From Saint-Martial
Departmental road
Col du Gerbier de Jonc — 1,417 m
Col du Gerbier de Jonc, 1,417 m, in Ardèche. Main climb: 12.3 km at 5.9% average, 729 m of climbing from Saint-Martial.
At a glance
- Distance
- 12.3 km
- Elevation gain
- 729 m
- Average gradient
- 5.9 %
- Difficulty index
- 4.6 Moderate
Figures for the main climb (From Saint-Martial). The other climbs are further down.
Location
- Department
- Ardèche
- Altitude
- 1,417 m
- Coordinates
- 44.84070, 4.22448
Map of the climbs
- From Saint-Martial
- From Saint-Pierre-de-Colombier
- From Asperjoc (Vallées-d'Antraigues-Asperjoc)
Cycling ascents
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Saint-Martial | 12.3 km | 729 m | 16 m | 5.9 % | 12.1 % | 4.6 Moderate |
| From Saint-Pierre-de-Colombier | 30.7 km | 1,154 m | 144 m | 3.8 % | 10.9 % | 3.7 Moderate |
| From Asperjoc (Vallées-d'Antraigues-Asperjoc) | 33.4 km | 1,182 m | 101 m | 3.5 % | 9.5 % | 3.9 Moderate |
Scroll the table sideways to see every column.
- 10% and above
- 8 to 10%
- 6 to 8%
- 4 to 6%
- under 4%
From Saint-Pierre-de-Colombier
Minor departmental road
From Asperjoc (Vallées-d'Antraigues-Asperjoc)
Departmental road
3 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.
Chains with
- Col du Montivernoux 1,320 m
Cols one of the climbs above actually rides over — not merely neighbours as the crow flies.
Cols nearby
- Col de la Chavade 1,266 m · 23 km
- Col des Nonières 670 m · 23 km
- Col de la Croix de Bauzon 1,308 m · 25 km
- Col de Farges 517 m · 25 km
- Col de l'Escrinet 787 m · 25 km
- Col du Pendu 1,435 m · 26 km
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
Frequently asked questions
How long is the climb to Col du Gerbier de Jonc?
The hardest climb of Col du Gerbier de Jonc, from Saint-Martial, is 12.3 km long for 729 m of ascent, i.e. 5.9% average.
What is the steepest part of Col du Gerbier de Jonc?
The steepest 500 m sits at 12.1%, and the hardest kilometre is the 9th, at 9.2%.
Col du Gerbier de Jonc: add this col to your collection
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