Mont du Chat from Le Bourget-du-Lac
Mont du Chat from Le Bourget-du-Lac: 13.5 km at 9.3% average and 1,256 m of climbing, up to 1,486 m.
- Distance
- 13.5 km
- Elevation gain
- 1,256 m
- Average gradient
- 9.3 %
- Start altitude
- 227 m
- Road
- Minor departmental road
- Surface
- Paved throughout
- Steepest 500 m
- 12.9 %
- Hardest 2 km
- 10.6 %
- Hardest kilometre
- km 4 · 11.0%
- Above 8%
- 10.2 km (76% of the climb)
- Difficulty index
- 12.2 Very hard
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 | 2h05 | 6.5 km/h |
| 3.0 W/kg — 210 W | 1h24 | 9.6 km/h |
| 4.0 W/kg — 280 W | 1h04 | 12.6 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 | 8.5 % | 312 m |
| 2 | 7.2 % | 383 m |
| 3 | 9.0 % | 473 m |
| 4 | 11.0 % | 583 m |
| 5 | 9.7 % | 680 m |
| 6 | 9.4 % | 774 m |
| 7 | 10.4 % | 878 m |
| 8 | 10.2 % | 980 m |
| 9 | 10.6 % | 1,086 m |
| 10 | 8.3 % | 1,169 m |
| 11 | 10.1 % | 1,271 m |
| 12 | 9.1 % | 1,361 m |
| 13 | 8.8 % | 1,450 m |
| 14 (partial) | 6.8 % | 1,483 m |
Download the GPX track All climbs of this col
The other climbs of this col
- From Meyrieux-Trouet 12.0 km · 9.0 %
Frequently asked questions
How long is the climb to Mont du Chat?
The hardest climb of Mont du Chat, from Le Bourget-du-Lac, is 13.5 km long for 1,256 m of ascent, i.e. 9.3% average.
What is the steepest part of Mont du Chat?
The steepest 500 m sits at 12.9%, and the hardest kilometre is the 4th, at 11.0%.
How long does it take to climb Mont du Chat from Le Bourget-du-Lac?
Mont du Chat from Le Bourget-du-Lac takes about 1h24 at 3.0 W/kg, i.e. 9.6 km/h on average. The page gives three levels and their assumptions.
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