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Routes
Running trails & routes
France
Auvergne Rhône Alpes
Grenoble
Theys

The Grand Rock – Merdaret Pass loop from Theys

Routes
Running trails & routes
France
Auvergne Rhône Alpes
Grenoble
Theys

The Grand Rock – Merdaret Pass loop from Theys

Hard

5.0

(1)

60

runners

The Grand Rock – Merdaret Pass loop from Theys

03:22

21.7km

1,270m

Running

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is accessible with public transport.

Last updated: August 22, 2026

Waypoints

A

Start point

Bus stop

Get Directions
1

9.17 km

Crêt du Poulet Refuge

Highlight • Mountain Hut

The Crêt du Poulet refuge is a really nice spot, located in the heart of an alpine pasture with 40 cows. There is an exceptional panorama of the Belledonne range, …

Translated by Google •

Tip by

10.5 km

Lac de la Belle Aiguette

Lake

11.5 km

Lac de Séchident

Lake

4

12.4 km

The Grand Rock

Highlight • Summit

Summit of the Belledonne range culminating at 1,926 meters above sea level, the Grand Rocher overlooks the Grésivaudan valley. From there, we have an incredible view of the Chartreuse, the …

Translated by Google •

Tip by

5

13.9 km

Cul de Pet

Highlight • Other

Summit with a rather improbable name, the Cul de Pet culminates at 1,837 meters above sea level and offers beautiful views of the Belledonne range.

Translated by Google •

Tip by

6

15.1 km

Merdaret Pass

Highlight • Viewpoint

The Merdaret pass is located at 1,798 meters above sea level. Here you can enjoy a superb view of the high peaks of the Belledonne range and the Haut Bréda valley.

Translated by Google •

Tip by

B

21.7 km

End point

Bus stop

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Way Types & Surfaces

Way Types

10.2 km

6.55 km

1.84 km

1.76 km

1.37 km

Surfaces

10.7 km

4.32 km

4.18 km

1.89 km

250 m

207 m

173 m

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Elevation

Elevation
Nothing selected – click and drag below to see the stats for a specific part of the route.

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Weather

Powered by Foreca

Wednesday 14 October

21°C

7°C

0 %

Additional weather tips

Max wind speed: 4.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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