Loop around the Armaille and Arborias lakes via Corne-Bœuf

An all-season looping route in the Bugey region, starting from Colomieu. Taking in the Furans and Gland basins, it is a pleasant walk with its marshes and lakes, and an original one with its passage through the Roche Percée de Corne-Bœuf. Beware of water levels, which can vary considerably.

Diversions to (13). Moderator on 06 June 2025. Pending action by the author.

Details

4717238
Creation:
Last update:
  • Walking
    Activity: Walking
  • ↔
    Distance: 7.40 mi
  • ◔
    Average duration: 3h 55 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 571 ft
  • ↘
    Descent: - 568 ft

  • ▲
    Highest point: 1,306 ft
  • ▼
    Lowest point: 1,056 ft

Photos

Description of the walk

Departure from Colomieu (Ain) reached from Belley via Arbignieu or from Brégnier-Cordon via Prémezel and Saint-Bois. Park near the boule courts along the Agnin.

(S/E) Go north, turn right over the bridge over the Agnin and continue straight east along the Route du Moulin until you come to a calvary.

(1) Turn left onto Chemin de la Coule (according to the map), which rises moderately to the north-east. Follow the paths to the right and then to the left.

(2) At Bagne, turn left heading north. Continue straight ahead, passing two small lakes on the right. After a landing, a limestone ridge appears on the left of the path.

(3) Optional return ascent. At the point where this ridge meets the path, before some slabs, a path climbs up to the left to reach the top of this ridge, which you follow to the highest point of Recania (396 m), the only viewpoint in the area opening up to the various summits of the Bugey.

(4) Retrace your steps to the fork.

(3) Go left down the track to a crossroads. Turn right towards the east and, after 20 m, don't miss the path on the left, which, after a slight descent, climbs to a limestone bar that it crosses by a passage piercing the rock: the Corne Bœuf. At the upper end of the path, continue eastwards until you come to a junction with a good track (signposted).

(5) Take this path straight ahead, to the left, to the north. It gradually descends towards a stretch of water (a simple marsh in summer), which you follow to its northern end.

(6) Take the path north again. After a sill, it descends slightly towards the Lac d'Armaille until you come to a major crossroads. Descend to the right as far as the ford over the Ruisseau d'Armaille.

(7) A footbridge rebuilt to the left of the ford allows you to cross the Ruisseau d'Armaille and continue on towards the Lac d'Armaille, where it joins the eastern bank.

Variation and deviation: if the footbridge can be washed away, if it is not usable or if the water level is high, return to the crossroads then continue for a few metres to take a path on the left (east) that joins the stream at a narrow point where a gate is laid across it.

(8) Go up the left bank to a track coming from Thoys, which you take on the left.

(9) Keep straight on along the track, which rises a little to reach the D41 coming from Belley.

(10) Follow it to the left, passing near the hamlet of Trappon, cross the Ruisseau de Marchand and, after a straight stretch, let the D41 go off to the right towards Saint Germain-les-Paroisses.

(11) Turn left onto a carriage road and after 80 m, turn right to climb a hill. On the way down, turn right to go around the Bouve lake and join a good gravel road which you follow to the north-west until you rejoin the D41.

(12) Turn left onto the D69b towards Colomieu for 100 m, then turn right onto the Chemin de Challière and cross the hamlet of Cessieux.
- After the bend, take the path on the left past the oven building. It rises in stages along the retaining walls before dropping slightly at a crossroads.

(13) Take the path that climbs back up into the forest and skirts a wooded ridge. It gets a little lost: avoid following it on the eastern side of the ridge. A path then veers off to the right, crossing the ridge again and running down its western slope to a meadow.
- The path becomes a sunken track that runs along the edge of the meadow and joins a good forest track, which you take to the right as far as the crossroads with the track coming from Appregnin.

=> Diversion.Turn right ontothe track towards Appregnin, then left twice to rejoin the itinerary and the rest of the description.
See practical information.

(14) Take this track on the left, heading south.

=> Continue straight on until you reach Lac d'Arborias. Turn right to go up the hill until you reach a crossroads in the Igonettes area.

(15) Turn left and descend to the edge of Lac d'Arborias. Drive along its western shore and continue straight ahead on a small road that leads back to Colomieu via the Route du Vernay. Go through the village to reach the(S/E).

Waypoints

  1. S/E : mi 0 - alt. 1,056 ft - Colomieu
  2. 1 : mi 0.19 - alt. 1,066 ft - Calvary on the chemin de la Coule
  3. 2 : mi 0.59 - alt. 1,178 ft - Bagne. Path on the left
  4. 3 : mi 1.14 - alt. 1,188 ft - Foot of Recania
  5. 4 : mi 1.26 - alt. 1,296 ft - Highest point in Recania
  6. 5 : mi 1.53 - alt. 1,211 ft - Ox horn cross
  7. 6 : mi 1.98 - alt. 1,109 ft - North end of Lac de Corne Bœuf
  8. 7 : mi 2.38 - alt. 1,122 ft - Ford and footbridge or alternative
  9. 8 : mi 2.48 - alt. 1,135 ft - Crossing grid in the event of diversion
  10. 9 : mi 2.74 - alt. 1,122 ft - East bank of Lac d'Armaille
  11. 10 : mi 3.13 - alt. 1,158 ft - Arrival on CD 41
  12. 11 : mi 3.5 - alt. 1,148 ft - Crossing - leave the CD 41
  13. 12 : mi 4.33 - alt. 1,178 ft - CD 41 - CD 69B junction
  14. 13 : mi 4.85 - alt. 1,286 ft - La Cense Wood
  15. 14 : mi 5.25 - alt. 1,191 ft - Crossing Chemin venant d'Appregnin
  16. 15 : mi 5.59 - alt. 1,227 ft - Les Igonettes, above Lac d'Arborias
  17. S/E : mi 7.4 - alt. 1,056 ft - Colomieu

Notes

No technical difficulties. Most of the route is on the right path, whether signposted or not.
Orientation is a little trickier in two places:
- after(3) to climb to the summit of Recania but this return trip is optional.
- after(13), the path becomes lost a little further on and the trail across the ridge can be missed. A longer diversions, but one that is easier to follow, is possible: turn right to the west on a path that first rises a little, then descends towards Appregnin, where you then take the gravel path to the left leading back to(14).

The main difficulty may come from the water level, which can sometimes force you to deviate from the normal path to go around it in the forest.

The path is signposted (yellow) between the Corne Bœuf junction(5) and the D41(10), then again after(11) for a while.
In the Corne Bœuf sector, Green dots can be followed but they are hardly visible with the moss.

Worth a visit

The Roche Percée de Corne Bœuf is an original site.
There are many pools of water, whose appearance changes according to the height of the water and the light.

As the route does not rise very high, there are few viewpoints: the main ones to be seen are the peaks close to Bugey (Montagne de Tentanet, Montagne de Saint-Benoît, Grand Thur, Mont du Chat, Grand Colombier and Valromey, Mollard de Don, Mont Pela, La Cra), as well as a few glimpses of Mont Blanc, Tournette and Granier.

Reviews and comments

3.8 / 5
Based on 22 reviews

Reliability of the description
3.6 / 5
Ease of following the route
3.5 / 5
Route interest
4.2 / 5
RJN
RJN
• Edited:

Overall rating : 2 / 5

Date of your route : Oct 14, 2025
Reliability of the description : ★☆☆☆☆ Very disappointing
Ease of following the route : ★☆☆☆☆ Very disappointing
Route interest : ★★★★☆ Good
Very busy route : No

Hello
Between points 13 and 14, the path is overgrown with brambles and impassable.
Using GPS, it is possible to reach point 14 with some difficulty.
I think this route can be modified from point 13 onwards: take the path on the right, then turn left twice, which leads to the village of Appregnin, and then you will reach point 14.
According to the maps, this is a possibility, but it has not been tested to date.
GPS is very useful on this hike as there are almost no markings

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licence54
licence54
• Edited:

Overall rating : 3.7 / 5

Date of your route : Jun 05, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

From point 13 onwards, there was no path, everything was overgrown with brambles. We spent a long time looking for this famous track. In my opinion, we should include the alternative route in the itinerary, as it's only 1 km away and will be much easier...
Lac d'Arborias is hardly visible, but it's a nice walk otherwise.

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Kahces-jesfi4-dizfaq
Kahces-jesfi4-dizfaq
• Edited:

Overall rating : 2 / 5

Date of your route : Feb 22, 2025
Reliability of the description : ★☆☆☆☆ Very disappointing
Ease of following the route : Not used / Not applicable
Route interest : ★★★☆☆ Average
Very busy route : No

walk on visorando

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giovinette
giovinette
• Edited:

Overall rating : 2.7 / 5

Date of your route : Jul 29, 2024
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★☆☆☆ Disappointing
Route interest : ★★★☆☆ Average
Very busy route : No

This circuit is impassable between point 13 and point 14, the forest has reclaimed its rights, brambles +++ non-existent path, to be able to do this circuit
At point 13 take the path towards Appregnin then turn left 2 times to reach point 14 . GPS essential.
The return along the lake is monotonous at this time of year.
You can't see the lake.

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Mana62
Mana62
• Edited:

Overall rating : 2.7 / 5

Date of your route : Jul 14, 2024
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★☆☆☆ Disappointing
Very busy route : No

It was with great disappointment that we made this hike. And it's the first time this has happened to me.

You have to keep looking at your phone to make sure you don't take the wrong route, and only once did you see signs at the start. Well, that's not our fault in itself, but halfway to stage 10/11, I think. There are NO, and I mean NO, paths. Yet we followed the walking route to the letter and found ourselves in the middle of a forest surrounded by brambles, nettles, having to climb tree trunks etc. In short, super dangerous and not great for the fauna and flora to pass through and crush everything on their territory...
As far as I was concerned, there were no really interesting viewpoints and no access to the lakes to land on.
Unfortunately, I didn't really enjoy it at all.

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velorando
velorando
• Edited:

Overall rating : 5 / 5

Date of your route : May 24, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

This was a lovely walk with a variety of landscapes. We enjoyed just about everything, especially the walk through the forest that leads to the Lac d'Armaille, a very easy walk, thanks to the author.

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marielinebrun
marielinebrun
• Edited:

Overall rating : 3.7 / 5

Date of your route : Feb 22, 2024
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

Fortunately, the GPS enabled us to follow the entire route. There were two unclear sections: section 2, on how to reach the ridge and then the pierced rock, and section 10, where there was no path to follow along the ridge.

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Eleny
Eleny
• Edited:

Overall rating : 3.3 / 5

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

Ford over the Ruisseau d'Armaille (crossing points 5 and 6): there is now a beautiful wooden footbridge that prevents your feet from getting wet.
In the description (1) let the paths go off to the right then to the left and to Bagne etc....: it's vague which made me take a path, I think before Bagne, which I didn't see nor Corne boeuf. That's for another time.
Is a GPS essential? Not at all, I don't have one and we manage very well without one, you just need to know how to read a map.

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PatBallade
PatBallade
• Edited:

Overall rating : 3.3 / 5

Date of your route : Nov 20, 2023
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

We did this route under grey skies, which must be very pleasant in very hot weather because it's in undergrowth. As we were a little distracted, we went almost 1 km further than the circuit: by following the yellow markings, we found ourselves on a path parallel to the circuit which took us directly to point 3. A little round trip and that was it. At points 5/6 the footbridge was inaccessible, and the path to the gate is not very well marked. For the rest, thanks to the GPS, which was a great help, especially on the last part of the circuit.

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valitzler
valitzler
• Edited:

Overall rating : 4.7 / 5

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

Nice discovery of this little lake, of the pierced stone, and a quiet walk. The end is a little less interesting, but it is possible to cut through the forest.

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Hervebu
Hervebu
• Edited:

Overall rating : 4.7 / 5

Date of your route : Sep 25, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Great walk, very easy with few changes in altitude.
To make the route easier, you can turn right at point 10 and then left as far as Appregnin. At point 405, leave Appregnin behind you until you reach point 12, to stay on fairly well-marked paths and make sure you don't miss the bucolic Lac de Arborias.

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MarjorieSGN
MarjorieSGN
• Edited:

Overall rating : 4 / 5

Date of your route : Jun 24, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

Nice little hike, especially the first half. I don't think many people take the paths in the second half of the hike because nature has taken over. The path has all but disappeared, with trees blocking the way and bramble bushes covering the path. Make sure you use the GPS.
Apart from that, it's a very easy hike physically.

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groupe ballade73
groupe ballade73
• Edited:

Overall rating : 4 / 5

Date of your route : Nov 11, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A very pleasant route, varied between undergrowth and meadows.
Without GPS, you need to be careful in some places. (Part 2 Racamia and between parts 10 and 11)
Easy walk, pretty colours at this time of year (November).
Avoid if you have several days of rain beforehand, as the sections near the lakes are marshy.

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michelbi38
michelbi38
• Edited:

Overall rating : 4.3 / 5

Date of your route : May 29, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

A very pleasant route, partly shaded.
Colomieu is a beautiful little village, as is the hamlet of Cessieux.
We strongly advise you to use a GPS, as many of the paths can be misleading.
At point 2 (Récania ascent) it is impossible to reach the viewpoint as the vegetation has taken over.

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masdelaraz38
masdelaraz38
• Edited:

Overall rating : 3.7 / 5

Date of your route : May 22, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant walk through the marshes and around waterholes. The route alternates between woodland and marshland, which is a little dry at this time of year. The GPS was very useful, as the vegetation had re-grown at certain points. Take something to drink as there are no water points on the route. The little plus point is the passage through the corne boeuf, which is nice and cool. Because of the proximity of the marshes, there are a lot of mosquitoes, so beware of those who are sensitive. At point 2 (ascent to Recania), even with the GPS and following the instructions, we encountered difficulties and ended up with a panorama that wasn't quite as appealing as we'd hoped. It was possible to have a picnic in some places.
Thanks for a great time.

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