Col de la Chau from Saint-Jean-en-Royans
Col de la Chau from Saint-Jean-en-Royans: 26.9 km at 4.8% average and 1,303 m of climbing, up to 1,337 m.
- Distance
- 26.9 km
- Elevation gain
- 1,303 m
- Elevation loss
- 191 m
- Average gradient
- 4.8 %
- Start altitude
- 236 m
- Road
- Departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 16.3 %
- Hardest 2 km
- 8.9 %
- Hardest kilometre
- km 10 · 9.4%
- Above 8%
- 5.0 km (19% of the climb)
- Difficulty index
- 4.9 Moderate
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 | 2h23 | 11.3 km/h |
| 3.0 W/kg — 210 W | 1h40 | 16.1 km/h |
| 4.0 W/kg — 280 W | 1h20 | 20.3 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 | 6.5 % | 300 m |
| 2 | 7.4 % | 375 m |
| 3 | 9.2 % | 467 m |
| 4 | 6.8 % | 535 m |
| 5 | 8.4 % | 619 m |
| 6 | 8.8 % | 706 m |
| 7 | 7.6 % | 782 m |
| 8 | 8.2 % | 864 m |
| 9 | 3.8 % | 902 m |
| 10 | 9.4 % | 996 m |
| 11 | 1.3 % | 1,010 m |
| 12 | 0.1 % | 1,011 m |
| 13 | 3.8 % | 1,049 m |
| 14 | 1.6 % | 1,065 m |
| 15 | 1.1 % | 1,076 m |
| 16 | 2.2 % | 1,099 m |
| 17 | 1.5 % | 1,114 m |
| 18 | 4.7 % | 1,161 m |
| 19 | 1.1 % | 1,172 m |
| 20 | 3.0 % | 1,201 m |
| 21 | 3.1 % | 1,232 m |
| 22 | 6.5 % | 1,297 m |
| 23 | 5.8 % | 1,356 m |
| 24 | 5.6 % | 1,412 m |
| 25 | 2.1 % | 1,433 m |
| 26 | -4.0 % | 1,392 m |
| 27 (partial) | -4.9 % | 1,348 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Vassieux-en-Vercors 5.1 km · 6.0 %
Frequently asked questions
How long is the climb to Col de la Chau?
The hardest climb of Col de la Chau, from Saint-Jean-en-Royans, is 26.9 km long for 1,303 m of ascent, i.e. 4.8% average.
What is the steepest part of Col de la Chau?
The steepest 500 m sits at 16.3%, and the hardest kilometre is the 10th, at 9.4%.
How long does it take to climb Col de la Chau from Saint-Jean-en-Royans?
Col de la Chau from Saint-Jean-en-Royans takes about 1h40 at 3.0 W/kg, i.e. 16.1 km/h on average. The page gives three levels and their assumptions.
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