Alto de l'Angliru
From La Vega (Riosa) · 12.5 km · 10.13 % average
Photo (illustrative – not this climb): Photo: Zarateman · CC BY-SA 3.0
- Start
- La Vega (Riosa)
- Summit
- 1,573 m
- Distance
- 12.5 km
- Elevation gain
- 1,266 m*
- Average gradient
- 10.13 %
- Maximum gradient
- 23.6 %
- Difficulty
- Extreme (FIETS 13.4)
The climb at a glance
Schematic A straight line at the average gradient – the real road is steeper in places and easier in others.
- The first 5 km average 7.6 %; the steepest ramp, Cueña les Cabres at 23.6 %, is 3 km from the summit (Wikipedia).
- Start village as commonly described – verify the exact start point before publishing.
In the footsteps of the pros
- Vuelta a España: first included in 1999, on stage eight from León (Wikipedia).
How long might it take?
| Sustained power | ≈ Time |
|---|---|
| 2.5 W/kg | 1 h 41 |
| 3.5 W/kg | 1 h 13 |
| 4.5 W/kg | 57 min |
Estimate Physics model at constant power on a constant 10.13 % 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 (Oviedo (AEMET), 1991–2020 normals).
Weather & altitude
Summit at 1,573 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
- Lagos de Covadonga ≈ 78 km away (straight line)
- Torre – Serra da Estrela ≈ 351 km away (straight line)
- Col du Tourmalet ≈ 495 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.