Source of the Ain

A splendid hike between the plateau and the steep-sided valley of the Ain. This circuit offers an opportunity to discover the upper Ain valley and its unique geology, with its Vaucluse spring, waterfalls (Le Moulinet, Saut des Maillys, Moulin-du-Saut) and ruined mills, evidence of how humans once harnessed the power of water. In fact, an EDF hydroelectric plant has replaced the old Moulin-du-Saut.

Technical sheet

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  • Walking
    Activity: Walking
  • ↔
    Distance: 9.97 km
  • ◔
    Average duration: 3h 35 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Vertical gain: + 250 m
  • ↘
    Vertical drop: - 256 m

  • ▲
    Highest point: 789 m
  • ▼
    Lowest point: 628 m

Photos

Description of the walk

To return to the starting point, follow the D17, then the D283, and at the crossroads, head north and park in the mandatory car park (altitude 709).

(S/E) Leave the car park and go up to the left at the end of the road, then take the track. Follow the yellow and red markings and continue to the right for a few metres until you reach a fork.

(1) Turn left onto the path leading to the Saut des Maillys.

(2) Admire the magnificent waterfall, then retrace your steps to the previous fork.

(1) Turn left and follow the yellow and red markings on the road heading south-east. At the end of the road, after a small car park, the path splits into two branches.

(3) Go left (A/R) towards the bank of the Ain, taking the stone path that descends and continue to the source of the Ain.

(4) Go back up the path to return to the previous fork.

(3) Turn completely left and take the path that climbs into the woods, offering a bird's-eye view of the source of the Ain.

(5) Leave the forest path and follow a trail on the left that loops around and then runs along the side of the Ain, following the yellow and red markings. Pass the paths on the left and at an elevation of 708 metres, keep to the right until you reach a fork.

(6) Leave the path for a short detour to the Moulin-du-Saut, following the yellow and red markings.

(7) There is a viewpoint with information panels about the use of water power and the old Moulin du Saut (or Sault) mill in ruins, followed by a small dam upstream from the first waterfall on the route.
Turn around and return to the previous fork.

(6) Turn left onto the yellow and red marked trail and follow it for a few hundred metres.

(8) At the car park, leave the yellow and red markings and turn left onto a forest track. It climbs towards Doye, and the markings are now yellow. Turn left onto a road at the fountain and cross the village until you reach the fork at the exit.

(9) Take the road on the left that descends and gives way to a gravel path. Reach the bank of a stream.

(10) Cross the Ruisseau de la Combe Sandon and continue with the stream and the Cascade du Moulinet on your left, following the yellow and red markings. At the crossroads, continue left and arrive at the bridge over the Ain.

(11) Cross the bridge, turn left and follow the banks of the Ain until you reach a fork.

(12) Leave theGRP®, turn right, heading south-east, and return to the car park where you started (S/E).

Waypoints

  1. S/E : km 0 - alt. 707 m - Parking required. Elevation 709
  2. 1 : km 0.5 - alt. 689 m - Fork in the path at the waterfall
  3. 2 : km 0.63 - alt. 649 m - Saut des Mailly
  4. 3 : km 1.85 - alt. 684 m - Fork. Return to the source of the Ain.
  5. 4 : km 2.1 - alt. 683 m - Source of the - Ain (rivière)
  6. 5 : km 2.6 - alt. 708 m - Viewpoint - Ain (rivière)
  7. 6 : km 4.18 - alt. 720 m - Fork in the path at the mill
  8. 7 : km 4.28 - alt. 688 m - Scenic viewpoint. Moulin du Saut
  9. 8 : km 4.77 - alt. 718 m - Fork
  10. 9 : km 6.07 - alt. 788 m - Road on the left
  11. 10 : km 8.06 - alt. 656 m - Bridge over the stream
  12. 11 : km 8.56 - alt. 628 m - Bridge over the - Ain (rivière)
  13. 12 : km 9.74 - alt. 686 m - Fork in the road. Return to the car park.
  14. S/E : km 9.97 - alt. 707 m - Parking required. Elevation 709

Practical information

The trail is slippery in places in wet weather.

Reviews and comments

4.6 / 5
Based on 109 reviews

Reliability of the description
4.5 / 5
Clarity of route map
4.5 / 5
Route interest
4.7 / 5
Valox77
Valox77

Overall rating : 4.7 / 5

Date of walk : Sep 02, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : No

A very beautiful and interesting hike. There are a few information boards. We parked in the car park above the village of Conte. There is also a short orange-marked trail that we included to see the footbridges.
We had a picnic by the mill.
The landscapes are varied and the elevation gain is acceptable.

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encore1matin
encore1matin

Overall rating : 3.7 / 5

Date of walk : Jun 08, 2025
Reliability of the description : ★★★☆☆ Average
Clarity of route map : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Busy trail : Yes

Parking required, Cote 709: my car's GPS doesn't know where that is.
So I parked near the town hall in Conte.
Afterwards, my small group and I found this car park.
Starting point for several hikes...
It was Whit Monday, so there were lots of people on the trails (after so many days of rain).
This hike is magnificent, I highly recommend it.
We covered 12 km with a 300 m elevation gain.
It was a real treat.

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Isloise
Isloise

Overall rating : 5 / 5

Date of walk : May 26, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

Superb hike! It had rained the week before, so the spring and waterfalls were full of water - it was truly magnificent!
Variety of landscapes, forest, river and mountain pasture.
Small difficulties with my 2 dogs:
- the metal footbridges, which can be difficult for some dogs
- crossing the pasture with the cows: we waited 10 minutes for the cows to calm down and go further away, and then we hurried across.
I started the walk from the car park at the Saut du Moulin and set off in the opposite direction, no problem finding my way around.
I completed this beautiful walk by touring the pertes de l'Ain, 15 minutes away.

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abv
abv

The starting point is the car park.
When you click on "go to the start" it takes you to the starting point. There's no risk of making a mistake.
There are also yellow signs pointing the way all along the route.

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encore1matin
encore1matin

What is the exact starting point?
The directions given don't mean anything to me.
Not giving me latitude/longitude is Chinese to me.
Thank you very much.

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abv
abv

Overall rating : 5 / 5

Date of walk : May 29, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

So what can I say? If I could have given it 10 stars, I would have. A hike without any difficulty, accessible to all, with a very varied itinerary! Streams, waterfalls, all different but equally beautiful. I would have given this walk 10 stars because, although it wasn't in the mountains, it was magnificent. There was quite a lot of water, so it was very easy on the eyes. The route was well shaded on the whole, which was a plus as it was hot. But there are ways to cool off along the way... that's it. Go with your eyes closed 😍

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croc-trotteuse
croc-trotteuse

it's the waterfall at the bottom of the combe Sandon that we didn't see !!!

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croc-trotteuse
croc-trotteuse

Overall rating : 4.7 / 5

Date of walk : Apr 18, 2025
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

Magnificent walk, waterfalls, streams, it's all there! We were able to take some superb photos. We really enjoyed the AIn footbridge circuit, a short path running alongside the stream. However, we didn't cross any streams between points 10 and 11 and I'm afraid we missed the waterfall. We saw one that apparently wasn't the Moulinet waterfall, we were told.... apparently you had to take a little path, cross a stream and see the waterfall at the bottom, but never found it..... the GPS giving us a bit of trouble, the point froze and we had to look at the written detail.... no big deal, that'll be for another time! otherwise a hike to be highly recommended!!!

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Meyer Charly
Meyer Charly

Overall rating : 5 / 5

Date of walk : Feb 27, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★★ Very good
Busy trail : No

Despite the overcast weather, the walk was a bright one

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Flomartin6
Flomartin6
• Last modified:

Overall rating : 4.7 / 5

Date of walk : Feb 14, 2025
Reliability of the description : ★★★★★ Very good
Clarity of route map : ★★★★★ Very good
Route interest : ★★★★☆ Good
Busy trail : No

A very nice walk with no major difficulties, which allows you to see several magnificent waterfalls. At this time of year, however, beware of 2-3 icy stretches, but this remains marginal.

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NOLLICEC
NOLLICEC

Overall rating : 4 / 5

Date of walk : Sep 11, 2024
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Busy trail : No

The weather conditions (it had been raining for several days) made this hike particularly interesting, as there was very little traffic and the source and the Ain had a very large flow. As far as the route is concerned, between point 2 and point 3, be careful not to turn left towards "source de l'Ain" on the path leading down to the river, but to keep going straight ahead.

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jpvls
jpvls

Overall rating : 4 / 5

Date of walk : Aug 22, 2024
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★☆ Good
Busy trail : Yes

At this time of year, the spring was a gigantic cave with no water...
Otherwise, the circuit as a whole is fairly varied, with many shady sections.
in the shade.

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Marieme.sgnb
Marieme.sgnb
• Last modified:

Overall rating : 3.3 / 5

Date of walk : Aug 05, 2024
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★☆☆☆ Disappointing
Busy trail : Yes

The first half of the route is very busy (we started walking at around 11am), then once you enter the village (from point 8) it's a bit quieter. On the other hand, the whole of the first part before point 8 is largely made up of wide tarmac or stony paths, rather flat, which is personally not what I like when I go hiking. That's why I found the2nd part of the hike so much more pleasant, with a lovely little pool on the road and the beautiful Moulinet waterfall.

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yannherbert
yannherbert

Overall rating : 4.3 / 5

Date of walk : Aug 04, 2024
Reliability of the description : ★★★★☆ Good
Clarity of route map : ★★★★☆ Good
Route interest : ★★★★★ Very good
Busy trail : Yes

This is an excellent trail, mostly in woodland, which will remain one of my favourites. Walking shoes essential, but not very difficult.
Very beautiful waterfalls, a feast for the eyes especially after a rainy period that swelled the river.
Superb walk

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lemarcheur65
lemarcheur65 ★

Hello brageole
Thank you for your comment.
From the car park, after the 709 mark, it would be a good idea to go directly north-west along the track and turn right to reach the (1).
I'll send a message to the author.

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