From Manigod
Departmental road
Col de Merdassier, 1,500 m, in Haute-Savoie. Main climb: 10.8 km at 5.8% average, 624 m of climbing from Manigod.
Figures for the main climb (From Manigod). The other climbs are further down.
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Manigod | 10.8 km | 624 m | 31 m | 5.8 % | 11.5 % | 3.8 Moderate |
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Departmental road
1 ascent 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 de Merdassier, from Manigod, is 10.8 km long for 624 m of ascent, i.e. 5.8% average.
The steepest 500 m sits at 11.5%, and the hardest kilometre is the 4th, at 10.3%.
Sleipnir recognises the cols you cross from the GPS trace of your rides: the col ticks itself off the day you ride over it.
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