Col des Nonières from Lamastre
Col des Nonières from Lamastre: 8.1 km at 3.3% average and 268 m of climbing, up to 670 m.
- Distance
- 8.1 km
- Elevation gain
- 268 m
- Average gradient
- 3.3 %
- Start altitude
- 408 m
- Road
- Departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 7.8 %
- Hardest 2 km
- 5.4 %
- Hardest kilometre
- km 7 · 6.7%
- Above 8%
- 0.2 km (2% of the climb)
- Difficulty index
- 0.9 Easy
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 | 33 min | 14.7 km/h |
| 3.0 W/kg — 210 W | 24 min | 20.0 km/h |
| 4.0 W/kg — 280 W | 20 min | 24.4 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 | 2.2 % | 430 m |
| 2 | 1.9 % | 449 m |
| 3 | 2.4 % | 474 m |
| 4 | 3.4 % | 508 m |
| 5 | 2.1 % | 529 m |
| 6 | 3.3 % | 562 m |
| 7 | 6.7 % | 629 m |
| 8 | 4.0 % | 669 m |
| 9 (partial) | 6.5 % | 675 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Saint-Julien-Labrousse (Belsentes) 7.2 km · 4.3 %
Frequently asked questions
How long is the climb to Col des Nonières?
The hardest climb of Col des Nonières, from Lamastre, is 8.1 km long for 268 m of ascent, i.e. 3.3% average.
What is the steepest part of Col des Nonières?
The steepest 500 m sits at 7.8%, and the hardest kilometre is the 7th, at 6.7%.
How long does it take to climb Col des Nonières from Lamastre?
Col des Nonières from Lamastre takes about 24 min at 3.0 W/kg, i.e. 20.0 km/h on average. The page gives three levels and their assumptions.
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