The Observatory and Fort de Lorette around Saint-Genis-Laval

A circular route that takes you to the Saint-Genis-Laval observatory via the Sacuny plateau and around Fort de Côte-Lorette.

Details

65419172
Creation:
Last update:
Last review:
  • Walking
    Activity: Walking
  • ↔
    Distance: 7.58 km
  • ◔
    Average duration: 2h 30 
  • ▲
    Difficulty: Easy

  • ⚐
    Back to start: Yes
  • ↗
    Ascent: + 104 m
  • ↘
    Descent: - 106 m

  • ▲
    Highest point: 296 m
  • ▼
    Lowest point: 205 m

Photos

Description of the walk

Park at Clos de la Naive, near the Auchan store.

(S/E) Follow Chemin de Naive, then turn right to cross the bridge over the A450 motorway. Continue to the roundabout.

(1) Turn left onto the Chemin de la Pillotte footpath just behind the main road and follow it to the end.

(2) Cross Avenue Chanoine Cartellier, take Chemin de la Pilotte opposite and walk along a field to reach the Chemin des Barolles crossroads.

(3) Continue straight ahead on this path until you reach Avenue du Maréchal Foch, which is also the D486.

(4) Cross and climb the fairly steep slope of Chemin de la Pierre Souveraine to the junction withthe GR®169.

(5) Take this path opposite and follow the red and white markings. You will reach the Sacuny Plateau and then the Lyon Observatory. Continue until you reach a five-way crossroads. Leave theGR® here and turn right onto Rue des Martyrs. A few metres further on, you will find the Fort de la Côte-Lorette crossroads.

(6) Turn left to go around the fort.

(6) Back at the crossroads, turn left onto Rue des Martyrs. Continue, crossing Avenue du Maréchal Foch with caution. Continue straight ahead onto Rue de la République to reach the entrance to Château de Beauregard.

(7) Keep left on Rue de la République, then turn right at the roundabout onto Avenue de Verdun. Continue to another roundabout.

(8) Turn left here onto Route de Charly. Stay on this road at all junctions and cross the A450 again to reach the junction with Rue des Ménestrels.

(9) Turn right onto this road and, at the end, you will come to Chemin de Naive. Turn right onto this road to return to the car park near the Auchan store (S/E).

Waypoints

  1. S/E : km 0 - alt. 220 m - Clos de la Naive car park
  2. 1 : km 0.23 - alt. 224 m - Roundabout
  3. 2 : km 0.54 - alt. 228 m - Avenue Chanoine Cartellier
  4. 3 : km 0.8 - alt. 229 m - Chemin des Barolles
  5. 4 : km 1.24 - alt. 220 m - D486
  6. 5 : km 2.04 - alt. 282 m - GR169
  7. 6 : km 3.14 - alt. 278 m - Crossroads of - Fort de Côte Lorette
  8. 7 : km 4.74 - alt. 234 m - Beauregard Castle
  9. 8 : km 5.17 - alt. 221 m - Charly Road
  10. 9 : km 7.03 - alt. 226 m - Rue des Ménestrels
  11. S/E : km 7.58 - alt. 220 m - Clos de la Naive car park

Notes

Only on tarmac except for the fort (clear path).

Worth a visit

(6) Fort de Côte-Lorette is a former military fortification built between 1874 and 1894 in the commune of Saint-Genis-Laval, south-west of Lyon. It is part of thesecond belt of Lyon and, more broadly, the Séré de Rivières system. This fort, standing at an altitude of 290 metres, covered the municipalities of Chaponost and Brignais. It was also used to control the roads to Saint-Étienne and Givors, as well as providing support for the Fort du Bruissin and the Fort de Feyzin. 120 prisoners from Montluc prison were massacred there on 20 August 1944.
(7) Beauregard Castle

Always be cautious and plan ahead when you're outdoors. Visorando and the author of this route cannot be held responsible for any accidents occurring on this route.

The GR® and PR® markings are the intellectual property of the Fédération Française de Randonnée Pédestre.

Reviews and comments

4.4 / 5
Based on 7 reviews

Reliability of the description
4.4 / 5
Ease of following the route
4.6 / 5
Route interest
4.3 / 5
User 28687622

Overall rating : 3.7 / 5

Date of your route : Apr 06, 2026
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

A really lovely route for the first half, as it takes you straight out into the countryside. The second half is less interesting, as it goes through town or residential areas.

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FST
FST

Overall rating : 3.7 / 5

Date of your route : Sep 08, 2025
Reliability of the description : ★★★☆☆ Average
Ease of following the route : ★★★★☆ Good
Route interest : ★★★★☆ Good
Very busy route : No

First part (discovering the observatory and Fort Lorette) very interesting, but the return journey through the city is rather dreary!

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Fredy66
Fredy66

Overall rating : 3.7 / 5

Date of your route : Apr 21, 2025
Reliability of the description : ★★★★☆ Good
Ease of following the route : ★★★★☆ Good
Route interest : ★★★☆☆ Average
Very busy route : No

The first part was nice, but the second part was far too urban and not enjoyable!

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domona64gmail.com
domona64gmail.com
• Edited:

Overall rating : 5 / 5

Date of your route : Apr 21, 2025
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : Yes

A gentle stroll along small roads or paths in a peaceful setting with virtually no elevation gain. Ideal for a walk between seasons. Beautiful houses.

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liliane.clarens
liliane.clarens

Overall rating : 5 / 5

Date of your route : Dec 01, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A route partly along small roads, allowing you to discover old houses with cob walls and superb private properties, before arriving at the Sacuny plateau with its extensive orchards and discovering two historical sites: the observatory and the well-appointed Côte Lorette fort, where you can take a pleasant break.
Thanks to the author for this discovery tour.

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Sud 8
Sud 8

Overall rating : 5 / 5

Date of your route : Dec 01, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

A journey through the countryside and the city, allowing us to discover our historical heritage and the work of arborists.

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18091948
18091948

Overall rating : 5 / 5

Date of your route : Nov 18, 2024
Reliability of the description : ★★★★★ Very good
Ease of following the route : ★★★★★ Very good
Route interest : ★★★★★ Very good
Very busy route : No

Very good walks, easy and relaxing for those who don't like hills.

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