended. In wet weather, walking poles are also recommended.

View the starting point.

Nature hates your rubbish. Take it home with you!

The route is generally good:
From (S/E to 2) yellow markings that are not very visible (and few signposts),
From (2 to 4) no markings, but a clearly visible path,
From (4 to 8): yellow markings (clearly visible after the (5)),
From (8 to 9): no markings apart from at the start; finding your way shouldn’t be a problem.
From (9 to S/E): no markings until the junction with the Chemin de la Greye (no problems with finding your way), then a route marked with yellow markings until the return.

Alternatives:

(2) As an alternative route, you can follow the longer forest track, which has gentler gradients, to reach the (4) at a higher altitude.

(4) At the unnamed pass, you can visit the Vierge des Monts d’Ain as a round trip (estimated time for the walk there and back = 15 mins): a beautiful viewpoint.

(8) At La Lachère, I suggest you complete almost the entire circuit of the Chamoise plateau, which offers a variety of landscapes (mostly through woodland).

Worth a visit

Reviews and comments

4.2 / 5
Based on 5 reviews

Reliability of the description
4 / 5
Ease of following the route
4.4 / 5
Route interest
4.2 / 5
Mu&Jp-du-Jura
Mu&Jp-du-Jura
• Edited:

Overall rating : 3.7 / 5

Date of your route : Aug 26, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

A beautiful, very steep climb. Much of the route is covered by forest, which is nice as it provides shade, but apart from a few viewpoints (very spectacular, I agree), there isn't much to see. Crossing the plateau on a tarmac road is monotonous.
The route took 4½ hours, including a snack break.

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kaolak1
kaolak1

Overall rating : 4.3 / 5

Date of your route : Aug 16, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

The climb takes place almost entirely on the trail and is really tough, but I absolutely loved the challenge (unfortunately, these paths aren’t used much by hikers, so be careful – wearing shorts, I got quite a few scratches on my legs)

Then the section from 5 to 8 was awful for me because there was an infestation of caterpillars hanging from their threads, and as they’re hard to spot, I kept getting them on me and spent my time having to brush them off the path.

I’m not a big fan of the sections through the hamlets, even if they do make for a good circular route.

Otherwise, the hike was generally very interesting; it was my first in the Ain and I had some lovely views of the region! I’d still recommend it, though – the circular route is well put together and it’s quite a workout.
I only came across one other person that day (who wasn’t following the same route as me), so that’s a big plus!

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mcordon
mcordon

Overall rating : 4.7 / 5

Date of your route : Apr 20, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

A lovely walk offering beautiful views, best enjoyed in fine weather

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monsieurpointu
monsieurpointu

Overall rating : 5 / 5

Date of your route : Jul 27, 2021
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A rather challenging climb with trails running right up the slope! But what a thrill... though best avoided with children or inexperienced riders. Beautiful views and a very pleasant descent, at least for the first part. There’s a stretch on tarmac, but on quiet roads. Thanks to the person who mapped this route.

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PARRASSIN
PARRASSIN

Overall rating : 3.7 / 5

Date of your route : Mar 16, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good

Two magnificent views from the summit, overlooking the Route des Titans and the Doigts du Diable above Lake Nantua

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