From Saint-Nazaire-les-Eymes
Departmental road
Col du Coq, 1,434 m, in Isère. Main climb: 13.9 km at 8.4% average, 1,168 m of climbing from Saint-Nazaire-les-Eymes.
Figures for the main climb (From Saint-Nazaire-les-Eymes). The other climbs are further down.
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Saint-Nazaire-les-Eymes | 13.9 km | 1,168 m | — | 8.4 % | 16.1 % | 10.3 Hard |
| From Saint-Laurent-du-Pont | 20.1 km | 1,208 m | 221 m | 6.0 % | 21.4 % | 5.3 Sustained |
Scroll the table sideways to see every column.
Departmental road
Minor departmental road
2 ascents proposed here — other ways up this col remain possible.
Distances and elevation gains derived from the OpenStreetMap road network and a digital terrain model, measured on the very profile shown here.
Figures computed on 7 September 2026.
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
The hardest climb of Col du Coq, from Saint-Nazaire-les-Eymes, is 13.9 km long for 1,168 m of ascent, i.e. 8.4% average.
The steepest 500 m sits at 16.1%, and the hardest kilometre is the 11th, at 10.6%.
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