From Cogny
Minor road
Col du Chêne, 704 m, in Rhône. Main climb: 5.4 km at 6.9% average, 374 m of climbing from Cogny.
Figures for the main climb (From Cogny). The other climbs are further down.
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Cogny | 5.4 km | 374 m | — | 6.9 % | 10.8 % | 2.6 Moderate |
| From Ternand | 8.7 km | 450 m | 12 m | 5.2 % | 10.1 % | 2.2 Easy |
| From Chamelet | 8.0 km | 428 m | 30 m | 5.4 % | 12.9 % | 2.0 Easy |
Scroll the table sideways to see every column.
Minor road
Minor road
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.
Cols one of the climbs above actually rides over — not merely neighbours as the crow flies.
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
The hardest climb of Col du Chêne, from Cogny, is 5.4 km long for 374 m of ascent, i.e. 6.9% average.
The steepest 500 m sits at 10.8%, and the hardest kilometre is the 2th, at 8.4%.
Sleipnir recognises the cols you cross from the GPS trace of your rides: the col ticks itself off the day you ride over it.
Create an accountFree during the beta, no card required — places are limited.
A Polar watch syncs on its own; with any other watch, import your GPX or TCX files.