Hiking itinerary

Valley of Hien and King's Forest

This hike will offer you a magnificent view of the Mont Blanc chain from the start. You will discover the surrounding mountains at the orientation table. Stop for your picnic at the Belmont landscaped area or at the hunters' cabin.

From the Biol Le Haut car park, follow the direction of Reveret and Biol and follow the small stream to the footbridge. Join the D520, cross it carefully and then follow the D51 for 200m to reach the "La Moutonnière" post. Continue straight ahead until you reach Belmont, where you can have a picnic on an area arranged towards a (private) pond. In Belmont, head towards "Bois Bessay" then pass the posts "les Chasseurs", "le Crépon" and "Les Planches" through the Poullins woods and the king's forest. After 1.4km, in the direction of "Les 3 Coches", there is a hunters' cabin (always open, with water, except in winter). After the "Aux Bois" post, go back and forth to the orientation table. Finally, go down the small road to reach the departure car park.

Technical information

Sports pédestres, Itinéraire de randonnée pédestre

16.7 km

Trail type:

Elevation gain:
405 m

Daily duration:
4h 30m

Map references:
IGN card blue series 3133E

Topographical references:
Mapguide Les Vals du Dauphiné

Difficult sections:
Be careful to cross it from the D520 and along the D51.

Type of waymarkers:
Follow the yellow markings along the route.

Practical information

Free of charge

Please note

Adaptez votre équipement en fonction de votre niveau et de la météo. Ne pas quitter les sentiers.

Good deals!

Biol, is a village with a rich heritage with a 15th century fortified house, its washhouse and its halls. In Belmont, admire the fortified houses with their traditional Dauphinois roofs. On the way, you will discover a stele in memory of the Americans' stay during the 2nd World War.

Contact details & information

Office de Tourisme Les Vals du Dauphiné

Getting here

  • Parking
    Intersection Rue du 19 mars 1962 et Chemin du Barracas
    38690 Biol

From Bourgoin Jallieu take the D1085 towards Grenoble, after Nivolas Vermelle, turn left onto the D520, after 4km at "Le Rapoux", turn right, direction Biol le Haut, the car park is 100m after the church.

Opening times

All year round.
Subject to favorable weather.


Free access.


Information updated on 26/06/2023 by Isère Attractivité

Your itinerary

Valley of Hien and King's Forest

Intersection Rue du 19 mars 1962 et Chemin du Barracas
38690 Biol

Itinerary with Google Maps