Loop

à Saint-Geoire-en-Valdaine

N°92 – Valdolac

Visitor alert

Route affected by the dismantling of a footbridge for safety reasons, please refer to another route.

This black circuit allows you to admire the diversity of the landscapes of the paths of the Pays Voironnais. You overlook the Lac de Paladru, discover the peaceful hills of Valdaine, skim past marshes, lakes and ponds. A great challenge for athletes!

You will not see the 92 kilometers of this route pass by whatever starting point you choose (Saint-Geoire-en-Valdaine or Charavines)! The first kilometers are on small, quiet country roads before taking you on forest or stony tracks, sometimes single-track in the undergrowth or across fields.

If you start from Saint-Geoire-en-Valdaine, around km 64 near Charavines, take a break and take advantage of the shops to get supplies.
If you start from Charavines, fill up on site or in Saint-Geoire-en-Valdaine, you will not find anything on the rest of the route.

A shortcut around km 83 (km 17 if you are coming from Charavines), at the place called La Davière (Massieu), allows you to avoid the climb to Lac de Saint-Sixte and save yourself 5 km and 270 m of positive elevation gain; a sign indicating “shortcut” is in place.

Tips and Suggestions

The Natura Vélo MTB/Cyclo school offers mountain bike rentals, support and sales. Natura Vélo is located opposite the Tourist Office. Washing and inflation terminal in front of Natura Vélo, tokens on sale at Natura Vélo and at the Tourist Office.

Expert's word

Visitor alert text saved on 27/02/2026
Be careful, large ruts have formed following the bad weather of the last few months, at the level of the descent towards the Notre-Dame de Milin chapel in the town of BURCIN, they can be difficult to cross by mountain bike.
If it has rained in the days before your visit, the descent below Mont Follet (km 69) will be muddy and eroded.

Step-by-step guide

Benefit from voice guidance on OnPiste: https://www.onpiste.com/explorer/destinations/pays-voironnais-426

Highlights along the route

Free parkingParkingPicnic area.Cycling sportsMTB route

LevelVery difficultElevation2170 D +Distance92,0 km

To download

Mountain biking trails marked by the French Cycling Federation (FFC). The trails are identified by their numbers on the markers. Follow the black trail #92.

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