Distance: 9.5 km
Duration (average) : 3h
Level: Blue level - Moderate
Elevation: 418 D +
Departure: Voiron
Yellow paint markings and directional posts at the main intersections (if there is no marking, stay on the main road)
SNCF station less than 500 m, Public transport stop less than 500 m, Bus stop less than 500 m
Recommended period (s): Autumn, Summer, Winter, Spring
No delicate passage.


Very accessible from the city center of Voiron, this short nature hike will take you through woods, meadows and glades while discovering the Teissonnière marsh. Take all your time to observe plants and animals as well as possible ...

This site is of significant ecological interest by serving as a breeding site for many amphibians, including the crested newt and the yellow-bellied ringer, but also for certain marsh birds that live in the marshes (Rousserolles verderolles and effarvatte, Bouscarle de Cetti. ..) and many dragonflies (including Mercury's Agrion).
It is also a favorite hunting ground for several species of bats.
The marsh is also home to a regionally protected plant species: Common Ophioglossus.

Additional information : Shops in the city center Hike passable all year round but to be preferred in spring if you wish to admire the fauna and flora of the marsh

Sustainable tourism : 
Mother Nature thanks you for leaving with your waste, she digests it badly! Respect cultures and private properties by staying on marked trails.

Topo/step by step: 
Stages of the circuit with the name of the signposts to follow: - At the post of the Saint-Bruno church, take the direction of Le Bavoir by rue des Quatre Chemins - Le Bavoir - La Garenne - Hauts d'Orgeoise - Les Grattons - La Grattonnière - Bois de Montmain - Les Brosses (- Moneure) Info May 2022: the Moneure post is no longer in place, at the Brush post you must therefore follow Voiron via La Lieure. 100 meters after the post of Les Brosses, turn on the path to the left (you leave the path of Compostela with its symbol of scallops). - La Lieure - The warren - The Bib - Voiron Saint-Bruno

Tips and Suggestions: 
Yellow paint markings and directional posts at the main intersections (if there is no marking, stay on the main road)

to report a problem



Free access.

Equipments & services


  • Parking
  • Toll parking

Home of animals

  • Animals accepted: Yes
  • dogs on leash


The car parks around the St-Bruno church are paying.
The road that connects Orgeoise to Macherin is closed to traffic during the spring migration period (reproduction) to preserve the batrachians that reach the marsh.
EXP1 bus line (Grenoble- Voiron), "Gare coach" stop.

Our contact details

Teissonnière reed bed

Saint-Bruno church - Place de la République

38500 Voiron

Getting to the starting point