Pas de Peyrol (Puy Mary)
From Dienne · 10.9 km · 4.9 % average
Photo: Photo: Benoit Kornmann · CC BY-SA 3.0
- Start
- Dienne
- Summit
- 1,589 m
- Distance
- 10.9 km
- Elevation gain
- 535 m
- Average gradient
- 4.9 %
- Maximum gradient
- Not reliably sourced
- Difficulty
- Hard (FIETS 3.2)
The climb at a glance
Schematic A straight line at the average gradient – the real road is steeper in places and easier in others.
- At 1,589 m, the highest road pass in the Massif Central (Wikipedia).
- The Salers side ends with three kilometres at an average of 12 % and a maximum of 15 % (Wikipedia, describing the 2004 Tour).
In the footsteps of the pros
- Tour de France: first used in 1959 on a stage from Aurillac to Clermont-Ferrand (Wikipedia).
- 2020: stage 13 finished at the summit, won by Daniel Martínez (Wikipedia).
How long might it take?
| Sustained power | ≈ Time |
|---|---|
| 2.5 W/kg | 48 min |
| 3.5 W/kg | 36 min |
| 4.5 W/kg | 29 min |
Estimate Physics model at constant power on a constant 4.9 % gradient: rider 75 kg, bike and kit 9 kg, rolling resistance 0.005, CdA 0.4 m², air density 1.1 kg/m³, 3 % drivetrain loss; W/kg relative to rider weight; no wind, no stops. Real times vary – this is not a standard.
Best season
Nearest destination climate: prime Jun–Sep (Aurillac (Météo-France via Meteociel), 632 m, 1991–2020 normals).
Weather & altitude
Summit at 1,589 m: expect it to be much colder than in the valley – roughly 6–7 °C per 1,000 m in typical conditions.
Surface & traffic
[PLACEHOLDER] Road surface, traffic and tunnels – to verify
Water & food
[PLACEHOLDER] Fountains, cafés and the last shop before the top – to verify
Descent
[PLACEHOLDER] Descent notes – surface, hairpins, cold. Always pack a layer.
Nearby climbs
- Mont Ventoux ≈ 231 km away (straight line)
- Alpe d'Huez ≈ 267 km away (straight line)
- Col de la Madeleine ≈ 292 km away (straight line)
Sources & verification
Data Figures copied from the sources listed, retrieved 14 Nov 2026. Published numbers differ with the exact start and finish – we show one sourced version. Exact start point and date of on-the-road verification: [PLACEHOLDER] to record.