Les crêtes de Sur Lyand
Key facts
- Distance
- 8.0 km
- Ascent
- +440 m
- Descent
- −329 m
- Estimated time
- 2 hr 30
- hiking
- Difficulty
- Moderate
- official rating
- Route
- Loop
- back to the start
Official time: 3 h 30 min
Profile and gradient
- under 10%
- 10 to 20%
- over 20%
Gradient along the route: 5.6 km under 10%, 2.0 km at 10 to 20% and 0.4 km over 20%. Elevation from 1,146 m to 1,424 m over 8.0 km.
Surface and path types
- Surface
- Dirt & gravel 100%
- Path types
- Trail 66%
- Track 34%
Difficulty
Official rating: moderate, by Département de l'Ain.
Getting there
Start: Grange d'en-Bas, Brénaz, Arvière-en-Valromey (01).
Sources
- Track: Département de l'Ain, PDIPR, Licence Ouverte 2.0, Licence Ouverte 2.0 (Etalab) (departement-ain.opendata.arcgis.com/datasets/ain::pdipr-itineraire). Time estimated by GPX Path with the Mac app rule, breaks not included.
- Official time: 3 h 30 min, departement-ain.opendata.arcgis.com
- Surface and path types: © OpenStreetMap contributors, ODbL, extract of 28 October 2026, matched to the track every 10 m (openstreetmap.org/copyright)
- Official elevation gain: 440 m, Département de l'Ain
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