Col de la Colombière from Thônes
Col de la Colombière from Thônes: 20.1 km at 5.1% average and 1,029 m of climbing, up to 1,613 m.
Opening Fermé l'hiver. Ouverture en général courant mai selon le déneigement.
- Distance
- 20.1 km
- Elevation gain
- 1,029 m
- Elevation loss
- 68 m
- Average gradient
- 5.1 %
- Start altitude
- 651 m
- Road
- Departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 12.3 %
- Hardest 2 km
- 8.3 %
- Hardest kilometre
- km 19 · 9.1%
- Above 8%
- 3.0 km (15% of the climb)
- Difficulty index
- 5.2 Sustained
FIETS index: Δaltitude² / (10 × distance) + max(0, summit altitude − 1,000) / 1,000, lengths in metres. How this index works (article in French)
How long does it take?
| Level | Estimated time | Average speed |
|---|---|---|
| 2.0 W/kg — 140 W | 1h51 | 10.8 km/h |
| 3.0 W/kg — 210 W | 1h18 | 15.5 km/h |
| 4.0 W/kg — 280 W | 1h02 | 19.6 km/h |
Estimated for a 70 kg rider on a 9 kg bike, in still air, at a steady effort and without stopping. Wind, a stop at the fountain or a wheel to sit on move these figures by several minutes.
The route
Climb profile
- 10% and above
- 8 to 10%
- 6 to 8%
- 4 to 6%
- under 4%
Kilometre by kilometre
| Km | Gradient | Altitude at the top of the km |
|---|---|---|
| 1 | 4.8 % | 699 m |
| 2 | 5.3 % | 751 m |
| 3 | 5.8 % | 810 m |
| 4 | 5.5 % | 865 m |
| 5 | 5.3 % | 918 m |
| 6 | 2.7 % | 946 m |
| 7 | -0.3 % | 943 m |
| 8 | -5.0 % | 893 m |
| 9 | 2.5 % | 917 m |
| 10 | 8.1 % | 999 m |
| 11 | 6.6 % | 1,065 m |
| 12 | 5.4 % | 1,118 m |
| 13 | 8.3 % | 1,201 m |
| 14 | 4.1 % | 1,242 m |
| 15 | 4.4 % | 1,286 m |
| 16 | 3.1 % | 1,317 m |
| 17 | 6.5 % | 1,382 m |
| 18 | 6.4 % | 1,446 m |
| 19 | 9.1 % | 1,536 m |
| 20 | 7.3 % | 1,610 m |
| 21 (partial) | 2.0 % | 1,611 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Cluses 19.1 km · 6.0 %
- From Le Grand-Bornand 11.1 km · 6.3 %
Frequently asked questions
How long is the climb to Col de la Colombière?
The hardest climb of Col de la Colombière, from Thônes, is 20.1 km long for 1,029 m of ascent, i.e. 5.1% average.
What is the steepest part of Col de la Colombière?
The steepest 500 m sits at 12.3%, and the hardest kilometre is the 19th, at 9.1%.
How long does it take to climb Col de la Colombière from Thônes?
Col de la Colombière from Thônes takes about 1h18 at 3.0 W/kg, i.e. 15.5 km/h on average. The page gives three levels and their assumptions.
Is Col de la Colombière open all year round?
Fermé l'hiver. Ouverture en général courant mai selon le déneigement.
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