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Col de la Colombière
From Scionzier. Length and gradient from an official source; times from the climb time calculator.
- Start
- Scionzier
- 505 m
- Length
- 16.5 km
- Average gradient
- 6.8%
- Max gradient
- 10.2%
- Elevation gain
- 1,108 m
- Summit
- 1,613 m
Source: Route des Grandes Alpes, checked 15 October 2026.
North side from Cluses-Scionzier. The Le Grand-Bornand side on the same page is 11.7 km at 6% (690 m).
Time at your watts
| W/kg | Power | Time | Speed | VAM |
|---|---|---|---|---|
| 2.0 | 140 W | 1:52:00 | 8.8 km/h | 600 m/h |
| 2.5 | 175 W | 1:30:37 | 10.9 km/h | 741 m/h |
| 3.0 | 210 W | 1:16:29 | 12.9 km/h | 878 m/h |
| 3.5 | 245 W | 1:06:30 | 14.9 km/h | 1,010 m/h |
| 4.0 | 280 W | 59:06 | 16.8 km/h | 1,137 m/h |
| 5.0 | 350 W | 48:52 | 20.3 km/h | 1,375 m/h |
| 6.0 | 420 W | 42:09 | 23.5 km/h | 1,593 m/h |
Model estimate in calm air at steady power (Martin et al. 1998). 70 kg rider + 8 kg bike, tops position (CdA 0.358), Crr 0.0032, 15 °C, air density at the climb's mid-elevation. Mid-elevation 1,059 m (air density 1.081 kg/m³). Calculate yours / All climbs
Climb time calculator (prefilled) / All famous climbs