Col du Coq mountain pass
The ascent to Col du Coq is very demanding.
The Col du Coq - 1434 m - is the highest road pass in the Chartreuse Massif. At the top, under the eye of the magnificent and impressive Dent de Crolles, which seen from this angle, offers a sublime ridge similar to that of a rooster, you'll be rewarded with a magnificent view of the Massif de Belledonne.
Route details
Take the RD30 from the intersection with the RD1090.
Pass through two tunnels just after the 6-km marker.
Just before the 7th km, turn left onto the RD30e and carry on until you reach Col du Coq.
Opening
From 01/05 to 31/10 daily.
Subject to favorable weather.
Discover more
Go there
Latitude : 45.256361
Longitude : 5.847044
Height : 347
route de St Pancrasse
D1090 / D30
38330 Saint-Nazaire-les-Eymes
Go there
A TER line serves the Lancey station.
The start of the Col des Coq climb is around ten kilometers away.
Information updated on 24/08/2026
by Isère Attractivité
