From Gilly-sur-Isère
Departmental road
Collet de Tamié, 956 m, in Savoie. Main climb: 7.9 km at 7.6% average, 598 m of climbing from Gilly-sur-Isère.
Figures for the main climb (From Gilly-sur-Isère). The other climbs are further down.
| Main climb | Distance | Elevation gain | Elevation loss | Average gradient | Steepest 500 m | Difficulty index |
|---|---|---|---|---|---|---|
| From Gilly-sur-Isère | 7.9 km | 598 m | — | 7.6 % | 13.5 % | 4.5 Moderate |
| From Frontenex | 11.1 km | 657 m | — | 5.9 % | 13.3 % | 3.9 Moderate |
| From Faverges (Faverges-Seythenex) | 10.3 km | 425 m | 95 m | 4.1 % | 10.7 % | 1.1 Easy |
Scroll the table sideways to see every column.
Departmental road
Departmental 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.
Straight-line distances, not road distances. The cols a climb actually rides over are listed above.
The hardest climb of Collet de Tamié, from Gilly-sur-Isère, is 7.9 km long for 598 m of ascent, i.e. 7.6% average.
The steepest 500 m sits at 13.5%, and the hardest kilometre is the 4th, at 11.5%.
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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