Saint-Romain-au-Mont-d'Or - Mont Thou loop

This is an easy, shaded walk where you can see many orchids in April and a few restored drystone shelters. Mont Thou offers beautiful views of the Saône valley and the Ain plain, and even further depending on the weather.
Drystone shelters are dry stone structures found in the Monts d'Or.

Details

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  • Walking
    Activity: Walking
  • ↔
    Distance: 7.26 km
  • ◔
    Average duration: 3h 15 
  • ▲
    Difficulty: Moderate

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 425 m
  • ↘
    Descent: - 426 m

  • ▲
    Highest point: 598 m
  • ▼
    Lowest point: 177 m

Photos

Description of the walk

The starting point is at the beginning of Rue Route Neuve. Parking is available on the street.

(S/E) Take a path that branches off to the left, in the bend, almost opposite the crossroads, and comes out near a crossroads.

(1) Take the street opposite: Rue du Charroi. Follow this street uphill and it will become Chemin de Pinay after passing under a power line. Ignore the streets and driveways leading off Chemin de Pinay on either side.

(2) When Chemin de Pinay branches off to the right, continue along the path that leads into the woods. Ignore the paths that branch off to the left or right. After the Fontaine aux Salamandres (Salamander Fountain) - signposted "La Fontaine" - follow the signs for "Corniche". After a sharp right turn, the path passes near some old quarries. This section is protected by railings.

(3) At the forest road - signposted "Corniche" - turn left towards "Hameau du Mont Thou".
Follow the forest road until you reach a crossroads with a small road. Turn right onto the road that climbs uphill and follow it until the next crossroads.

(4) When you reach an electrical transformer, turn right, then left to return above the transformer - signposted "Hameau du Mont Thou". Take the path that climbs up to the right opposite the transformer towards "La Caborne d'Antoine". Before turning left, you will see an old wash house.

At the crossroads, signposted "Caborne d'Antoine", turn right towards "Grandes Terres".
Take the time to visit the restored drystone shelter (drystone shelters) then continue on the path towards "Grandes Terres".
This path joins an old road closed to traffic, marked "Grandes Terres", which you should follow to the right towards "Trêves du Loup".

(5) At the crossroads, take the small road towards Fortin du Mont Thou and follow it for about 400 metres. Take the small path on the right that crosses an open space. Follow it to the signpost "Dent du Loup". Turn left to go to Mont Thou.

(6) Enjoy the beautiful view of the Saône valley and the Ain plain, and more if the weather permits. Take the time to walk along the rocky path.

To continue the hike, go back down to the "Dent du Loup" crossroads.

At the Dent du Loup intersection, turn left and immediately right onto the path that leads to the edge of the forest. Head left and follow the edge of the forest for about 150 metres. Then enter the woods.
After about 300 metres, follow the path on the right and at the next crossroads, turn left and continue along this path for 200 metres, ignoring the first path that branches off to the right.
Continue to the next crossroads.

(7) Turn right to reach the road. Cross it and take the small path that descends into the forest in the hollow of the valley. The start of this path is somewhat hidden by vegetation.See photo "point 7".

Over a few dozen metres, the vegetation tries to reclaim the path.
Follow the path down into the valley, winding between or under trees that have fallen during previous storms.

Forty metres before a road, take the path that branches off to the right opposite the gate to a water tower. Follow this path for about 500 metres, ignoring a small path that comes up on the right.
At the crossroads - signposted "Pelossey" - turn left towards "Eaux vives".
This path descends towards the Saône, passing various properties, and joins a road.

(8) Follow the road for a few metres and, in the bend, take the path that descends parallel to a dead-end road.
This path joins a road which you follow downhill. On this descent, you can see the Château de La Rochetaillée on the other side of the Saône valley.

At the next crossroads, turn right to return to the starting point (S/E).

Waypoints

  1. S/E : km 0 - alt. 178 m - Parking: Route Neuve
  2. 1 : km 0.29 - alt. 194 m - Rue du Charroi crossroads
  3. 2 : km 0.8 - alt. 233 m - Entrance to the woods
  4. 3 : km 1.75 - alt. 429 m - Forest road (Corniche)
  5. 4 : km 2.27 - alt. 438 m - Transformer
  6. 5 : km 3.18 - alt. 522 m - Mont Thou crossroads (Trêves du loup)
  7. 6 : km 4.19 - alt. 593 m - Mont Thou
  8. 7 : km 5.18 - alt. 485 m - Turn right towards a road.
  9. 8 : km 6.88 - alt. 229 m - Route
  10. S/E : km 7.25 - alt. 179 m - Parking: Route Neuve

Notes

In wet weather, some paths, particularly near Mont Thou, can be very muddy and slippery.

Worth a visit

In April, you can see various orchids in several places along the route. Picking them is prohibited.

Reviews and comments

4.5 / 5
Based on 58 reviews

Reliability of the description
4.5 / 5
Ease of following the route
4.4 / 5
Route interest
4.7 / 5
User 4976670

Overall rating : 5 / 5

Date of your route : Apr 06, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Nice route, steep slope at the start of the hike.

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lyonsoleil0
lyonsoleil0

Overall rating : 5 / 5

Date of your route : Apr 17, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Very beautiful route

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Matilda
Matilda

Overall rating : 4 / 5

Date of your route : Mar 04, 2024
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

Done in February, few sunny spells and very windy; a very interesting route for stretching your legs (a nice climb at the start). Dry ground so no mud; after heavy rain, the steep descent can be tricky. The highlight of the trip is Mont Thou, at the top of the hill. Breathtaking views. It was very windy, very exhilarating!
The hike took 2½ hours and is ideal for an afternoon or a bit of exercise (the climb is very enjoyable). On the way back, the fallen trees create a very interesting atmosphere.
I wouldn't necessarily do it again, but I recommend it for those who want breathtaking views and some nice climbs.

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Fred345962
Fred345962

Overall rating : 4 / 5

Date of your route : Oct 22, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A shaded hike for most of the route, consisting of a steep climb followed by a steep descent.
Beautiful views from the summit, with Mont Blanc clearly visible on this particular day, which is quite rare.
Pretty paths through the woods.

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revellin
revellin

Overall rating : 4.3 / 5

Date of your route : Sep 25, 2023
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

A beautiful hike with a splendid view from the summit of Mont Thou. The descent from Mont Thou follows a path that is no longer maintained: be careful of dead wood hanging over the path... 2 hours of hiking instead of the 3 hours advertised.

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bernard.cornu
bernard.cornu

Overall rating : 5 / 5

Date of your route : Apr 10, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very pleasant circular walk. The route is remarkably well marked.

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jeanpierre_brot
jeanpierre_brot

Overall rating : 4.3 / 5

Date of your route : Apr 18, 2022
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : Yes

I did this hike twice in two days to test the GPS I just bought. So I downloaded the GTX file and the PDF. I'm impressed by how easy the GTX file is to use and how accurate it is. I frequently compared the description and the GPS, and it was spot on. One comment: the alert for point 7 wasn't necessary this time, as the path was very visible.
Very pleasant hike, stunning view from the summit, and today we could see Mont Blanc. The final part of the route is very busy, with lots of trail runners and cyclists climbing Mont Thou. Great walk 15 minutes from my house with a good elevation gain without taking all day. Impeccable.

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Lolo.Paquien
Lolo.Paquien

Overall rating : 4.5 / 5

Date of your route : Mar 27, 2022
Reliability of the description : Not used / Not applicable
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

Very beautiful view from the top of Mount Thou. Not much flat ground and quite a few people because the weather was very nice at the end of March, but overall a lovely, enjoyable day.

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GAUDRY
GAUDRY

Overall rating : 4.3 / 5

Date of your route : Apr 25, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

The route is described perfectly, really!
The first half of the route is all uphill, quite steep.
Despite a beautiful sunny Sunday, there weren't too many people except at the summit.
Difficult to find parking at the start in St Germain.

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Elsarita
Elsarita

Overall rating : 5 / 5

Date of your route : Apr 17, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A very beautiful loop, mainly through forests and along trails. Superb view of Mount Thou.
I thought it would be very busy, but that wasn't the case.

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nxt6980
nxt6980
• Edited:

Overall rating : 4.7 / 5

Date of your route : Mar 15, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

Trail near Lyon, which I think is very popular. On the day we did it, 13 March, we hardly saw anyone.
I didn't use the description on the website, just the .gpx files for the entire route ==> flawless.
I agree with the advice to be careful because the Monts d'Or are like Swiss cheese with paths everywhere.
At the top of Mont Thou, the view is dominated by Lyon and the Alps, and even more if you're lucky enough to have a beautiful sunny day.

I definitely recommend this route for a peaceful ride on a Saturday or Sunday morning.

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Valmart811
Valmart811

Overall rating : 5 / 5

Date of your route : Mar 01, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

The start was very well explained, but on the descent there were too many directional markers, which caused confusion.
Total distance 9 km instead of 7.26 km.
Having the IGN 1/25,000 map with you would be a plus.

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Vanoise
Vanoise

Overall rating : 3.7 / 5

Date of your route : Feb 18, 2021
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★★ Very good
Very busy route : No

But very muddy. So be aware that in wet weather there is a lot of mud, making it slippery.
Lots of people at the finish line because it's accessible by car.
The descent was poorly explained, or maybe we got lost, but in the end we couldn't complete the loop!
We did 10 km.

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Vince6977
Vince6977

Overall rating : 4.3 / 5

Date of your route : Feb 02, 2021
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Hello,
A very good compromise length of around 7 km with 410 m of elevation gain. And almost the entire route is off-road. Despite good signposting, some junctions are confusing. So just a little room for improvement in this respect. Thank you for the quality of your routes. Remarkable work. Best regards.

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stephlyon
stephlyon

Overall rating : 5 / 5

Date of your route : Dec 19, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Superb hike, 95% on trails (very little road), very well explained and easy to follow. Please note that if there has been a lot of rain, some sections may be muddy or slippery, especially at the very end of the circuit, but there are alternative routes.

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