From the city of Mandrin to the Château de Sillans

A short walk south of the Bièvre plain. On the way there, you can enjoy views of the Chartreuse mountains and, on the way back, the Pilat peaks.

Details

370466
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 8.96 km
  • ◔
    Average duration: 2h 35 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 11 m
  • ↘
    Descent: - 11 m

  • ▲
    Highest point: 405 m
  • ▼
    Lowest point: 385 m

Photos

Description of the walk

(S/E) Leave the town hall square and head north along Avenue Guyonnet, which runs alongside the town hall building. Immediately turn right onto Rue du Lavoir. Leave this street by taking the first street on the left, Rue des Apprêts. The first street on the right, Rue du Vieux Chêne, will take you to a fairly conspicuous mini-market.

(1) You are now on the D519, the road to Grenoble. Turn left onto it. There is a footpath on the right-hand side of the road. Take this path. The D519 turns to the right. Shortly afterwards, leave it and continue along the footpath that branches off to the right. At the road, first turn left then right to reach the Étang du Vernatel (private).

(2) Continue along this wide gravel path, which will take you to the entrance to Sillans.

(3) You will arrive at the cemetery, which you will go around on the right. After the bend, you will see a wrought iron gate on the left. Step into the cemetery and you will see a drinking water tap on the left.
Further on, make a left-right zigzag to take Rue du Docteur Guyonnet. Follow this road until you reach a T-junction, where you turn right onto Rue Louise Michel.

(4) You will arrive at the Château de Sillans (private). Walk past it and turn right at the crossroads onto Rue Victor Prud'homme (large wooden cross at the crossroads), which will take you to the church in Sillans.

(5) Turn left, then take the first right onto Rue de Vaugauthier. Walk west along this small road, which quickly loses its tarmac surface. At the crossroads, continue straight ahead.

(6) Walk along the woods on your left and continue straight ahead to the Chanclau allotments.

(7) Just before these gardens, go down to the right between two fences to the Chanclau Pond. Cross a wooden footbridge. Walk around the pond, keeping to the right. There are educational panels explaining the flora and fauna of the pond. At the end of the path around the pond, once you have crossed a wooden footbridge over a stream, take the gravel path to the right and return to the original road, which you also take on the right. This will take you back to Saint-Étienne-de-Saint-Geoirs and the Grand Rue, Octave Chenavas, in the extension. When you reach Les Halles, turn right to return to your starting point (S/E).

Waypoints

  1. S/E : km 0 - alt. 394 m - Town hall car park
  2. 1 : km 0.63 - alt. 387 m - Junction D519
  3. 2 : km 1.66 - alt. 388 m - Vernatel Pond
  4. 3 : km 3.66 - alt. 399 m - Sillans cemetery (water source)
  5. 4 : km 4.29 - alt. 401 m - Sillans Castle
  6. 5 : km 4.65 - alt. 399 m - Sillans Church
  7. 6 : km 5.72 - alt. 398 m - Edge of the woods
  8. 7 : km 7.37 - alt. 390 m - Chanclau allotment gardens
  9. S/E : km 8.96 - alt. 394 m - Town hall car park

Notes

Park in the car park in front of the town hall of Saint-Etienne-de-Saint-Geoirs, a small village near Grenoble Saint-Geoirs airport.
You will find all kinds of shops in the town.
There is a water source halfway along the route, at the Sillans cemetery.

Worth a visit

The Château de Sillans.
Chanclau Pond.
A few kilometres away, in La Côte-Saint-André, you will find the Hector Berlioz Museum and the medieval market hall.

Reviews and comments

4.5 / 5
Based on 10 reviews

Reliability of the description
4.7 / 5
Ease of following the route
4.9 / 5
Route interest
4 / 5
Popouruchka
Popouruchka

Overall rating : 4.3 / 5

Date of your route : Mar 11, 2026
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

A nice, flat walk for an afternoon stroll.

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User 19519257

Overall rating : 3.7 / 5

Date of your route : Dec 15, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

Easy route. Lovely around the ponds.

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les marcheuses de veurey
les marcheuses de veurey

Overall rating : 5 / 5

Date of your route : Nov 07, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A pleasant hike with a bit of road walking, but which allows you to discover the Château de Sillans, a beautiful church, the countryside and forest.
A superb afternoon with beautiful sunshine.

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dougere
dougere

Overall rating : 4.3 / 5

Date of your route : Nov 08, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★☆☆ Average
Very busy route : No

The pond and country lanes are very pleasant, but the section through Sillans from 3 to 6 is too close to residential areas. Between the dogs barking as we pass and the lorries driving along these narrow roads to get to businesses in Sillans, we are eager to get back to the dirt tracks.
The pond is well laid out and well maintained, with parking, toilets, tables and benches.

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DAVID  jean luc
DAVID jean luc
• Edited:

Overall rating : 4.7 / 5

Date of your route : May 20, 2021
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : No

Very easy hike on flat terrain in the Bièvre plain between Saint-Étienne-de-Saint-Geoirs and Sillans!!!!!!

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Antares
Antares

Overall rating : 4.7 / 5

Date of your route : May 24, 2020
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good
Very busy route : Yes

A very pleasant, flat and extremely easy short walk. The explanations are clear. Thank you very much for this discovery!

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Georgette PERRIER
Georgette PERRIER

Overall rating : 5 / 5

Date of your route : Nov 06, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good

We really enjoyed this easy hike with beautiful scenery, especially around the ponds.

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gerard bonnet
gerard bonnet

Overall rating : 4.3 / 5

Date of your route : May 04, 2017
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

There is an error in the GPS starting point
The arrival and departure points are not the same
The arrival coordinates are correct
Kind regards

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roudet
roudet

Overall rating : 4.7 / 5

Date of your route : Mar 30, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

A pleasant hike for getting back into day walking with very little elevation gain, but ending with the beautiful Chanclau lake with a little extra to the hike... because you can take a very pleasant walk around this lake.

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j-jacques
j-jacques

Overall rating : 4.7 / 5

Date of your route : Jan 31, 2017
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★☆ Good

Very well written parish specific to Brittany description...!!!! I wasn't expecting a castle this big... A lovely little trip.

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