In the footsteps of Saint-Desle

A beautiful walk in the forest with a peat bog, numerous ponds and the Saint-Desle fountain. Very pleasant in summer.
Please note that during the week, part of the route may be closed for military reasons (proximity to a shooting range). Please check with the town hall on 03 84 30 10 87. In this case, you can bypass the point (4) by following the tarmac road to the point (9). (Route shortened by 4 km).

Details

49860
Creation:
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  • Walking
    Activity: Walking
  • ↔
    Distance: 12.29 km
  • ◔
    Average duration: 3h 40 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 42 m
  • ↘
    Descent: - 35 m

  • ▲
    Highest point: 347 m
  • ▼
    Lowest point: 303 m

Photos

Description of the walk

To get to Saint-Germain, take the RD486 between Lure and Mélisey. Pass the town hall (check the shooting range's opening days, as part of the route may be closed) and follow Rue des Écoles for 500 metres. Park your car just after the last houses at the corner of the woods.

(S/E) Follow the paved road (signposted Fontaine Verte) that enters the forest and passes in front of an isolated house at a place called "Derrière Montaigu". The road surface becomes stony and passes over a large dyke, revealing the "La Grande Pile" peat bog on the right.

(1) At the bend, take the path that leads off to the right into this 150,000-year-old protected area.

__It is essential to stay on the path and use the footbridges that have been installed, otherwise you will sink into the peat, which is often more than 10 metres deep. The wet landscape with its forest of pollarded birch trees transports you to another world. At the end of the peat bog, do not turn left (large yellow sign) but continue straight ahead, following the signs for Fontaine Verte. A few information boards catch the hiker's attention.

The trail leaves the marshy area and climbs and winds through the forest. It comes out onto a good path which you should take to the left (towards Franchevelle – signposted Fontaine Verte and the horseshoe-shaped bridle path). Don't be tempted by this beautiful straight line; instead, take the path on the left marked with the Fontaine Verte sign, which will lead to a forest road that you must cross. A few hundred metres further on, turn right into a trench and follow it to reach the banks of the Étang du Grand Saint-Maurice (also known as the Grand Étang du Mont Reveaux).

(2) There are numerous facilities where you can take a short break. Cross the dyke and turn left at the end to go around a smaller pond. Turn left again onto the dyke around this pond. At the road, turn slightly right and then immediately left to follow the straight trench (unmarked) to rejoin a second forest road.

(3) Then turn right (you will see the Fontaine Verte signpost) and leave the woods to come out onto a good tarmac road. If shooting practice is taking place, turn left to return to point 9, otherwise turn right and continue for about 30 metres, noting a stone cross dating from 1863.

(4) Turn left onto the straight track that leads to the dyke of a beautiful pond, which is unfortunately often empty. The beautiful track continues along a path that curves sharply to the left, with another pond on the left, and arrives at the dyke of a third pond, which is usually dry, leading to a beautiful path.

(5) At the end of the bend, take the first path on the right and cross the stream over a small bridge.

(6) Leave the woods, cross the meadow and, in the woods opposite, take a poor path on the left at the foot of the wooded hill. After 500m, you will come to a slightly better path. Turn left again, continue for 100m and you will see the "Fontaine Verte" signpost.

(7) At the first signpost, turn immediately left into the damp copse, cross the stream on a footbridge and walk to the Saint-Desle fountain and back. The path is well marked with numerous signposts.

(8) Retrace your steps to the previous crossroads.

(7) Take the path on the left that you left on the way out, which passes between pastures. When you reach the paved road, linger near the model aircraft enthusiasts.

(9) Continue straight ahead towards Saint-Germain. After 300 metres, leave the tarmac road and turn left into the forest (marker on the last pasture post on the right). The path winds its way up to the biggest climb of the day (35 m elevation gain). You will notice the Pierre des Ânes, shaped like a school desk with an inkwell. It is said to have been a meeting place for schoolchildren playing truant.

(10) Continue along the path. At the edge of the woods, turn left and, despite the low height, you will see a viewpoint over Saint-Germain on the right.
A short descent brings us back to our vehicle (S/E).

Waypoints

  1. S/E : km 0 - alt. 316 m - Rue des Écoles
  2. 1 : km 1.8 - alt. 331 m - Grande Pile peat bog
  3. 2 : km 3.89 - alt. 324 m - Mont Revaux pond (Grand St Maurice)
  4. 3 : km 6.17 - alt. 322 m - Forest road
  5. 4 : km 7.1 - alt. 310 m - Stone cross, 1863
  6. 5 : km 8.13 - alt. 306 m - Pond
  7. 6 : km 8.83 - alt. 303 m - Small bridge
  8. 7 : km 9.77 - alt. 307 m - Fontaine Saint-Desle crossroads
  9. 8 : km 10.1 - alt. 305 m - Saint-Desle fountain
  10. 9 : km 11 - alt. 310 m - Tarmac road, opposite
  11. 10 : km 11.8 - alt. 335 m - Pierre aux Ânes
  12. S/E : km 12.29 - alt. 316 m - Rue des Écoles

Notes

In the bog, if you look carefully, you may see a few Drosera plants (tiny carnivorous plants) or dragonflies such as the Leucorrhine Douteuse (a magnificent orange and black dragonfly) or its cousin, the Leucorrhine à gros thorax.
In the forest: biodiversity is also protected here, as can be seen along the route with trees carved like Indian totems by Master Woodpecker.
On the ponds: herons and egrets greet you.
Saint-Desle: driven out of Luxeuil by King Thierry II of Burgundy, he wanders through these humid and marshy forests. Tormented by thirst, he planted his stick and a spring gushed forth, said to have the power to heal sick children suffering from convulsions or eye diseases. Until the 1960s, it was a place of pilgrimage.
Pierre des Ânes: a few blocks of sandstone left behind by the glacier, the last of which is called "Pierre des Ânes" or "Pierre des Écoliers" (Donkey Stone or Schoolchildren's Stone). With a little imagination, the shape of this stone can be compared to that of old school desks, with a hole symbolising an inkwell.

Some sections may be a little slippery in wet weather, so wear good shoes or even boots.
There are tables and benches halfway along the route, on the edge of the Grand Saint-Maurice pond.
The route passes through a protected area around a shooting range. Check with the Saint-Germain town hall for the days and times of exercises.

Worth a visit

Saut de l'Ognon in Servance.
Nature museum at Château Lambert.

Reviews and comments

4 / 5
Based on 34 reviews

Reliability of the description
4 / 5
Ease of following the route
3.9 / 5
Route interest
4.2 / 5
Thomas_
Thomas_

Overall rating : 3.7 / 5

Date of your route : Sep 04, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

A very good hike despite the rainy morning.
However, be careful with the route indicated by the map creator, as it does not always follow the exact path to take.

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User 11614726

Overall rating : 3.3 / 5

Date of your route : Jun 02, 2025
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★☆☆ Average
Route interest : ★★★★☆ Good
Very busy route : No

A very beautiful walk in warm weather as the route is well shaded. We enjoyed the peace and quiet... However, we got lost several times. But no worries, with mobile phones it's easy to find your way back.

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Romu70
Romu70

Overall rating : 4.3 / 5

Date of your route : Aug 07, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : Yes

A very pleasant route. Pretty woods and ponds, very pleasant exit.
The signage is a little lacking in some places, but overall it's easy to find.

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Nathetad25
Nathetad25

Overall rating : 4.3 / 5

Date of your route : Jul 09, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

A lovely walk to enjoy during the hot summer months. Mostly woodland, with a superb bog area.

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claudeclaire
claudeclaire

Overall rating : 4.7 / 5

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

very beautiful walk; the signposting has been improved, although we did get a little lost.
We did this hike a few years ago in autumn: magnificent.
We just did it again in spring: just as beautiful.

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Pierrot DAVID
Pierrot DAVID

Sorry to hear that
It just goes to show that in a month, opinions can change from very positive to very disappointing. Unfortunately, there's nothing I can do about the work of the loggers, who admittedly don't have an easy job with this bad weather.

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patos
patos

Overall rating : 2.3 / 5

Date of your route : Apr 27, 2023
Reliability of the description : ★★☆☆☆ Disappointing
Ease of following the route : ★☆☆☆☆ Very disappointing
Route interest : ★★★★☆ Good
Very busy route : Yes

Incomplete or missing markings, site ploughed by unscrupulous loggers

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bernard.demboviak
bernard.demboviak

Overall rating : 4.7 / 5

Date of your route : Mar 26, 2023
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Lots of interesting descriptions, but avoid this route in rainy weather as the paths are muddy.
An easy and pleasant hike.

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Pierrot DAVID
Pierrot DAVID
• Edited:

Hike verified today. A few changes have been made to the description and route to make this walk easier to follow. Many green information boards are missing, so please read the description carefully. Work on the peat bog has been completed and numerous information boards have been installed as part of the development of a new trail, the route and markers (hourglass symbols) of which are often visible.

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ABER
ABER

Overall rating : 2 / 5

Date of your route : Jul 09, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★☆☆☆☆ Very disappointing
Route interest : ★★☆☆☆ Disappointing
Very busy route : No

After the St Desles fountain, the signposts completely disappeared. I found myself near the shooting range and the 2x2 road. There's no point in doing this hike because unfortunately everything is dry, including the ponds (except Mont Reveaux, of course).

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Richmond
Richmond

Overall rating : 4 / 5

Date of your route : Feb 28, 2022
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

Very nice walk.
The problem is that in February 2022, they are still redeveloping the trail and footbridges in the reserve. The trail has therefore been altered and the passage of machinery has damaged it a little
Be sure to read the description carefully and check that you are on the right path at all times.
The description specifies that you should "follow the marked trail". In fact, you should follow the "circuit de la tourbière" signs until you reach the top of the peat bog and leave it on your right to continue straight ahead towards "Bois de Billieux", otherwise you will end up almost back at the starting point of the circuit (point 1 in the description).
The Grand St-Maurice ponds are called "étangs du Mont Revaux" on the signs
Then between points 4 and 5, I think it should be made clear that when you reach the third pond, you must not cross the dam but continue on the right.
If you're tired, I don't think it's essential to make a detour to the St Desle fountain. It's a poorly maintained pond that's quite unpleasant to access.
Otherwise, it's a great, easy and enjoyable route. I would suggest waiting two or three months before doing it, though, until the work is finished.

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SOUSROCHES
SOUSROCHES

Overall rating : 3.7 / 5

Date of your route : Mar 29, 2021
Reliability of the description : ★★☆☆☆ Disappointing
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★★ Very good
Very busy route : No

A little disappointed with the route description as it lacked detail, so we didn't follow the entire route because we got lost.

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Blake
Blake

Overall rating : 3 / 5

Date of your route : Sep 09, 2020
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★☆☆☆ Disappointing
Route interest : ★★★★☆ Good
Very busy route : No

Hello.
There is a major stumbling block starting at No. 5. I recommend skipping directly from No. 4 to No. 9.
There is no visible path after the last dry pond.
Also, if you decide to do this route, only do it on Sundays, Saturdays, and Wednesdays.
Otherwise, there's a shooting range. This September, there are about ten shooting days!
But the peat bogs and ponds are superb!

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AAzzBB&&1943
AAzzBB&&1943

Overall rating : 4 / 5

Date of your route : Jul 01, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

Follow the GPX route closely, except from point 7 to point 8, to get to the St-Desle fountain; follow the markers on the ground, not the GPS; the terrain is a bit disrupted by logging work. The "fountain" is more of a stagnant spring; a sign provides interesting explanations. For parking, park at the tennis courts before the last houses

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jenny2
jenny2

Overall rating : 4 / 5

Date of your route : May 22, 2020
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

This route is ideal in warm weather! We observed the constant ballet of dragonflies of all types. There were no birds, due to the time of day, the season and the heat. There were even fewer sundews; you probably need to know where to look to spot them (flowering season?). The view of the ponds is beautiful, and would be even more so at the end of the day or early in the morning.

However, without the help of a GPS, the route would have been difficult to follow. It should be added that you should not follow the wooden signs for "sentier des tourbières" (peat bog trail) but rather the signs for "fontaine verte" (green fountain). At the first three-way junction after the start of the protected area, the only sign points to the peat bog on the right. It is a beautiful path with lovely views of the waterlogged peat bog, but it is not the route! If you continue to follow the "tourbière" sign, you will come back to the first crossroads.
There are also differences between the route and the terrain, but the path is visible, and the general direction (right or left) is usually enough to find your way (between 1 and 2).
PLEASE NOTE: the St Desle fountain is no longer accessible. The wooden footbridge has largely collapsed (fallen trees) and the section beyond is no longer cleared (and therefore inaccessible).

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